Analytical Balance
BM-5
BM-5D
BM-20
BM-22
BM-252
BM-200BM-300BM-500

1WMPD4002195F

© 2019 A&D Company, Limited. All rights reserved.
No part of this publication may be reproduced, transmitted, transcribed, or translated into any language inany form by any means without the written permission of A&D Company, Limited.

The contents of this manual and the specifications of the instrument covered by this manual are subject tochange for improvement without notice.

Windows, Word and Excel are registered trademarks of Microsoft Corporation.

Basic Operation
1.
1.1.
1.2.

Contents

Introduction .............................................................................................................................. 3
Features ............................................................................................................................... 4
Compliance .......................................................................................................................... 52.

Unpacking the Balance ........................................................................................................... 6

3.

Installing the Balance and Precautions................................................................................... 9
Installing the Balance ........................................................................................................... 9
Precautions Before Use..................................................................................................... 12
Precautions During Use..................................................................................................... 14
Precautions After Use ........................................................................................................ 15
Precautions for Power Supply ........................................................................................... 15

3.1.
3.2.
3.3.
3.4.
3.5.
4.

Display Symbols and Key Operation .................................................................................... 16

5.
5.1.
5.2.
5.3.

Weighing Units ...................................................................................................................... 17
Units ................................................................................................................................... 17
Storing Active Units ............................................................................................................ 21
Selecting Units and Weighing Modes................................................................................ 22

6.1.
6.2.
6.3.
6.4.
6.5.
6.6.
6.7.

Weighing................................................................................................................................ 24
Basic Operation (Gram Mode) .......................................................................................... 24
Smart Range...................................................................................................................... 26
Counting Mode (PC) .......................................................................................................... 27
Percent Mode (%).............................................................................................................. 29
Ionizer (Neutralization Device)........................................................................................... 30
Monitoring the Clock and Environmental Sensors ............................................................ 32
Repeatability Test............................................................................................................... 33

6.

Adapting to the Environment
7.
7.1.
7.2.

Response Adjustment ........................................................................................................... 34
Automatic Response Adjustment ...................................................................................... 34
Manual Response Adjustment........................................................................................... 35

8.1.
8.2.
8.3.
8.4.
8.5.
8.6.
8.7.

Calibration ............................................................................................................................. 36
Calibration Group............................................................................................................... 36
Automatic Self Calibration ................................................................................................. 37
Calibration Using the Internal Mass................................................................................... 38
Calibration Test Using the Internal Mass ........................................................................... 39
Calibration Using an External Weight ................................................................................ 40
Calibration Test Using an External Weight ........................................................................ 41
Correcting the Internal Mass Value ................................................................................... 42

8.

Selecting Functions
9.
9.1.
9.2.

Function Switch and Initialization .......................................................................................... 43
Permit or Inhibit .................................................................................................................. 43
Initializing the Balance ....................................................................................................... 44

10.
Function Table ....................................................................................................................... 45
10.1. Setting the Function Table ................................................................................................. 45
10.2. Details of the Function Table ............................................................................................. 47
10.3. Description of the Class "Environment, Display"............................................................... 49
10.4. Description of the Item "Data Output Mode" ..................................................................... 51
BM series1

10.5.
10.6.
10.7.

Description of the Item "Data Format" ............................................................................... 52
Data Format Examples ...................................................................................................... 55
Clock and Calendar Function ............................................................................................ 57

11.
ID Number and GLP Report.................................................................................................. 58
11.1.
Setting the ID Number ....................................................................................................... 58
11.2.
GLP Report ........................................................................................................................ 59
12.
Data Memory......................................................................................................................... 65
12.1. Notes on Using Data Memory ........................................................................................... 65
12.2. Data Memory for Weighing Data ....................................................................................... 65
12.3. Data Memory for Calibration and Calibration Test Data .................................................... 69
13.

Underhook............................................................................................................................. 71

14.

Density Measurement (Specific gravity) ............................................................................... 72

15.
Password Function................................................................................................................ 75
15.1. Balance Software Version 1.50 to 1.64 ............................................................................. 75
15.2. Balance Software Version 1.660 or later ........................................................................... 76
15.3. Using the Password Function............................................................................................ 77
15.4. Entering the Password Before Weighing .......................................................................... 78
15.5. Logging Out ....................................................................................................................... 80
15.6. Storing or Changing the Password .................................................................................... 81
15.7. Changing the Password .................................................................................................... 82
15.8. Deleting the Password (U5ER 0 1～10)............................................................................ 83
15.9. Forgotten Password........................................................................................................... 83
Interface and Communication
16.
Standard Input and Output Interface..................................................................................... 84
16.1. RS-232C Interface ............................................................................................................. 84
16.2. Connecting to Peripheral Equipment................................................................................. 85
16.3. Commands ........................................................................................................................ 89
17.
Key Lock Function................................................................................................................. 94
17.1. Locking All the Keys........................................................................................................... 94
17.2. Locking the Specified Keys................................................................................................ 95
18.

Checking the Balance Software Version............................................................................... 95

Maintenance
19.
Maintenance.......................................................................................................................... 96
19.1. Cleaning and Handling the Balance .................................................................................. 96
19.2. Error Codes........................................................................................................................ 96
19.3. Other Display ..................................................................................................................... 98
19.4. Checking the Balance Performance and Environment ..................................................... 99
19.5. Asking for Repair ............................................................................................................... 99
20.
Specifications ...................................................................................................................... 100
20.1. External Dimensions........................................................................................................ 102
20.2. Options and Peripheral Equipment ................................................................................. 103
21.
Terms/Index ......................................................................................................................... 107
21.1. Terms ............................................................................................................................... 107
21.2. Index ................................................................................................................................ 108

2

BM series

1.

Introduction

This manual describes how the BM series balances work and how to get the most out of them interms of performance. Read this manual thoroughly before using the balance and keep it at handfor future reference.

About this manualThis manual consists of the following five parts:
Basic operation .............................. Describes precautions, the balance's construction and basic
operation.
Adapting to the environment ........... Describes response (and stability) adjustment to adapt to theenvironment where there is vibration or drafts, the way tomaintain weighing precision in a variation of ambient
temperature, calibration and calibration test.
Selecting functions .......................... Describes functions of the balance.
Interface and communication.......... Describes the serial interface used for communicating with acomputer that requests weighing data and controls thebalance, and for use with a printer
Maintenance .................................. Describes maintenance, error codes, troubleshooting,specifications and options.

Balance software version
Some balance operations vary depending on the balance software version. For details on
checking the software version, refer to “18. Checking the Balance Software Version”.

BM series31.1. Features
A built-in ionizer can eliminate static electricity from the weighing sample before weighing,
reducing weighing errors.
Each electrode unit of the ionizer is designed to be removed, cleaned and replaced.
Automatic self calibration, using the internal mass, adapting to changes in temperature.
Response adjustment adapting to drafts and/or vibration in the environment automatically.
Memory function to store weighing data and calibration data.
When only weighing data is stored, a maximum of 200 data can be stored.
Interval mode to store the weighing data periodically.
Good laboratory practice (GLP) / Good manufacturing practice (GMP) data can be output using
the RS-232C serial interface.
A built-in clock and calendar that can add the time and date to the output data. (Changing theclock setting can be limited to the administrator. Refer to “15. Password Function”.)
The password function can be used to restrict balance users or changes to the function settings.
The key lock function disables the balance key operation and enables the balance to be operated
only by commands from external devices.
Underhook, for measuring density and weighing magnetic materials.
Multiple weighing units with most of the common units used around the world.
Gram, Milligram, Counting mode, Percent mode, Ounce (Avoir), Troy Ounce, Metric carat, Momme,
Pennyweight, Grain (UK), Tael (preset at the factory), Tola (India), Messghal and Density mode
The BM-5D and BM-22 are equipped with a smart range function to weigh in the precision range(readability: 1 μg) after zeroing a tare weight, if within the weighing capacity.
The micro tube holder is included in the accessories of the BM-5, BM-5D, BM-20 and BM-22.
Density mode for calculating the density of a solid.
The BM series balances are equipped with an RS-232C serial interface and a USB interface tocommunicate with a computer. While outputting data to a printer using the RS-232C interface,data can be transmitted to a computer at the same time using the USB interface.
Using the RS-232C interface and the Windows communication tools software (WinCT) enables bidirectional communication between a Windows computer and the balance.
The current version of the WinCT can be downloaded from the A&D website.
Connecting the USB interface of the balance by a cable to a Windows computer allows
transmission of the weighing data to Excel or Word.
When multiple balances have the BM-08 Ethernet interface installed in place of the USB interface
and connected to a LAN, data can be acquired from each of them using the WinCT-Plus software.
When the accessory data logger (AD-1688) is connected, weighing data can be stored without
using a computer.

4

BM series

1.2. Compliance1.2.1.

Compliance with FCC Rules

Please note that this equipment generates, uses and can radiate radio frequency energy. Thisequipment has been tested and has been found to comply with the limits of a Class A computing
device pursuant to Subpart J of Part 15 of FCC rules. These rules are designed to provide
reasonable protection against interference when equipment is operated in a commercial
environment. If this unit is operated in a residential area, it may cause some interference andunder these circumstances the user would be required to take, at his own expense, whatevermeasures are necessary to eliminate the interference.
(FCC = Federal Communications Commission in the U.S.A.)

BM series5

2.

Unpacking the Balance

Unpack the balance carefully. Keep the packing material to be used for transporting the balancein the future. See the illustrations to confirm that everything is included.

Accessories for each model
BM-5, BM-5D, BM-20, BM-22

Small weighing
pan for filter
Weighing pan

Large weighing
pan for filter

BM-252

Weighing pan

Pan support

Pan support
Micro tube holder

BM-200, BM-300
BM-500Weighing pan

Pan support
Fine range ring

Small fine range ring
Fine range ring

Breeze break ring

Dust plate
φ15, 0.8 mL
φ12, 0.3 mL
φ8, 0.05 mL
Large
MediumSmall
Round aluminum analytical pans (10 pieces each)

Dust plate

Breeze break ring

Dust plate

Tabletop Breeze break (M)6

BM series

Common accessories

Positions to place the AC adapter labels
Attach the AC adapter labels to the AC adapter
as shown in the illustration.
D-sub 9 pins

AC adapter
AC adapter labels
Notes
Please confirm that the AC adapter type is correct for your local
voltage and receptacle type.
Please use the dedicated AC adapter specified for the balance.
Do not use the AC adapter provided with the balance for othermodels or equipment with which the AC adapter may not becompatible.
If you use the wrong AC adapter, the balance and other equipment
may not operate properly.

USB cable(1.5 m or 1.8 m)

Display cover(PET resin)

Separation plate
If unnecessary, remove it.

Data logger
AD-1688
The weighing data can be
stored when connected to
the RS-232C interface ofthe balance.

Tweezers
AD-1689
Tweezers for handling a weight.
Use it to avoid temperature changes
due to having your hand in theweighing chamber, thus to performaccurate calibration.

Body cover
Cover during storage to prevent dust and dirt contamination.
The cover can be used for the balance with the AC adapter and other cables
connected.
BM series

7

LED of the ionizer
Glass door handle

Ionizer
Neutralization
area

Electrode unit of theionizer

Example of BM-20
Separation plate

If unnecessary, remove it.

Weighing
chamberLeveling footJoint handle
When jointed to the right (left) glass
door handle, the right (left) glass
door can be opened or closed withthe left (right) joint handle.

Display
Keys
Display cover

Bubble spirit level
Glass door handle
The handle for the glass door.
The handle can be jointed to the joint handle
USB interface
AC adapter jack
External key jack
Cap the terminal with the accessory
rubber cap when it is not used.

Outlet example
Serial number
RS-232C serial interface
D-sub 9 pins
Anti-theft device
Grounding terminal
8

BM series

3.

Installing the Balance and Precautions

3.1. Installing the Balance

1 Place the balance on a solid weighing table. Refer to "3.2. Precautions Before Use" for details ona place to install the balance.
2 Assemble the weighing pan and other parts in accordance with the model and use as shown below.

BM-200, BM-300, BM-500

BM-252Fine range ring

Weighing pan
Pan support
Breeze break ring

Fine range ring

Dust plate

Note
The mounting
direction (head /tail) of the dust
plate.

Sectional view

Use the fine range ring in place of the breeze breakring to avoid errors caused by drafts when weighingwith a readability of 0.01 mg.

BM-5, BM-5D, BM-20, BM-22
Note

When using the micro tube holder for the BM-5 and BM-5D:
The micro tube holder is approximately 2 g heavier than the standard pan (weighing pan andpan support). When a micro tube holder is used for the BM-5 and BM-5D, the available weighing
range will be up to approximately 3 g including the tare such as a micro tube and test tube.

Micro tube holder
Large weighing pan for filter
Small weighing pan for filter
Weighing pan
Pan support
Small fine range ring
Fine range ring
Dust plate

Choose the weighing pan
appropriate to the filter size.
BM series

9

Use the holder for
micro tube or test tubeof φ12 mm or less.

Assembling the parts in the weighing chamber
BM-252, BM-200
BM-300, BM-500

BM-252

BM-5, BM-5D, BM-20, BM-22

Leveling
footBubble spirit level3 If the separation plate is not necessary, remove thescrew and take the plate off. Refer to "3.1.2.
Removing and attaching the separation plate".

Separation plateScrew

4 Adjust the level of the balance using the leveling feet.
(Refer to "Adjusting the Level" on page 14.)5 Confirm that the AC adapter type is correct for your local
voltage and power receptacle type.

Hook

6 Connect the specified AC adapter to the balance. Warmup the balance for at least one hour with nothing on theweighing pan.

10

BM series

3.1.1. How to use the Tabletop breeze break (For BM-5, BM5D, BM-20, BM-22)
Features This Tabletop breeze break is used to prevent from ambient drafts due to air conditioning and body motion so as

to reduce weighing error.
 Be sure to install this breeze break on the balance, as it is affected by even the slightest wind.
 This breeze break is designed for the BM series with most suitable use.
 The transparent panel assembly consists of antistatic plastic material, which protects the balance from static

electricity.
 The rear panel is equipped the hole that is used to pass the RS-232C and AC adapter cables through.

How to install
Rear panel
Front panel

We recommend to install the tabletop breeze break (M) in aposition where the display of the balance can be seen
easily and the balance can be operated properly.
Minimize the opening width A of the slide door as narrowas possible so as to reduce influence of ambient drafts.

BM series

A

Caution• Do not use organic solvents to clean the breeze break because it may damage the transparency and anti-static
properties of the panels.
• Use a soft lint free cloth dampened with warm water and a mild detergent when cleaning the breeze break.

BM series113.1.2.

Removing and attaching the separation plate

Note Take care not to damage the separation plate when handling it.

Removing the separation plate
1 Support the separation plate andremove the screw from the plate.
2 Lift the plate and unhook the hooks.

Step 1Screw
Hook
Step 33 Rotate the plate on the axis of the front edge.
Rotate the plate on the axis of the back edge.

Step 1
Step 2

4 Remove the plate from the chamber.

Attaching the separation plate
Use the arrows in reverse to attach the plate.
5 Insert the plate into the chamber.
Step 3

6 Rotate the plate on the axis of the back edge.
Rotate the plate on the axis of the front edge.
Level the plate.
7 Insert the hooks and hook the plate.

Step 4

Hook

Separation plate

8 Support the plate and secure the screw.

3.2. Precautions Before Use
To ensure that you get the most from your balance, please try to follow these conditions as closely as
possible, especially for the BM-5, BM-5D, BM-20 and BM-22 that are sensitive.
The best operating temperature is about 20°C / 68°F at about 50% Relative Humidity.
The weighing room should be free of dust.
Clean the weighing chamber and its surroundings to prevent foreign matter from invading,especially when weighing a very small amount of sample.
The weighing table should be solid and free from vibration, drafts (such as frequently opening doors
or windows) and as level as possible. We recommend that you use the anti-vibration table (AD1671) and the remote controller (AD-8922A) for the BM-5, BM-5D, BM-20 and BM-22.
Do not install the balance where it will be subject to vibration. Corners of rooms on the first floor are best.
Do not install the balance near a heater, air conditioner, or in a breeze. The influence of breezes
can be reduced by using the tabletop breeze break (L) (AD-1672/AD-1672A) or the tabletop
breeze break (M) (AD-1676).
Do not install the balance in direct sunlight. Avoid excessive temperature changes.
Do not use the balance near other equipment which produces magnetic fields.
Adjust the level of the balance using the leveling feet.
Please warm up the balance for at least one hour. Plug in the AC adapter as usual.
Calibrate the balance if it is installed for the first time or relocated, or when a weighing pan is replaced.
Ensure a stable power source when using the AC adapter.
Do not place or use the balance where there is flammable or corrosive gas present.
12
BM seriesAdjusting the level
When the bubble is off to the left：
When the bubble is off to the right：
Turn the leveling foot on the rear right in the Turn the leveling foot on the rear left in theclockwise direction.
clockwise direction.

Level

Level

When the bubble is off to the backward
When the bubble is off to the forward
position：
position：
Turn both leveling feet on the rear in the Turn both leveling feet on the rear in the
counterclockwise direction at the same time.
clockwise direction at the same time.
Level

Level
水平器

Up

Down

Leveling footLeveling foot

Down

Up

Red circle
BubbleBubble spirit levelOK
Red circle

BM seriesNO13

3.3. Precautions During Use
Note the following items to get accurate weighing data.

Charged material

Discharge static electricity from the weighing sample. When aweighing sample (plastics, insulator, etc.) could have a static
charge, the weight value is influenced. Ground the balance, andEliminate the static electricity using the built-in ionizer.
Try to keep the ambient humidity at or above 45% RH in the room.
Use a metal shield case.
Wipe a charged material (plastic sample, etc.) with a damp cloth.

Metal caseThis balance uses a strong magnet as part of the balance assembly,
so please use caution when weighing magnetic materials. If there isa problem, use the underhook (refer to "13. Underhook") tosuspend the material away from the influence of the magnet.
Eliminate temperature differences between the weighing sample andthe environment. When a sample is warmer (cooler) than the ambient
temperature, the sample will appear lighter (heavier) than the truemass. This error is due to the rising (falling) draft around the sample. If
you touch the sample, the same type of error will occur. Do not touch
the sample directly with your hand. Use tweezers or other tools.

Grounding

Magnetic material
Draft
20°C

40°C

Weighing pan

Do not drop things upon the weighing pan, or place a weightbeyond the range of the balance on the weighing pan.
Make each weighing gently and quickly to avoid errors due tochanges in the environmental conditions.
Use the fine range ring and attach the separation plate (in conditionat shipping from factory) in order to avoid weighing errors caused bydrafts when weighing using the BM-252 (readability: 0.01 mg).
Use the small fine range ring and fine range ring and attach theseparation plate (in condition at shipping from factory) in order to avoid
weighing errors caused by drafts when weighing using the BM-5,
BM-5D, BM-20 or BM-22 (readability: 0.01 mg and 0.001 mg). To
reduce the influence of breezes, minimize operation of doors of theweighing chamber. In addition, in order to weigh more accurately
while reducing the effects of the surrounding environment, be sure to
install the tabletop breeze break (M) to the weighing chamber.
The weighing value of the BM-5, BM-5D, BM-20 and BM-22
may change after the stabilization indicator is displayed. We
recommend that you set a certain amount of wait time (approx. 10
seconds) before reading the value after the stabilization indicator isdisplayed.
If contamination may be a problem, perform sampling operations
outside the weighing chamber in order to prevent the sample fromscattering in the weighing chamber.

Shock
Fine range ringBM-252
Small fine range ring
Fine range ring
BM-5
BM-5D
BM-20
BM-22
Tabletop breeze break (M)
BM-5
BM-5D
BM-20
BM-22

Take into consideration the affect of air buoyancy on a sample
when more accuracy is required.
14

BM series

Do not use a sharp instrument (such as a pencil or ball point pen) topress the keys, use your finger only.
Press the RE-ZERO key before each weighing to prevent possible
errors.
Keep the balance interior free of foreign matter (dust, liquid or metalfragments).

3.4. Precautions After Use
Avoid mechanical shock to your balance.
Do not disassemble the balance. Contact your local A&D dealer if your balance needs service
or repair.
Do not use solvents to clean the balance. For best cleaning, wipe with a dry lint free cloth or alint free cloth that is moistened with warm water and a mild detergent.
Keep the balance interior free of foreign matter (dust, liquid or metal fragments).

3.5. Precautions for Power Supply
Do not remove the AC adapter while the internal mass is in motion, for example, right after the
AC adapter is connected, or during calibration using the internal mass.
If the AC adapter is removed under the conditions described above, the internal mass will beleft unsecured, that may cause mechanical damage when the balance is moved.
Before removing the AC adapter, press the ON:OFF key and confirm that zero is displayed in
the weighing mode.
After connecting the AC adapter to the balance, warm up the balance for at least one hour
before weighing.
When the AC adapter is connected, the balance is in the standby mode if the standby indicatoris on. This is a normal state and does not harm the balance. For accurate weighing, we
recommend that the AC adapter be kept connected, especially for the BM-5, BM-5D, BM-20
and BM-22.

BM series

15

4.

Display

Display Symbols and Key Operation
The amount of stored data with data memory function
Humidity (%)
Response indicator for approx. 30
seconds when weighing starts.
Right and left glass door indicator
Barometric pressure (hPa)Standby indicator ofinterval memory function
Ionizer operation indicator

Processing indicator
Stabilization indicatorStandby indicatorof power supply
Weighing data or stored data

Units.
Refer to "5. Weighing Units".

The current data number
Active processing indicator
Density mode, Display lock
Prior notice indicator of
automatic self calibration

Blinking indicators

Active indicator ofinterval memory function

The interval memory function is used to store the weighing data periodically. Refer to "12. Data Memory".

Key operation

Press and release the key immediately or "Click the key" ...................................................................
Press and hold the key (for approx. 2 seconds) ..............................................................................
Key

When pressed and released
When pressed and held (approx. 2 seconds)
Turns the display on and off. The standby indicator is displayed when the display is turned off.
When the display is turned on, the weighing mode is enabled. If the password function isused, pa55
is displayed to prompt you to enter a password. Refer to "15.4. Entering
the Password Before Weighing".
This key is available anytime. Pressing the key during operation will interrupt the operationand turn the display off.
Cancels the operation when performing
function settings.
Displays other items of the calibration menu.
Enters the calibration mode using the internal
mass.
Switches the preset weighing units stored
Performs automatic response adjustment.
in the function table.
Refer to "5. Weighing Units".
Displays the function table menu.
In the weighing mode, turns the minimum
Refer to "10. Function Table".
weighing value on and off.
Performs a repeatability test when pressed
In the counting or percent mode, entersand held for another 2 seconds after thethe unit mass storing mode or referencefunction table menu is displayed.
mass storing mode.
Refer to "6.7. Repeatability Test".
No function at the factory setting.
The key to output the weighing data to a
By changing the function table:
printer or personal computer (or store it in"Title block" and "End block" for GLP /memory) depending on the function table
GMP report are output.
settings. (Factory setting = output)
The data memory menu is displayed.
The key to set the display to zero.
The key to turn the ionizer on and off.
The key to monitor the time and date, and the environmental sensors (temperature, humidity, barometricpressure), for several seconds. Refer to "6.6. Monitoring the Clock and Environmental Sensors".
16

BM series

5.

Weighing Units

5.1. Units
The units and weighing modes can be selected and stored in the function table as described in"5.2. Storing Active Units".
The sequence of displaying them can be arranged to fit the frequency of use.
They are stored and are maintained in non-volatile memory, even if the AC adapter is removed.
If the law in your area permits, you may use all of the units. You can disable the units that you
don't regularly use. And you are able to turn them back on.
If a weighing mode (or unit of mass) has been turned off, that mode or unit will be missing in thesequence. Tael has four varieties, one of which can be selected and installed at the factory.
Press the MODE key to select a unit or mode for weighing.
For details about the units and modes, see the table below:
Name (unit, mode)

Abbreviation

Display unit

Conversion factor

Gram

g

1g

Milligram

mg

0.001 gCounting mode

PC-

Percent mode%-

Ounce (Avoir)oz

28.349523125 g

Troy Ounceozt

31.1034768 g

Metric Carat

ct

0.2 g

Momme

mom

3.75 gPennyweightdwt

1.55517384 g

Grain (UK)GN

0.06479891 g

Tael (HK general, Singapore)
Tael (HK jewelry)
Tael (Taiwan)

37.7994 g
37.429 gtl

37.5 gTael (China)

31.25 gTola (India)t

11.6638038 g

Messghalm

4.6875 g

Density mode

DS

Refer to "14. Density Measurement"

Density mode
To use the density mode, it must be stored in the function table as described on page 21.
For details about this mode, refer to "14. Density Measurement".
To select the density mode, press the MODE key until the processing indictor
the unit "g" displayed.

BM series

17

blinks with

Capacity and readability for the BM-252, BM-200, BM-300, BM-500
The tables below indicate the weighing capacity and the readability for each balance.
Unit

BM-200BM-300BM-500Capacity

Readability

Gram

220

320

520

Milligram

220000320000520000Ounce (Avoir)

7.76

11.2

18.3

0.00001

Troy Ounce

7.07

10.2

16.7

0.00001

Metric Carat
Momme

1100
58.6

1600
85.3

2600
138

0.001
0.0001

Pennyweight

141

205

334

0.0001

Grain (UK)

3395

4938

8024

0.002

Tael (HK general, Singapore)

5.82

8.46

13.7

0.00001

Tael (HK jewelry)

5.87

8.54

13.8

0.00001

Tael (Taiwan)
Tael (China)

5.86
7.04

8.53
10.2

13.8
16.6

0.00001
0.00001

Tola (India)

18.8

27.4

44.5

0.00001

Messghal

46.9

68.2

110

0.0001

Unit

0.0001
0.1

BM-252
Capacity

Readability

Gram

250

0.00001

Milligram

250000Ounce (Avoir)

8.81

0.000001

Troy Ounce

8.03

0.000001

Metric Carat

1250

0.0001

Momme
Pennyweight

66.6
160

0.00001
0.00001

Grain (UK)3858

0.0002

Tael (HK general, Singapore)

6.61

0.000001

Tael (HK jewelry)

6.67

0.000001

Tael (Taiwan)

6.66

0.000001

Tael (China)
Tola (India)

8.00
21.4

0.000001
0.000001

Messghal

53.3

0.00001

0.01

18

BM series

Capacity and readability for the BM-5 and BM-5D
The BM-5D is equipped with the precision range and standard range of the smart range function.
BM-5
Unit

Precision range
Capacity

Readability

Gram

5.20

0.000001

MilligramOunce (Avoir)

5200
0.183

0.001
0.0000001

Troy Ounce

0.167

0.0000001

Metric Carat

26.0

0.00001

Momme

1.38

0.000001

Pennyweight

3.33

0.000001

Grain (UK)
Tael (HK general, Singapore)

80.1
0.137

0.000020.0000001

Tael (HK jewelry)

0.138

0.0000001

Tael (Taiwan)

0.138

0.0000001

Tael (China)

0.166

0.0000001

Tola (India)

0.444

0.0000001

Messghal

1.10

0.000001
BM-5D

Unit

Precision range

Standard range

Capacity

Readability

Capacity

Readability

Gram

2.10

0.000001

5.20

0.00001

Milligram

2100

0.001

5200

0.01

Ounce (Avoir)

0.07370.0000001

0.183

0.000001

Troy Ounce

0.06710.0000001

0.167

0.000001

Metric Carat

10.5

0.00001

26.0

0.0001

Momme
Pennyweight

0.560
1.34

0.000001
0.000001

1.38
3.33

0.00001
0.00001

Grain (UK)32.4

0.0000280.1

0.0001Tael (HK general, Singapore)

0.05510.0000001

0.137

0.000001

Tael (HK jewelry)

0.05600.0000001

0.138

0.000001

Tael (Taiwan)

0.05600.0000001

0.138

0.000001

Tael (China)
Tola (India)

0.06710.179

0.0000001
0.0000001

0.166
0.444

0.000001
0.000001

Messghal

0.444

0.000001

1.10

0.00001

BM series

19

Capacity and readability for the BM-20 and BM-22
The BM-22 is equipped with the precision range and standard range of the smart range function.
BM-20
Unit

Precision range
Capacity

Readability

Gram

22.0

0.000001

MilligramOunce (Avoir)

22000
0.776

0.001
0.0000001

Troy Ounce

0.707

0.0000001

Metric Carat110

0.00001

Momme

5.86

0.000001

Pennyweight

14.1

0.000001

Grain (UK)
Tael (HK general, Singapore)

339
0.582

0.000020.0000001

Tael (HK jewelry)

0.587

0.0000001

Tael (Taiwan)

0.586

0.0000001

Tael (China)

0.704

0.0000001

Tola (India)

1.88

0.0000001

Messghal

4.69

0.000001
BM-22

Unit

Precision range

Standard range

Capacity

Readability

Capacity

Readability

Gram

5.10

0.000001

22.0

0.00001

Milligram

5100

0.001

22000

0.01

Ounce (Avoir)

0.179

0.0000001

0.776

0.000001

Troy Ounce

0.163

0.0000001

0.707

0.000001

Metric Carat

25.5

0.00001110

0.0001

Momme
Pennyweight

1.36
3.27

0.000001
0.000001

5.86
14.1

0.00001
0.00001

Grain (UK)78.7

0.00002339

0.0001Tael (HK general, Singapore)

0.134

0.0000001

0.582

0.000001

Tael (HK jewelry)

0.136

0.0000001

0.587

0.000001

Tael (Taiwan)

0.136

0.0000001

0.586

0.000001

Tael (China)
Tola (India)

0.163
0.437

0.0000001
0.0000001

0.704
1.88

0.000001
0.000001

Messghal

1.08

0.000001

4.69

0.0000120

BM series

5.2. Storing Active Units
The units and modes can be selected and stored in the function table.
The sequence of displaying them can be arranged to fit the frequency of use.
The units stored are maintained in non-volatile memory, even if the AC adapter is removed.
1 In the weighing mode, press and hold the RANGE
key (for approx. 2 seconds) until ba5fnc is displayed,
and then release the key.

Press and hold(approx. 2 seconds)

2 Press the RANGE key several times to display Unit .

Press several times

3 Press the PRINT key to enter the unit selection mode.
4 Specify a unit or mode in the order to be displayedusing the following keys.
RANGE key .........To display the units sequentially.
RE-ZERO key ......To specify a unit or mode.
The indicatorappears when
the displayed unit or mode is specified.
ExamplesUnit
DisplayGramgMilligram

mg

Counting mode

PC

Percent mode%

Density mode

DS

ExamplesSpecify the unit
The indicator isdisplayed at theunits specified.

5 Press the PRINT key to store the units or modes.
The balance displays end and then displays the next
menu item of the function table.
6 Press the CAL key to exit the function table.
Then the balance returns to the weighing mode with theselected unit.

BM series

Selection key

21

Store

5.3. Selecting Units and Weighing Modes
The unit sequence of the factory settings.
Turning the display on.

Preset the sequence of displaying units andweighing modes to fit the frequency of use.
Refer to "5.2. Storing Active Units".
Press the MODE key in the weighing mode todisplay the units and weighing modes in order.
For the BM-5, BM-5D, BM-20 and BM-22,
the units preset at the factory,(Milligram)and (Gram), are displayed in this order.

BM-5
BM-5D
BM-20
BM-22

BM-252
BM-200BM-300BM-500For the BM-252, BM-200, BM-300 and BM500, the units preset at the factory, (Gram)
and(Milligram), are displayed in this order.
Density mode
To use the density mode, it must be stored in
the function table as described on page 21.
Refer to "14. Density Measurement" fordetails about the mode.
To select the density mode, press the
MODE key until the processing indictor
blinks with the unit "g" displayed.

Counting mode

Percent mode

Ounce (Avoir)

Troy Ounce

Metric Carat

Momme

Pennyweight

Grain (UK)TaelTola (India)

MessghalDensity mode

22

BM series

5.3.1.

Unit Setting Example

The example below sets the units in the order with g (gram) as the first unit followed by PC(counting mode).
1 In the weighing mode, press and hold the RANGE key(for approx. 2 seconds) until ba5fnc is displayed, andthen release the key.

Press and hold(approx. 2 seconds)

2 Press the RANGE key several times to display Unit .

Press several times

3 Press the PRINT key to enter the unit selection mode.

4 Press the RE-ZERO key to specify the unit of g.
The stabilization indicatorappears when the unit isspecified.
5 Press the RANGE key several times to display Unit

6 Press the RE-ZERO key to specify the unit of PC.
The stabilization indicatorappears when the unit isspecified.
7 Press the PRINT key to store the units.
The balance displays end and then displays the next
menu item of the function table.
8 Press the CAL key to exit the function table. Then thebalance returns to the weighing mode with g, the unit
selected first.
9 Press the MODE key to switch between g and PC.

BM series

23

Specify gram.

Press several times

Specify counting mode

Store

6.

Weighing

Precautions for the weighing operation
Press the RE-ZERO key each time, before placing a sample on the weighing pan, to prevent
possible errors.
Place a sample in the center of the weighing pan gently.
Temperature changes during measurement may cause weighing errors.
Shorten the operation time as much as possible. (Opening and closing door, placing and removing sample)
Material with an electrostatic charge or that is magnetic may cause weighing errors.
Use a pair of tweezers to avoid a temperature change due to having your hand in the weighingchamber.
Do not drop things on the pan, or place a weight on the pan that is beyond the weighing range.
Keep the area clean and dry.
Do not press keys with a sharp instrument (such as a pencil or ball point pen).
For precision weighing, keep the AC adapter connected to the balance.
Calibrate periodically to maintain weighing accuracy. Refer to "8. Calibration".
For the BM-5, BM-5D, BM-20 and BM-22, perform pre-weighing of the container (tare) so thatprecision weighing can be performed.
Consider section "3. Installing the Balance and Precautions" for the weighing operation.

6.1. Basic Operation (Gram Mode)
Refer to "4. Display Symbols and Key Operation" before operation.
Note When turning the balance on with a tare weight placed on thepan, the balance automatically displays the zero display.
1 Press the ON:OFF key to turn the display on.
Press the key
to select a unit,
if necessary.

2 Press the MODE key to select a unit, if necessary.

Container(tare)

3 Place a container (tare) on the weighing pan, if necessary.
Press the RE-ZERO key to cancel the tare weight.
Then zero is displayed.
Tare : A vessel placed on the pan, but not
Stabilization
to be included in the weighing data.
indicator
Example: Container.
Zero display
4 Place a sample on the pan or in the container.
Close the door.
5 Wait for the stabilization indicator
displayed, and then read the value.

Sample
The glass door
is not closed

to be

6 Remove the sample and container from the pan.

Weighing pan

Close the door
Stabilization
indicator

Warning

Remove24

BM series

Zero operation, tare operation and weighing range
When weighing is started
The balance will determine the reference zero point when the ON:OFF key is pressed to enter
the weighing mode.
Depending on the load condition at that time, the balance will automatically judge whether toperform zero or tare operation. The condition for determining which is used is "power on zerorange", and when power on zero range is exceeded, the tare operation is performed.
Re-zero operation
By pressing the RE-ZERO key, the display can be set to zero.
The re-zero operation with the RE-ZERO key will automatically judge whether to perform zero or
tare operation.
The condition for determining which is used is "zero range", and when zero range is exceeded, thetare operation is performed.
Weighing range
The range that the balance can weigh varies depending on the model.
When the total amount (net weight + tare weight) displayed for each model exceeds the maximum
display, E is displayed to indicate that the weighing range is exceeded.
When exceeded in the negative direction, -E is displayed.
Model
BM-5
BM-5D
BM-20
BM-22
BM-252
BM-200BM-300BM-500BM series

Power on zero range

Zero range-E display range

Approx. ±0.1 g

Approx. -3.0 g to +0.1 g

Less than approx. -3 gApprox. ±2.2 gApprox. -3.0 g to +0.4 g

Less than approx. -3 gApprox. ±25 g
Approx. ±22 g
Approx. ±32 g
Approx. ±52 g

Approx. -37 g to +5.0 g
Approx. -37 g to +4.4 g
Approx. -37 g to +6.4 gApprox. -37 g to +10.4 g

Less than approx. -37 g

25

6.2. Smart Range
The smart range for the BM-5D and BM-22 consists of the standard range and precision range(high resolution).
Smart range function
The range switches automatically, depending on the value displayed.
Pressing the RE-ZERO key allows weighing in the precision range, regardless of the tare value.
The range can be fixed to the standard range by pressing the RANGE key.
Example1 Press the RE-ZERO key to use the precision range.
The balance displays zero.
Precision range
Container (tare)

2 Place a container (tare) on the weighing pan.
When the value of the container (tare) exceeds theprecision range, the balance automatically switches
to the standard range.

Standard range

3 Press the RE-ZERO key to use the precision range.
The balance displays zero.

Precision range
Weighing sample

4 Place the weighing sample in the container (tare).
When the sample is within the precision range,
the weighing value can be read in high resolution.

Precision range

Precision range and standard range
Model

Unit

Precision range

Standard range

BM-5D

Milligram

0.000

to 2100.009

2100.01

to 5200.08

Gram

0.000000

to 2.100009

2.10001

to 5.20008

BM-22

Milligram

0.000

to 5100.009

5100.01

to 22000.08

Gram

0.000000

to 5.100009

5.10001

to 22.00008

Refer to pages 20 and 21 for other units.

26

BM series

6.3. Counting Mode (PC)This is the mode to determine the number of objects in a sample based on the standard sample
unit mass. The unit mass means an average mass of the samples. The smaller the variation in
the samples is, the more accurate the count will be. The balance is equipped with the AutomaticCounting Accuracy Improvement (ACAI) function to improve the counting accuracy.
Notes
Use samples with a unit mass of 1 mg or more for counting.
If the sample unit mass variable is too large, it may cause a counting error.
To improve the counting performance, use the ACAI function frequently or divide thesamples into several groups and count each group.

Selecting the counting mode
1 Press the MODE key to select the unit

(counting mode).

Storing a sample unit mass (Weighing input mode)
2 Press the RANGE key to enter the sample unit mass storing mode.
3 Select the number of samples using the RANGE key.
It may be set to 10, 25, 50 or 100.
Note A greater number of samples will yield more accurate
counting result.
4 Place a container (tare) on the weighing pan, if necessary.
Press the RE-ZERO key to cancel the weight (tare).
The number specified in Step 3 appears.
Example: 25 0
is displayed if 25 is selected in Step 3.

Weighing pan
Container(tare)

5 Place the number of samples specified on the pan.
In this example, 25 pieces.
6 Wait for the stabilization indicator to be displayed.
Press the PRINT key to calculate and store the unit mass.
Then the balance displays 25
and is set to count samples
with this unit mass. To improve the accuracy of the unit mass,proceed to Step 8.
Notes
If the balance judges that the mass of the samples is too lightto acquire accurate weighing, it displays an error requiring theaddition of more samples to the specified number.
Example: 50 appears, requiring 25 more samples. Add
25 samples and press the PRINT key. When the unit mass isstored correctly, the balance proceeds to the counting mode.

25 samples

To Step 8 when using
the ACAI function.

If the balance judges that the mass of the samples is too light (under
0.0001g) and cannot be stored as the unit mass, it displays lo .
The sample unit mass is stored in non-volatile memory, andis maintained even if the AC adapter is removed.

Counting operation
7 Place the samples to be counted on the pan.
Read the result and remove the samples from the pan.

BM series

27

Place samples
Counting result

Counting mode using the ACAI function
The ACAI is a function that improves the accuracy of the unit mass automatically by increasing
the number of samples as the counting process.
ACAI: Automatic Counting Accuracy Improvement
Proceed to Step 8 after storing a unit mass on the previous page.
8 If a few more samples are added, the processing
indicator turns on. To prevent an error, add three or
more. The processing indicator does not turn on if
overloaded. Try to add the same number of samples
as displayed.
9 The balance re-calculates the unit mass while theprocessing indicator is blinking. Do not touch thebalance or samples on the pan until the processing
indicator turns off.
10 Counting accuracy is improved when the processing
indicator turns off.
Each time the above operation is performed, a moreaccurate unit mass will be obtained. There is no
definite upper limit to the ACAI range for the numberof samples exceeding 100. Try to add the same
number of samples as displayed.

From Step 6 on
the previous page

Add a few more
samples.

The indicator turns
on at proper range.

The indicator blinks
during calculation.
The indicator turns
off after the unit
mass is improved.
Repeat11 Remove all the samples used in ACAI and proceedwith the counting operation using the improved unit
mass.

28

BM series

6.4. Percent Mode (%)
The percent mode displays the weight value in percentage compared to a 100% reference mass
and is used for target weighing or checking the sample variance.

Selecting the percent mode
1 Press the MODE key to select the unit % (Percent mode).
If the percent mode cannot be selected, refer to "5. Weighing Units".

Storing the 100% reference mass

2 Press the RANGE key to enter the 100% reference massstoring mode.
3 Place a container (tare) on the weighing pan, if necessary.
Press the RE-ZERO key to cancel the weight (tare).
The balance displays 100 0 % .

Weighing pan
Container(tare)

4 Place the sample to be set as the 100% reference mass on
the pan or in the container.
5 Press the PRINT key to store the reference mass.
The balance displays 100.00 % .

100% mass

Notes
The readability depends on the 100% mass.
BM-5, BM-5D
BM-252, BM-200
BM-300, BM-500
BM-20, BM-22
Readability
Readability
100% mass
100% mass
0.0100 g to 0.0999 g 1 %0.00100 g to 0.0099 g 1 %0.1000 g to 0.9999 g 0.1 %0.01000 g to 0.0999 g 0.1 %1.0000 g to
0.01 %
0.10000 g to
0.01 %
If the balance judges that the mass of the sample is too light(under 0.01g) to be used as a reference, it displays lo .
The 100% reference mass can be stored in the non-volatilememory and is maintained even if the AC adapter is removed.
6 Remove the sample.

Reading the percentage
7 Place a sample to be compared to the reference mass on
the pan. The displayed percentage is based on the 100%
reference mass.

BM series

29

Place sample
Percentage

6.5. Ionizer (Neutralization Device)
The BM series is equipped with four ionizer electrode units to neutralize static electricity from acharged weighing sample.
Neutralizing static electricity before weighing will improve stability, reducing errors.
Neutralizing ion : The discharge electrodes of the ionizer continuously generate bipolar ions by corona
discharge. Applying these ions to the weighing sample neutralizes the static charge.
Static electricity : In general, when the ambient humidity is less than 45% RH, nonconductors
such as powders, paper and plastics easily become charged with static
electricity. The influence of the static electricity may cause a weighing error ofseveral milligrams. The ionizer effectively neutralizes the electrical charge.

Operation
1 Place the sample to be weighed on the center(of the metallic circle) of the separation plate toneutralize the static charge.
2 Press the ION key to start the neutralization.
Themark and the LED blink.
The neutralization will stop after the preset timeof "Neutralization time (ion)" in the function
table (the factory setting is 3 seconds).
The readability of the BM-5, BM-5D, BM-20, BM-22 andBM-252 is switched to 0.1 mg while performing theneutralization.
Pressing the ION key during neutralization stops
the neutralization.

LED
Ionizer
SampleSeparation plate

Press
In neutralization
Weighing mode

Notes
Example: Display of BM-20
Keep the weighing sample away from the electrodes
while neutralizing. Placing the sample too close to theelectrodes may cause the sample to become charged.
Remove any obstacle between electrodes and the weighing sample.

6.5.1.

Maintenance of the Electrode Units

When using the ionizer for a long time, dust and stains may
stick to the electrodes. Clean them periodically to maintainperformance.
When needles of the electrodes are worn down andneutralization ability is not restored after cleaning them,
replace all four electrodes with new ones. The standard life ofan electrode unit is approximately 10000 hours.

Replacing the electrode units

Step 1
Step 2

Cleaning

1 Turn the electrode units 45 degrees counterclockwise andremove them from the ionizer.

Electrode needle
Electrode unit

2 Replace all four units with new ones.
Note Do not replace, remove and clean the electrodes while the ionizer is in operation as
there is a danger of electrical shock.
3 Turn the electrode units 45 degrees clockwise and insert them into the ionizer.
30

BM series

6.5.2.

Controlling the Ionizer Externally

It is possible to control the BM ionizer function by connecting the remote controller(AD-8922A) or the foot switch (AX-SW137-PRINT, AX-SW137-REZERO).
When specifying "on" to “AD-8922A control (8922)” in thefunction table (ionfnc 8922 on), the balance assigns thefunction of the ION key to the MODE key on the AD8922A.
Assign the ION key
to the MODE key on
the AD-8922A.
When specifying “External control input (e-5)” in “Ionizer function (ionfnc)”, the following
functions can be assigned to AX-SW137-PRINT (option) or AX-SW137-REZERO (option)
terminals.
Ionizer function

External control input

ionfnce-5 0

ionfnce-5 1

ionfnce-5 2

AX-SW137-PRINT AX-SW137-REZERO
PRINT key
RE-ZERO key
PRINT key
ION key
ION key
RE-ZERO key

Factory settings
By using aφ3.5 stereo plug MP-013LC (Marushin Electric Mfg. Co., Ltd.) or an equivalent product, you
can create your own switch.
(To use a switch, you need to solder theφ3.5 stereo plug and the switch that you obtain yourself. )External contact input terminal

Compatible plug: φ3.5 mm 3-pole stereo plug
MP-013LC or the equivalent

Example of external contact input terminal

External contact input circuit

Pin assignments
Pin No.
1
GND
2
RE-ZERO
3
PRINT

Description
External contact input
External contact input

When pin 1 and pin 3 or pin 1 and pin 2 are shorted 100 ms or longer, the switch can operate thebalance in the same way as the balance PRINT key or the RE-ZERO key, respectively.
AX-SW137-PRINT or AX-SW137-REZERO (optional foot switches sold separately) can be used.
BM series31

6.6. Monitoring the Clock and Environmental Sensors
In the weighing mode, the built-in clock and environmental sensors (temperature, humidity,
barometric pressure) can be monitored and temperature data can be output in the function
settings.

Specifications of the environmental sensors
SensorTemperature
Humidity
Barometric pressure

Resolution±1.5 °C±10 %±10 hPa

Measurement range
5 °C to 40 °C
0 % to 100 %300 hPa to 1100 hPa

Applicable range
5 °C to

40 °C

Notes
The environmental sensors are built into the balance casing. Therefore, these values are
not in accordance with the environmental condition.
Refer to "20. Specifications" for the balance operating conditions.

Operation

Weighing mode

Press the SELECT key in the weighing
mode. The current time, date and sensor
values (temperature, humidity, barometricpressure) are displayed for several seconds
in order. The balance returns to theweighing mode automatically.
When pressing the SELECT key
while the current data is displayed,
the display proceeds to the next
data.

Time
5 seconds
Date
5 seconds
Humidity
Environmental sensors
10 seconds

Barometric pressure
Temperature

Weighing mode

When pressing the CAL key
while the current data is displayed,
the balance returns to the weighing
mode.
Notes
When adjusting the built-in clock, refer to "10.7. Clock and Calendar Function".
When adding the time and date to the output data, refer to “Time/Date output (5-td)” of"10.2. Details of the Function Table".
When adding temperature data to the output data, refer to “Temperature output (5-tp)”of "10.2. Details of the Function Table".

32

BM series

6.7. Repeatability Test
Repeatability is an index of variation in weighing values when the same mass is repeatedly
loaded and unloaded. Standard deviation is generally used for the indicator of repeatability.
The repeatability test measures the internal mass 10 times and displays the standard deviation.
Use the repeatability test function to inspect the performance of the balance when changing theenvironment or when moving the balance to a new location.
Example: "Standard deviation = 0.2 mg" means that the results of repeated measurements of thesame mass fall within the range of ±0.2 mg at a frequency of about 68%.
Notes
When the password function is used, the repeatability test function is available only whenlogged in as an administrator ( AdmIN).
The repeatability test uses the internal mass. Therefore, the obtained standard deviation
may disagree with that of the repeatability of "20. Specifications". Regard the standard
deviation as a reference.
Model

Internal mass

BM-5, BM-5D

Approx.

5g

BM-20, BM-22

Approx.

20 g

BM-252, BM-200, BM-300, BM-500

Approx. 190 g

Example of BM-20
1 Press and hold the RANGE key (for approx. 4 seconds)
Weighing mode
until rep te5t is displayed, and then release
the key.

Press and hold(approx. 4 seconds)

2 When rep te5t is displayed, the measurement
is automatically started, "r"e"p blinks and themeasurement count (0 to 10) is displayed.
To cancel the current measurement,press the CAL key.

ReleaseCounter

Note Avoid vibration and breezes for
precise measurement during this test.

In measurement

3 At the end of the measurement,
the standard deviation of therepeatability is displayed.

ResultStandard deviation

Cancelor

4 Press the CAL key or PRINT key
to return to the weighing mode.

BM series

Weighing mode

33

7.

Response Adjustment

This function stabilizes the weight value by reducing the influence on weighing that is causedby drafts and/or vibration at the place where the balance is installed. The adjustment of thefunction can be performed by analyzing the environment automatically or hand-operation.
The state of the function has three stages as follows :Response indicator
Indicator Parameter Response
Stability
FAST
Cond 0
Fast response, Sensitive value
MID.
Cond 1
Slow response, Stable value
SLOW
Cond 27.1. Automatic Response Adjustment
This function automatically updates the response adjustment by analyzing the influence ofthe environment using the internal mass.
Press and hold(approx.
2 seconds)
1 Press and hold the MODE key (for approx. 2 seconds)
until RESPONSE is displayed, and then release the key.
2 The balance automatically sets the response characteristic.
Caution Do not allow vibration or drafts to affect thebalance during adjustment.
3 After automatic adjustment, the balance displays end ,returns to the weighing mode and displays the updated
response indicator for about thirty seconds.

ReleaseResultNotes
If the automatic response adjustment fails, the balancedisplays CH ng . Check the ambient conditions suchas breeze and vibration, also check the weighing pan.
Then, perform adjustment again. Press the CAL key
to return to the weighing mode.
If there is anything on the weighing pan, the balancedisplays CH e . Remove the substance from the pan.
Press the CAL key to return to the weighing mode.
If the automatic response adjustment is not helpful, try"7.2. Manual Response Adjustment".

34

BM series

7.2. Manual Response Adjustment
1 Press and hold the MODE key (for approx. 2 seconds)
until RESPONSE is displayed, and then release the key.
Press the MODE key again immediately.
2 Select a setting for the response adjustment using the
MODE key. Either FAST , MID. or SLOW can beselected.
3 The balance displays 1end1, returns to the weighing
mode and displays the updated response indicator for
about thirty seconds.

Notes
When the response adjustment is selected, the"Condition (Cond)" parameter of "Environment,
Display (ba5fnc)" in the function table will bechanged accordingly as shown below.
Display
FAST
MID.
SLOW

Cond(Condition)
0
1
2

The response adjustment setting can be changedby the "Condition (Cond)" parameter of"Environment, Display (ba5fnc)" in the function
table. For details, refer to “10. Function Table”.

BM series

35

Press and hold(approx. 2 seconds)

Release andpress again immediately

Select a parameter
Release and wait

Result8.

Calibration

8.1. Calibration Group
Since the balance's resolution is high, weighing values may change due to gravity and daily
environmental changes. It is necessary to perform calibration (sensitivity adjustment) with the weightin order to keep the weighing values from changing even if gravity or the environment changes.
Calibrate the balance if it is installed for the first time or relocated, or when the weighing values
change significantly in daily inspection.
Calibration means to adjust the weighing value of the balance using the reference weight orinternal mass. Calibration test means to weigh with the reference weight and compare how muchthe result deviates from the reference value. (Calibration test does not perform adjustment.)

Calibration (Sensitivity adjustment)
Automatic self calibration ------------------------- Automatically adjusts the balance using the internal massdepending on the temperature change of the operating
environment.
Calibration using the internal mass ----------- Using the internal mass, adjusts the balance with a single touch.
Calibration using an external weight ---------- Using an external weight, adjusts the balance.

Calibration test（Sensitivity check）
Calibration test using the internal mass ------ Checks the accuracy of weighing using the internal mass andoutputs the result.
*No adjustment is made.
Calibration test using an external weight ---- Checks the accuracy of weighing using an external weight(target weight) and outputs the result.
*No adjustment is made.
Notes
Do not allow vibration or drafts to affect the balance during calibration.
When using the data output for GLP / GMP using the RS-232C interface, set "GLP output (info)" of
the function table. Refer to "10. Function Table". The time and date can be added to the GLP report.
If the time and date are incorrect, refer to "10.7. Clock and Calendar Function" and adjust them.
Calibration test is available only when "GLP output (info)" is set to "1" , "2" or "3".
The calibration and calibration test data can be stored in memory. When using memory,set "Data memory (data)" of the function table. Refer to "12. Data Memory" for details.

Note on using an external weight
The accuracy of an external weight can influence the accuracy of weighing.
Select a weight for calibration and calibration test from the following table.
Model
BM-5
BM-5D
BM-20
BM-22
BM-252
BM-200BM-300BM-500

1g
1g
1g
1g
10 g
50 g
50 g
50 g

2g
2g
2g
2g
20 g
100 g
100 g
100 g

Usable weight
5 g*
5 g*
5g
10 g
5g
10 g
50 g
100 g
200 g*
200 g*
300 g
200 g*
300 g

Adjustable range

20 g*
20 g*
200 g*-3.000 mg to +3.099 mg-15.00 mg

to +15.99 mg-30.0 mg

to +30.9 mg

500 g

Bold type*: Factory settings. The weight value can be adjusted within the range above.
36
BM series

About the internal mass
The internal mass may change due to corrosion or other damage caused by the operating
environment, or due to aging. Check the internal mass periodically and correct the internal mass
value if necessary. Refer to "8.7. Correcting the Internal Mass Value".

DisplayThis indicator means that the balance is measuring calibration data.
Do not allow vibration or drafts to affect the balance while the indicator isdisplayed.

8.2. Automatic Self Calibration
Automatic self calibration due to changes in temperatureThis function automatically calibrates the balance when the balance detects an ambient
temperature change. If GLP output is selected in the function table, the balance outputs thecalibration report or stores the data in memory. Automatic self calibration functions even if thedisplay is turned off (standby mode). Refer to "9.1. Permit or Inhibit" for the operation.

CautionTo maintain the calibrated state, keep the weighing pan clear while not in use.
If something is on the weighing pan, the balance decides that it is in use and does not
perform automatic self calibration.
When performing a long term weighing with something placed on the pan, installing thebalance in a system or considering the importance of continuous data, turn off automatic
self calibration.
Notes
When turning on the balance with nothing on the pan, if a sample heavier than 0.5 g isplaced on the pan, the balance detects the state that a sample is placed on the pan anddoes not perform automatic self calibration.
Indicates that the balance detects changes in ambient temperature and automatic
self calibration will start. If the balance is not used for several minutes with thisindicator ( ) blinking, the balance performs automatic self calibration. The blinking
duration depends on the operating environment.
Indicates that the balance is measuring calibration data. Do not allow vibration ordrafts to affect the balance while this indicator is displayed. After calibration, thebalance returns to indicate the previous display.
The balance can be used while the indicator blinks. But, to maintain the accuracy, stopusing the balance and confirm that there is nothing on the pan and allow the balance toperform self calibration.

BM series37

8.3. Calibration Using the Internal Mass
This function calibrates the balance using the internal mass.
The only operation required is to press the CAL key.
1 Connect the AC adapter and warm up the balance for atleast one hour with nothing on the weighing pan.
2 Press the CAL key to display Cal in .
3 The balance performs calibration using the internal mass.
Do not allow vibration or drafts to affect the balance.
4 If GLP output is set, glp is displayed, the calibration report is
output to the RS-232C interface and is stored in memory. Refer to"GLP output (info)" and "Data memory (data)" of the function
table in "11.2. GLP Report" and "12. Data Memory".
end is displayed after calibration.

GLP output

5 The balance will automatically return to the weighing mode after calibration.
6 Confirm weighing accuracy using calibration test (CC in).

38

BM series

8.4. Calibration Test Using the Internal Mass
This function checks the accuracy of weighing using the internal mass.
Calibration test does not perform adjustment.
1 Connect the AC adapter and warm up the balance
for at least one hour with nothing on the weighingpan.
2 Press and hold the CAL key until
displayed, and then release the key.

CC inPress and holdisRelease

3 The balance measures the zero point.
Prevent vibration and drafts to affect the balance.
4 The measured zero point data is displayed.

5 The balance measures the internal mass.
Prevent vibration and drafts to affect the balance.
6 The value of the internal mass is displayed.
The normal range of the value is as follows:
Model
BM-5, BM-5D
BM-20, BM-22
BM-252, BM-200
BM-300, BM-500
7Internal mass
5.00000 g
20.00000 g

Normal range±0.02 mg±0.02 mg200.0000 g±0.2 mg
GLP output

glp

is displayed and the calibration test report is output
to the RS-232C interface and is stored in memory. Refer to"GLP output (info)" and "Data memory (data)" of thefunction table.
end is displayed after the calibration test.

8 The balance automatically returns to the weighing mode.

BM series39

8.5. Calibration Using an External WeightThis function calibrates the balance using an external weight.
Note Automatic self calibration (due to changes in temperature) is enabled in the factory
setting. Therefore, even after calibration using an external weight, the balance may
perform automatic self calibration whenever it detects changes in temperature.
When considering the importance of continuous data or managing the balance using theexternal weight only, refer to "9.1. Permit or Inhibit" to set the function switch to “inhibit”
1 Connect the AC adapter and warm up the balance for atleast one hour with nothing on the weighing pan.
2 Press and hold the CAL key until
displayed, and then release the key.

CaloutPress and holdis

3 When Cal 0 is displayed, proceed as follows:
If you want to change the calibration weight, press
the RANGE key and proceed to Step 4.
If you use the calibration weight value stored in
the balance, proceed to Step 5.

New value

Select a weight

4 Specify the calibration weight value as follows:
RANGE key .......... To switch blinking digits.
RE-ZERO (+)key..... To select the calibration weight or adjust the
MODE (-)key
calibration weight value. Refer to page 36.
............
PRINT key
To store the new calibration weight value.
Even if the AC adapter is removed, thedata is maintained in non-volatile memory.
CAL key ............... To cancel the operation and return to
Cal 0 .
5 Confirm that there is nothing on the pan and press the
PRINT key. The balance measures the zero point.
Do not allow vibration or drafts to affect the balance.
The balance displays the calibration weight value.

ReleaseAdjust the value

Example:New value
100.0012 g

6 Place the displayed calibration weight on the pan and press
the PRINT key. The balance measures the calibration
weight. Do not allow vibration or drafts to affect the balance.
7

Place the weightend

is displayed.
Remove the weight from the pan.

8 If GLP output is set, glp is displayed and the calibration
report is output and stored. Refer to "GLP output (info)" and"Data memory (data)" of the function table in "11.2. GLP Remove the weight
Report" and "12. Data Memory".
9 The balance will automatically return to the weighing mode.
GLP output
10 Place the calibration weight on the pan and confirm that thevalue displayed is correct. If it is not within the range, checkthe ambient conditions such as breeze and vibration, and also
check the weighing pan. Then, repeat Steps 2 to 10.
40

BM series

8.6. Calibration Test Using an External WeightThis function checks the accuracy of weighing using an external weight.
This is available only when the "GLP output (info)" parameter is set to "1", "2" or "3".
Calibration test does not perform adjustment.
1 Connect the AC adapter and warm up the balance for at least
one hour with nothing on the weighing pan.

Press and hold

2 Press and hold the CAL key until CC out is displayed,
and then release the key.
3 When CC 0 is displayed, proceed as follows:
If you want to change the target weight, press the RANGE
key and proceed to Step 4. A list of usable weights is on
page 36.
If the current target weight value is used, proceed to Step 5.
4 Specify the target weight value as follows:
RANGE key ........ To switch blinking digits.
RE-ZERO (+)key ... To select the target weight or adjust the
MODE (-)key
weight value. Refer to page 36.
PRINT key .......... To store the new target weight value.
Even if the AC adapter is removed, thedata is maintained in non-volatile memory.
.............
CAL key
To cancel the operation and return to
CC 0 .
5 Confirm that there is nothing on the pan and press the
PRINT key. The balance measures the zero point.
Do not allow vibration or drafts to affect the balance.
The balance displays the target weight value.

6 Place the displayed target weight on the pan and press
the PRINT key. The balance measures the target weight.
Do not allow vibration or drafts to affect the balance.

New value

Select a weight

Adjust the value

Example:New value
100.0012 g

Place the weightend

7

is displayed.
Remove the weight from the pan.

8

glp is displayed and the calibration test report is output andstored. Refer to "GLP output (info)" and "Data memory(data)" of the function table in "11.2. GLP Report" and "12.

Data Memory".

GLP output

9 The balance will automatically return to the weighing mode.

BM series

Remove the weight

41

Release8.7. Correcting the Internal Mass Value
The balance can correct the internal mass
value within the range shown below. Thisfunction corrects the internal mass value to
conform to an external weight. The correctedmass value is maintained in non-volatilememory even if the AC adapter is removed.
The internal mass value is corrected as follows:
Model

BM-5, BM-5D
BM-20, BM-22
BM-252, BM-200, BM-300, BM-500

200 g

199.9994g

The same mass
Correct the internal mass
by +0.6 mg at 200 g.
Calibrate with thisinternal mass

200 g

200.0000 g

Corrected value

Correction reference value Correction range
5.00000 g±1.5 mg
20.00000 g±1.5 mg200.0000 g±1.5 mg

Example: With the BM-300, 200.0000 g is corrected by +0.6 mg (200.0000 g). When performing a+0.6 mg correction with a 100 g external weight, the correction value will be +1.2 mg inaccordance with the reference value of 200 g.
1 Perform calibration using the internal mass. Weigh an external
weight and get the correction value.

Standby

2 Press the ON:OFF key to turn the display off.
3 While pressing and holding the PRINT key and the RANGE key,press the ON:OFF key. p5 is displayed.

Press and hold Press

4 Press the PRINT key to display the function switches. Set
Function switches
the function table switch and internal mass correction switch
to "1" as shown to the right using the following keys.
RANGE key.......... To select the blinking digit.
RE-ZERO key....... To change the value of the blinking digit.
PRINT key............ To store the new value and return to the weighing mode.
CAL key ............... To cancel the current operation.
Internal mass correction switch
Weighing
mode
Function table switch
Press and hold(approx. 2 seconds)
5 Press and hold the RANGE key (for approx. 2 seconds) to enter
Function table
the function table and release the key when ba5fnc is displayed.
6 Press the RANGE key several times to display C5 in .
Internal mass correction
7 Press the PRINT key.
Correct the internal mass value using the following keys.
RE-ZERO (+)key ....To increase the value.
MODE (-)key ........To decrease the value.
PRINT key...........To store the new value and display the next
Corrected valuemenu item of the function table.
CAL key ............To cancel the current operation and display
the next menu item of the function table.
8 Press the CAL key to return to the weighing mode.
9 Press the CAL
internal mass.

key to calibrate the balance using the
Weighing mode

10 Check that the correction has been performed properly with theexternal weight. If the value is incorrect, repeat the correction.
42

Perform calibration
using the internal mass
BM series9.

Function Switch and Initialization

9.1. Permit or Inhibit
The balance stores parameters that must not be changed unintentionally.
Example: Calibration data for accurate weighing, Data for adapting to the operating environment,
Control data for the RS-232C interface.
The balance is equipped with five switches for the purpose of protecting parameters as shown above.
Each switch can select either "permit" or "inhibit". "Inhibit" protects parameters against
unintentional operations.
In addition to the above, when using balances with software version 1.660 or later, the password
function can be used to restrict calibration functions.
1 Press the ON:OFF key to turn the display off.
2 While pressing and holding the PRINT key and the RANGE key,press the ON:OFF key to display p5 .
3 Press the PRINT key. Then the balance displays the function switches.
4 Specify the switches using the following keys.
RANGE key........... To select the blinking digit.
RE-ZERO key........ To change the parameter of the selected switch.
0 To inhibit changes. (Cannot be used.)
1 To permit changes. (Can be used.)............
PRINT key
To store the new parameter and return to the weighing mode.
CAL key ............... To cancel the operation ( Clr is displayed ). To return to the weighing
mode, press the CAL key once again.
(The display shown left indicates the factory settings)
Function table0 To inhibit changes to the function table.
1 To permit changes to the function table.
Calibration using the internal mass
0 Software ver. 1.00 to 1.64 To inhibit calibration using the internal mass.
Software ver. 1.660 or later pA55 0
To inhibit calibration using the internal mass.
pA55 1,2 To inhibit calibration using the internal mass when
See Note 1. logged in as a user (U5ER) or a guest (GUE5T).
1 To permit calibration using the internal mass.
Calibration using an external weight0 Software ver. 1.00 to 1.64 To inhibit calibration using an external weight.
Software ver. 1.660 or later pA55 0
To inhibit calibration using an external weight.
pA55 1,2 To inhibit calibration using an external weight when
See Note 1. logged in as a user (U5ER) or a guest (GUE5T).
1 To permit calibration using an external weight.
Automatic self calibration (for variation of ambient temperature)
0 To inhibit automatic self calibration.
1 To permit automatic self calibration.
Internal mass correction
0 To inhibit correction.
1 To permit correction.
Note 1: The operation is permitted when logged in as an administrator (BM series43).

9.2. Initializing the BalanceThis function restores the following parameters to the factory settings.
Calibration data
Function table (excluding the time and date)
Sample unit mass value (counting mode),
100% reference mass value (percent mode)
The data that is stored in the balance using the data memory function
External weight value
Function switch settings ("9.1. Permit or Inhibit")
Liquid density and temperature in the density mode
Note Be sure to calibrate the balance after initialization.

1 Press the ON:OFF key to turn the display off.
2 While pressing and holding the PRINT key and theRANGE key, press the ON:OFF key to display
p5 .

Press and hold Press

3 Press the RANGE key to display Clr .

4 Press the PRINT key to display Clr no .
To cancel the operation, press the CAL key.

5 Press the RE-ZERO key to display Clr go .

6 Press the PRINT key to initialize the balance.
The balance will automatically return to the weighing mode.

44

BM series

10. Function Table
The function table reads or rewrites the parameters that are stored in the balance.
These parameters are maintained in non-volatile memory, even if the AC adapter is removed.
The function table menu consists of two layers. The first layer is the "Class" and the second layer
is the "Item".

10.1. Setting the Function Table
Display symbol and keys
The symbol " " indicates that the parameter displayed is in effect.
When pressed and held (for approx. 2 seconds) in the weighing mode, enters thefunction table mode.
Selects the class or item in the function table mode.
Changes the parameter.
When a class is displayed, enters an item in the class.
When an item is displayed, stores the new parameter and displays the nextclass.
When an item is displayed, cancels the new parameter and displays the nextclass.
When a class is displayed, exits the function table mode and returns to theweighing mode.

Setting procedure

1 In the weighing mode, press and hold the RANGE key (for approx. 2 seconds) until ba5fnc isdisplayed, and then release the key.
2 Press the RANGE key to select a class.
3 Press the PRINT key to enter the class.
4 Press the RANGE key to select an item.
5 Press the RE-ZERO key to select a parameter for the selected item.
6 Repeat Steps 4 and 5 to select other items of the class.
7 To store the parameters of the selected class, press the PRINT key.
Then the next class is displayed.
To cancel the current operation, press the CAL key. Then the next class is displayed.
8 To specify parameters for another class, proceed to Step 2.
To finish the setting, press the CAL key to return to the weighing mode.

BM series

45

Setting example

This example sets the "Data memory (data)" parameter to "1" (To store the weighing data) and the"Interval time (int)" parameter to “5" (1 minute).
Weighing mode
Start
Step 1Press and hold (for approx. 2 seconds)
Step 2Press several times

Class

Item
"Data memory"

Step 3

Step 4Press several times

Step 5Press 2 times

Step 4

Step 5Press 5 times

Parameter"Stores the weighing data"

Item

Item
"Interval time"

Parameter"1 minute"

Step 7

Step 8FinishWeighing mode46

BM series10.2. Details of the Function Table
Class

Item and Parameter
Description
0 Fast response, sensitive value FAST
Cond
Can be changed by
1
MID.
response adjustment.
Condition
2 Slow response, stable value SLOW
0 Stable range is ±1 digit
The stabilization indicator
5t-b
1±2 digit #1 illuminates when the display
Stability band width
fluctuation is within the range.
2 Stable range is ±3 digits
off OFF
ploc
Display lock function to measure thevolume dispensed from the pipette.
Display lock function
on ON
0 OFF
ba5fnc1 Normal
trc
Keeps zero display by tracking
Environment
zero drift.
Zero tracking
2 Strong
Display
3 Very strong
0 5 times/second
5pd
Period to refresh the display
Display refresh rate
1 10 times/second
0 Point (.)
pnt
Decimal point format
Decimal point
1 Comma (,)
off OFFp-on
Turns on the weighing mode display
when the AC adapter is connected.
Auto display-ON
on ON
off OFFbeep
Sounds a beep when a key istouched.
Beepon ON
Cl adj
The time and date are added toRefer to "10.7. Clock and Calendar Function"
the output data.
Clock
Accepts the PRINT key only
0 Key mode
when the display is stable.
Outputs data when the display is
1 Auto print mode A
Reference = zerostable and conditions of ap-p,
prt
ap-b and the reference value areprint mode B
Data output mode
2 AutoReference = last stable value met.
With data 0, outputs data
mode /
3 Stream
continuously; with data 1, uses
Interval modeinterval memory.
dout
0 Plus only
Displayed value > Reference
Data output ap-p
1 Minus only
Displayed value < Reference
Auto print polarity
2 BothRegardless of displayed value
010
digitsap-b
Difference between reference
value and displayed value
1100
digitsAuto print
difference#2
2 1000 digits
data
Data memory

0 Not used
items:
1 Stores the weighing data Relatedprt, int, d-no, 5-td, info
2 Stores the calibration data
: Factory settings.

#1 The unit of readability is digit.
Example: If 1 mg display is selected using the RANGE key for the BM-300, 1 mg is one digit.
#2 Usable readability of the balance is one digit.
Example: In gram display, one digit is 0.01 mg for the BM-252 and 0.1 mg for the BM-300.

BM series

47

ClassItem and Parameter
DescriptionEverymeasurement0
1 2 seconds
2 5 seconds
3 10 seconds
Interval time in the interval
int
4 30 seconds
memory mode when using
Interval time
prt 3,, data 1
5 1 minute6 2 minutes
7 5 minutes
8 10 minutes
No output
off
d-no
Refer to "12. Data Memory"
Data number output on Output
0 No output
Selects whether or not the time or
1 Time only
5-td
date is added to the weighting
data. Refer to "10.7. Clock andTime/Date output
2 Date only
dout
Calendar Function" for details.
3 Time and date
Data output
off No output
5-id
Selects whether or not the ID
number is output.
ID number output
on Output
off No pause
pU5e
Selects the data output interval.
Data output pause on Pause (1.6 seconds)
off Not used
at-f
Selects whether or not automatic
feed is performed.
Auto feedon Used0 No output
Refer to "11. ID Number and
GLP Report" for details.
1 AD-8121 format
info
GLP output
2 General (balance clock data) #3 Available for balances with software
version 1.660 or later.
3 General (external device clock data) #3
off Not usedar-d
Adjusts zero automatically after
data is output
Zero after output
on Usedoff Not output
5-tp
Adds temperature to data output
Temperature output
on Output
0
600 bps
11200 bps
22400 bps
bp5
Baud rate
34800 bps
49600 bps
5 19200 bps
0 7 bits, evenbtpr
1 7 bits, odd
5ifData bit, parity bit
2 8 bits, none
Serialinterface
0 CR LF
Crlf
CR: ASCII code 0Dh
Terminator
LF: ASCII code 0Ah
1 CR
0 A&D standard format
1 DP format
2 KF format
type
Refer to "10.5. Description of
the Item "Data Format" ".
Data format
3 MT format

Caution

4 NU format
5 CSV format: Factory settings.
The balance may not transmit the data completely at the specified refresh rate, dependingon the baud rate or data added to the weighing data such as time, date and ID number.
48

BM series

Class5if
Serialinterface

Item and Parameter
off No limitt-Up
Timeout
on 1 second
off No output
erCd
AK, Error codeon Output
0 Water temperature
ldin
Liquid density input
1 Liquid density

d5 fncDensityfunction
Unit
Unit
C5 in
Internal mass correction
id
ID number setting

Description
Selects the wait time to receive
a command.
AK: ASCII code 06h
Available only when density
mode is selected

Refer to "5. Weighing Units".
Displayed only when the internal mass value correction
switch is set to 1. Refer to "8. Calibration ".
Refer to "11. ID Number and GLP Report".

0 3 seconds
1 10 seconds
Refer to "6.5. Ionizer".
2 Manual operation (max. 10 min.)off The ION key is not used.
8922
AD8922A control
on Assigns the ION key to the MODE key on AD-8922A.
0 Assigns the PRINT key and RE-ZERO key.
e-5
1 Assigns the PRINT key and ION key.
External control input
2 Assigns the ION key and RE-ZERO key.
ion
Neutralization time

ionfncIonizerfunction

door
off Not used
d-dt
Refer to "6.1. Basic Operation"
Door sensor
Door sensor
on Usedfunction0 Not used
locfncpa55#4
1 Used (Limits weighing operations) Refer to "15. Password
Password
Function”.
Passwordfunctionfunction
2 Used (Allows basic weighing)ADMIN

loc no.
Password

Password input by the administrator

U5eR 01 Password input by user 1||

U5eR10 Password input by user 10#5: Factory settings.
#4 Only “Not used (0)” and “Used (1)” are available for balances with software version 1.50 to 1.64.
All the parameters are available for balances with software version 1.660 or later.
#5 Available for balances with software version 1.660 or later.
For balances with software version 1.50 to 1.64, only the password input by the administrator isavailable.

10.3. Description of the Class "Environment, Display"
Condition ( Cond )Cond 0This parameter is for sensitive response to the fluctuation of a mass value. Used for
powder target weighing, weighing a very light sample or when quick response weighing
is required. After setting, the balance displays FAST .

Cond 2This parameter is for stable weighing with slow response. Used to prevent a weightvalue from drifting due to vibration or drafts. After setting, the balance displays SLOW .
In automatic response adjustment, this parameter is selected automatically.

Note
BM series49

Stability band width ( 5t-b )This item controls the width to regard a mass value as a stable value. When the fluctuation persecond is less than the parameter, the balance displays the stabilization indicator and outputs orstores the data. The parameter influences the "Auto print mode".
5t-b 0 This parameter is used for sensitive response of the stabilization indicator. Used forexact weighing.
5t-b 2 This parameter ignores slight fluctuations of a mass value. Used to prevent a mass
value from drifting due to vibration or drafts.

Display lock function ( ploc )This function is used to lock the display when measuring the volume dispensed from the pipette.
With "Display lock function is used (ploc on)" selected in the function table, when the liquid isdispensed into the weighing bottle from the pipette and a stable weighing value is obtained, thebalance calculates an average value and displays the result (locked).
When using this function for the measurement of a small volume, the influence of liquid
evaporation can be reduced.
Caution Even if the weighing bottle (evaporator trap) to reduce the water evaporation isused, at least 0.05 mg (0.05 ) evaporation will occur.
When canceling this function, press the RE-ZERO key.
Blinking processing indicator

Processing indicator
Stabilization indicator
Calculating

Locked result

Zero tracking ( trc )This function tracks zero point drift caused by changes in the environment and stabilizes the zero
point. When the weighing data is only a few digits, turn the function off for accurate weighing.
trc 0
The tracking function is not used. Used for weighing a very light sample.
trc 1
The normal tracking function is used.
trc 2
The strong tracking function is used.
trc 3
The very strong tracking function is used. Used for stable zero display.

Display refresh rate ( 5pd )The periodic time to refresh the display. This parameter influences "Baud rate", "Data output
pause" and the data output rate of "Stream mode".

Decimal point ( pnt )The decimal point format can be selected.

Auto display-ON ( p-on )When the AC adapter is plugged in, the display is automatically turned on without pressing the
ON:OFF key, to display the weighing mode. Used when the balance is built into an automatedsystem. One hour warm up is necessary for accurate weighing.

50

BM series

10.4. Description of the Item "Data Output Mode"
The parameter setting of "Data output mode (prt)" applies to the performance when the "Datamemory (data)" parameter is set to "1" (to store the weighing data) and when the data istransmitted using the RS-232C interface.

Key mode
When the PRINT key is pressed with the stabilization indictor turned on, the balance outputs orstores the weighing data and the display blinks one time.
Required setting
dout
prt 0
Key mode

Auto print modes A and B
When the displayed value is stable and the conditions of "Auto print polarity", "Auto print
difference" and the reference value are met, the balance outputs or stores the weighing data.
When the PRINT key is pressed with the stabilization indictor turned on, the balance outputs orstores the data and the display blinks one time.

Auto print mode A
ExampleRequired setting

For weighing each time a sample is placed and removed, with "ar-d" setto "1" (to adjust zero after the data is output).
dout
prt 1
Auto print mode A (reference = zero)
dout
ap-p
Auto print polarity
dout
ap-b
Auto print difference
dout
ar-d on Zero after output

Auto print mode B
ExampleRequired setting

For weighing while a sample is added.
dout
prt 2
Auto print mode B (reference = last stable value)
dout
ap-p
Auto print polarity
dout
ap-b
Auto print difference

Stream mode
The balance outputs the weighing data continuously regardless of the display condition. When thedisplay refresh rate is set to 5 times / second (5pd 0), the data output rate is also set to the same
5 times / second. The display does not blink in this mode. The interval memory mode is used
when the "Data memory (data)" parameter is set to "1" (to store the weighing data).
ExampleFor monitoring data on a computer.
Required setting
dout
prt 3
Stream mode
dout
data 0 Data memory function is not used
ba5fnc 5pd
Display refresh rate
5if
bp5
Baud rate
Caution The balance may not transmit the data completely at the specified refresh rate, dependingon the baud rate or data added to the weighing data such as time, date and ID number.

Interval mode
The balance outputs the weighing data periodically regardless of the display condition and thedisplay blinks one time. When the "Data memory (data)" parameter of "Data output (dout)" is set
to "1" (to store the weighing data), the weighing data is periodically stored in memory.
Pressing the PRINT key starts output and pressing the PRINT key again during output stops the output.
ExampleFor periodical weighing without a personal computer command and to
output all of the data, to a computer, at one time.
Required setting
dout
prt 3
Interval mode
dout
data 1
Data memory function is used
dout
intInterval time
BM series51

10.5. Description of the Item "Data Format"
A&D standard format

5if type 0This format is used when the peripheral equipment can receive the A&D format.
With an AD-8121B printer, use MODE 1 or 2. With an AD-8127 printer, use the external key
printing mode, manual printing mode, auto printing mode or interval printing mode.
This format consists of fifteen or sixteen characters excluding the terminator.
A header of two characters indicates the balance condition.
The polarity sign is placed before the data with the leading zeros. If the data is zero, the plus sign is applied.
The unit, consisting of three characters, follows the data.
HeaderData

Unit

Stable header
Unstable header
Overload header
HeaderTerminator

Stable header of counting mode

8-numerical character data

Unit

Terminator

DP (Dump print) format

5if type 1

This format is used when the peripheral equipment cannot receive the A&D format.
With an AD-8121B printer, use MODE 3. With an AD-8127 printer, use the dump printing mode.
This format consists of sixteen characters excluding the terminator.
A header of two characters indicates the balance condition. No overload header is used.
The polarity sign is placed before the data, with spaces in place of leading zeros, if the data is notzero or overloaded.
The unit, consisting of three characters, follows the data.
HeaderData

Stable header
Unstable header

Unit

Terminator

Stable header of counting mode

KF format

5if type 2

This is the Karl-Fischer moisture meter format and is used when the peripheral equipment can
only communicate using this format.
This format consists of fourteen characters excluding the terminator.
This format has no header characters.
The polarity sign is placed before the data, with spaces in place of leading zeros, if the data is notzero or overloaded.
This format outputs the unit only for a stable value.
Data

Unit Terminator
Stable value
Unstable value

52

BM seriesMT format

5if type 3

This format is used when the peripheral equipment of other manufacturer is connected. Please
note that the connection is not guaranteed.
A header of two characters indicates the balance condition.
The polarity sign is used only for negative data.
The weighing data uses spaces in place of the leading zeros.
The character length of this format changes dependent upon the unit
HeaderData

Unit

Terminator

Stable header
Unstable header
Overload header
Stable header (When data is output using the PRINT key)

NU (numerical) format

5if type 4

This format outputs only numerical data.
This format consists of ten characters excluding the terminator.
The polarity sign is placed before the data with the leading zeros. If the data is zero, the plus sign
is used.
Data

Terminator

CSV format

5if type 5

This format separates the data of A&D standard format and the unit by a comma ( , ).
This format outputs the unit even when the data is overloaded.
When a comma ( , ) is selected for the decimal point, the separators are set to semicolon ( ; ).
When the ID number, data number, time and date are added in "Data output (dout)" of thefunction table, outputs ID number, data number, date, time and weighing data in this order andseparates each item by a comma and treats all the items as one group of data.
ID number

Data number

Date

Time

Weighing data

Note When the balance is connected to a personal computer via the USB interface, theID number, data number, time and date cannot be added to the weighing data.

ID numberdout 5-id on

The number to identify a specific balance.
This format consists of eight characters excluding the terminator.

BM series

53

Data number

dout d-no on

This format outputs the data number just before the data is transmitted using the RS-232C
interface.
This format consists of six characters excluding the terminator.
When CSV format (5if type 5) is selected, the period ( . ) is replaced with a comma ( , ).
Data number

Terminator

Datedout 5-td 2 or 3

Timedout 5-td 1 or 3

The date output order can be changed in " Time/Date output (5-td)" and "Clock (Cl adj)".
This format outputs the year in a four-digit format.

This format outputs the time in a 24-hour format.

Temperature

dout 5-tp on

This format outputs the temperature. The unit is "C".
Note Humidity and barometric pressure are not output.

54

BM series10.6. Data Format Examples
StableUnstable

Overload

Positive error

Overload

Negative error

Space,
Carriage Return,Line Feed,

BM series

ASCII 20h
ASCII 0Dh
ASCII 0Ah

55

Units
A&D

D.P.

KF

MT

g
mg
Counting mode
Percent mode
Ounce (Avoir)
Troy Ounce
Metric Carat
Momme
Pennyweight
Grain
Tael (HK general, Singapore)
Tael (HK, jewelry)
Tael (Taiwan)
Tael (China)
Tola (India)
MessghalDensitySpace, ASCII 20h

56

BM series

10.7. Clock and Calendar Function
The balance is equipped with a clock and calendar function. When
"GLP output (info)" and "Time/Date output (5-td)" are used, the timeand date can be added to the output data. The operation is as follows:
Press and hold(approx.
2 seconds)
Operation
1 In the weighing mode, press and hold the RANGE key (for approx.
2 seconds) until ba5fnc is displayed, and then release the key.
Press several times
2 Press the RANGE key several times to display Cl adj .
3 Press the PRINT key to enter the time and date setting mode.

Checking the current time
4 The current time is displayed with all the digits blinking.
To change the time, press the RE-ZERO key and proceed to Step 5.
When the time is correct, press the RANGE key and proceed to Step 6.
To exit the mode, press the CAL key and proceed to Step 8.

The current
time

Storing a new time
5 Set the time in a 24-hour format using the following keys.
RE-ZERO (+)key ... To increase the value by one.
MODE (-)key ....... To decrease the value by one.
New time
RANGE key........ To select the digit to change the value.
.........
PRINT key
To store the new time and proceed to Step 6.
Store new time.............
CAL key
To cancel the operation and proceed to Step 6.

Checking the current date
6 The current date is displayed with all the digits blinking.
To change the display order of year (y), month (m) and day (d),press the MODE key. The date is output in the order as specified.
To change the date, press the RE-ZERO key and proceed to Step 7.
When the date is correct, press the CAL key and proceed to Step 8.
To change the time again, press the RANGE key and proceedback to Step 4.

The current
date

Storing a new date
7 Set the date using the following keys.
RE-ZERO (+)key ...To increase the value by one.
MODE (-)key ........To decrease the value by one.
New date
RANGE key ........To select the digits to change the value.
Store new date
PRINT key ..........To store the new date and proceed to Step 8.
CAL key .............To cancel the operation and proceed to Step 8.

Quitting the operation
8 The balance displays the next menu item of the function table.
Press the CAL key to exit the mode and return to the weighing mode.
Note Do not enter invalid values such as non-existing time and date in this function.
When the clock backup battery has been depleted, the balance displays rtc pf .
Under this condition, press any key and set the time and date. The dead battery
only affects the clock and calendar function. Even so, the function works normally
as long as the AC adapter is connected to the balance.
BM series5711. ID Number and GLP Report
The ID number is used to identify the balance when Good Laboratory Practice (GLP) or Good
Manufacturing Practice (GMP) is used.
The output format for GLP/GMP compliant report is selected in "GLP output (info)" of the function
table and can be output to a personal computer or printer using the RS-232C serial interface.
The GLP/GMP compliant report includes the balance manufacturer, model, serial number, ID
number, date, time and space for signature. The calibration report and the calibration test report
include the weight used and the result.
The balance can output the following reports for GLP / GMP using the RS-232C serial interface.
"Calibration report" of the automatic self calibration and the calibration using the internal mass.
"Calibration report" of the calibration using an external weight.
"Calibration test report" of the calibration test using the internal mass.
"Calibration test report" of the calibration test using an external weight.
"Title block" and "End block" for the weighing data.
Calibration report and calibration test report can be stored in memory and several reports can be
output at the same time. Refer to "12. Data Memory" for details.
The ID number is maintained in non-volatile memory even if the AC adapter is removed.
Refer to "10.7. Clock and Calendar Function" for checking and storing the time and date.
When an AD-8127 printer is connected to the balance and outputs the GLP report, the time anddate can be added to the report using the clock function of the printer. (Available for balances with
software version 1.660 or later) This is very useful for managing the time and date using the AD8127 password lock function to prevent them from being falsified.
To output the GLP/GMP compliant report, set the AD-8127 printer to the dump printing mode.

11.1. Setting the ID Number
1 Press and hold the RANGE key (for approx. 2 seconds) until ba5fnc is displayed, and thenrelease the key.
2 Press the RANGE key several times to display

id .

3 Press the PRINT key. Set the ID number using the following keys.
RE-ZERO key .....To set the character of the digit selected.
Refer to the display character table shown below.
........
RANGE key
To select the digit to change the character.
..........
PRINT key
To store the new ID number and display ba5fnc .
CAL key.............To cancel the new ID number and display ba5fnc .
4 When ba5fnc is displayed, press the CAL key to return to the weighing mode.
Display character table

58

BM series11.2. GLP Report
To output the GLP/GMP compliant report to an AD-8121B printer, AD-8127 printer or to apersonal computer, set the "GLP output (info)" parameter of the function table to "1" (AD-8121
format), "2" (General format using the balance built-in clock data) or "3" (General format using theexternal device clock data).

Notes on outputting the GLP/GMP compliant report to a printer

Refer to "16.2. Connecting to Peripheral Equipment" for connection to a printer.
With an AD-8121B printer, use MODE 3. If MODE1 is used, select temporarily the dump print modeby pressing the STAT. key of the AD-8121B printer.
With an AD-8127 printer, use the dump printing mode.
If the external key printing mode is used, press and hold the ENT key of the AD-8127 printer (forapprox. 2 seconds) to switch between the external key printing mode and the dump printing mode.
If the data memory function is used (except data 0), the GLP output cannot be output
automatically.
If the time and date are not correct when the balance built-in clock data is output (info 1, 2), set thecorrect time and date in "Clock (Cl adj)" of the function table.
“info 3” is available for balances with software version 1.660 or later.

Calibration report using the internal mass
Note

If the data memory function is used (except data 0), the "Title block" and "End block"cannot be output.

Key operation
1 Press the CAL key to display Cal in . The balance performs calibration using the internal mass.
2 If GLP output is used, glp is displayed and the calibration report is output.
3 The balance returns to the weighing mode.
Function setting "info 1"
AD-8121 format===========A=&=D
MODEL=====BM-300
S/N=====01234567
ID======LAB-0123
DATE==2011/02/20
TIME====12:34:56
CALIBRATED(INT.)

Function setting "info 2"
General format using the balance built-in clock data
Manufacturer
Model
Serial number
ID number
Date
Time
Calibration type

SIGNATURE

Signature---------------<TERM>CR
LF
BM series

Space, ASCII 20h
Terminator, CR , LF or CR
Carriage return, ASCII 0Dh
Line feed, ASCII 0Ah
59Outputting the clock data of the external device “info 3”
When the "GLP output (info)" parameter of the function table is set to "3", the clock data of
external devices such as a printer or a personal computer can be used instead of the balance
built-in clock data for the GLP/GMP compliant report. This is useful for standardizing the clock
data using the clock function of an external device.
Notes
To output the clock data of an external device, the external device such as an AD-8127
printer or Windows communication tools software WinCT RsCom must have a function to
output the time and date when <ESC>D or <ESC>T is received.
Even withinfo 3 set, the data memory function saves the balance built-in clock data forthe calibration report.
Function setting "info 3"
General format using the external device clock data
Manufacturer
Model
Serial number
ID number
Date
Time
Calibration type
Signature

A & D
BM-30012345678
S/N
ID
LAB-0123
DATE 2018/06/18
TIME 12:34:56
CALIBRATED(INT.)
SIGNATURE

MODEL

60

AD-8127 data

BM series

Calibration test report using the internal mass
Note

Calibration test does not perform adjustment.
If the data memory function is used (except data 0), the "Title block" and "Endblock" cannot be output.
Key operation
1 Press and hold the CAL key to display CC in and release the key.
2 CC is displayed and the balance is checked automatically.
3 The zero point is measured and the weight value is displayed for a few seconds.
4 The internal mass is weighed and the weight value is displayed for a few seconds.
5 If GLP output is used, glp is displayed and the calibration test report is output.
6 The balance returns to the weighing mode.

CommandThis calibration test can be performed with the TST command.

Function setting "info 1"
AD-8121 format-----------A-&-D
MODEL-----BM-300
S/N-----01234567
ID------LAB-0123
DATE--2011/02/20
TIME----12:34:56
CAL.TEST(INT.)ACTUAL

Function setting "info 2"
General format using the balance built-in clock data
Manufacturer
Model
Serial number
ID number
Date
Time
Calibration test type-------0.0000--g----+200.0002--g

Zero point value
Target weight value

TARGET----+200.0000--g

Target weight

SIGNATURE

Signature---------------<TERM>CR
LF

BM series

Space, ASCII 20h
Terminator, CR , LF or CR
Carriage return, ASCII 0Dh
Line feed, ASCII 0Ah

61

Calibration report using an external weightNote

If the data memory function is used (except data 0), the "Title block" and "End block"cannot be output.

Key operation
1 Press and hold the CAL key to display Cal out and release the key.
2 Cal 0 is displayed.
3 To update the calibration weight value, press the RANGE key and proceed to Step 4.
To use the preset calibration weight value, proceed to Step 5.
4 Specify the calibration weight value using the following keys.
RANGE key........To select the blinking digit.
RE-ZERO (+)key...To increase the value of the blinking digit.
MODE (-)key .......To decrease the value of the blinking digit.
PRINT key .........To store the new value.
5 Press the PRINT key. The zero point is measured and the weight value is displayed for a few
seconds.
6 Place the displayed weight on the pan. Press the PRINT key to measure the weight and theweight value is displayed for a few seconds.
7 end is displayed. Remove the weight from the pan.
8 If GLP output is used, glp is displayed and the calibration report is output.
9 The balance returns to the weighing mode.
Function setting "info 1"
AD-8121 format-----------A-&-D
MODEL-----BM-300
S/N-----01234567
ID------LAB-0123
DATE--2011/02/20
TIME----12:34:56
CALIBRATED(EXT.)
CAL.WEIGHT----+200.0000--g
SIGNATURE

Function setting "info 2"
General format using the balance built-in clock data
Manufacturer
Model
Serial number
ID number
Date
Time
Calibration type
Calibration weight
Signature---------------<TERM>CR
LF

Space, ASCII 20h
Terminator, CR , LF or CR
Carriage return, ASCII 0Dh
Line feed, ASCII 0Ah

62

BM series

Calibration test report using an external weight
Note

Calibration test does not perform adjustment.
If the data memory function is used (except data 0), the "Title block" and "End block"cannot be output.

Key operation
1 Press and hold the CAL key to display CC out and release the key.
2 Cal 0 is displayed.
3 To update the target weight value, press the RANGE key and proceed to Step 4.
To use the preset target weight value, proceed to Step 5.
4 Specify the target weight value using the following keys.
RANGE key .......... To select the blinking digit.
RE-ZERO (+)key .... To increase the value of the blinking digit.
MODE (-)key ......... To decrease the value of the blinking digit.
PRINT key............ To store the new value.
5 Press the PRINT key. The zero point is measured and the weight value is displayed for a few seconds.
6 Place the displayed target weight on the pan. Press the PRINT key to measure the weight. The weightvalue is displayed for a few seconds.
7 end is displayed. Remove the weight from the pan.
8 If GLP output is used, glp is displayed and the calibration test report is output.
9 The balance returns to the weighing mode.
Function setting "info 1"
AD-8121 format-----------A-&-D
MODEL-----BM-300
S/N-----01234567
ID------LAB-0123
DATE--2011/02/20
TIME----12:34:56
CAL.TEST(EXT.)ACTUAL

Function setting "info 2"
General format using the balance built-in clock data
Manufacturer
Model
Serial number
ID number
Date
Time
Calibration test type-------0.0000--g----+200.0002--g

Zero point value
Target weight value

TARGET----+200.0000--g

Target weight

SIGNATURE

Signature---------------<TERM>CR
LF

BM series

Space, ASCII 20h
Terminator, CR , LF or CR
Carriage return, ASCII 0Dh
Line feed, ASCII 0Ah

63

Title block and end block
When the weight values are recorded as GLP data, a "Title block" is inserted at the beginning andan "End block" is inserted at the end of a group of weight values in the GLP report.
Note If the data memory function is used (except data 0), the "Title block" and "End block"cannot be output.
Key operation
1 With the weighing data displayed, press and hold the PRINT key (for approx. 2 seconds) until
5tart is displayed, and then release the key. The "Title block" is output.
2 The weighing data is output according to the parameter setting of the data output mode (prt) of
the function table.
3 Press and hold the PRINT key (for approx. 2 seconds) until recend is displayed, and thenrelease the key. The "End block" is output.
Function setting "info 1"
AD-8121 printer format-----------A-&-D

Title block

ID------LAB-0123
DATE--2011/02/20

Manufacturer
Model
Serial number
ID number
Date

START
TIME----12:34:56

Time

MODEL-----BM-300
S/N-----01234567

Function setting "info 2"
General format using the balance built-in clock data

WT--+123.4567--g
WT--+123.4612--g
WT--+123.4623--g
WT--+123.4634--g

Weighing data

WT--+123.4511--g
WT--+123.4534--g
WT--+123.4712--g
WT--+123.4645--g
END
TIME----12:40

Time

15
SIGNATURE

Signature---------------

End block<TERM>CR
LF

Space, ASCII 20h
Terminator, CR , LF or CR
Carriage return, ASCII 0Dh
Line feed, ASCII 0Ah

64

BM series12. Data Memory
Data memory is a function to store weighing data and calibration data in memory. The data stored inmemory are available for outputting at one time to a printer or personal computer.
Weighing data

Excluding the time and date

Up to 200 sets

Including the time and date

Up to 100 sets

Calibration report: Using the internal mass and an external weight
Automatic self calibration
Calibration test report: Using the internal mass and an external weight

Last 50 sets

12.1. Notes on Using Data Memory
To use the memory function, set the "Data memory (data)" parameter and the"Time/Date output (5-td)" parameter of the function table. Refer to "10. Function
Table" for details on setting the data memory.
For weighing data, the data contents to be stored and the storage capacity dependon the "Time/Date output (5-td)" parameter setting.
If a different type of data exists in memory, "Clr" blinks in the upper left of thedisplay to prompt you to delete the data.
For example: You want to store weighing data but calibration data or unit mass
data remains in memory. "Clr" blinks.

Upper left ofthe display

If the stored data is corrupted, "err" blinks in the upper left of the display.
Under such a condition, before storing data, delete the data in memory as follows:

Releasing "Clr" or "err"

1 Press and hold the PRINT key (for approx. 2 seconds) until SClr "n"o with "no" blinking is displayed,
and then release the key.
2 Press the RE-ZERO key to display

Clr "g"owith "go" blinking.

3 Press the PRINT key to delete all the data in memory.
4 The balance displays end and returns to the weighing mode.

12.2. Data Memory for Weighing Data
Features
The balance can store 200 sets of weighing data in memory (if the time and date are added, thebalance can store 100 sets). Even if the AC adapter is removed, the data is maintained in the memory.
It is not necessary to connect a printer or personal computer to the balance continually, because
the balance stores the weighing data in memory.
The data memory function does not occupy a printer or personal computer while weighing.
The data in memory can be displayed on the balance for confirmation.
The data in memory can be output at one time to a printer or personal computer.
Comment: Select items for addition to the output data, such as the ID number, data number, timeand date, in the function settings.
BM series

65

Storing the weighing data
Note If "Clr" blinks in the upper left of the display, delete the data in memory.
1 Set the "Data memory (data)" parameter to "1" (To store the weighing data).
2 Specify whether or not to add the time and date using the "Time/Date output (5-td)" parameter.
3 The storing mode depends on the "Data output mode (prt)" parameter setting.
Four modes are available to store data.
Key mode ........................... When the PRINT key is pressed and the displayed value is stable, thebalance stores the weighing data.
..............
Auto print mode A
When the displayed value is stable and the conditions of "Auto print
polarity", "Auto print difference" and zero point (reference value) are met,
the balance stores the weighing data.
..............
Auto print mode B
When the displayed value is stable and the conditions of "Auto print
polarity", "Auto print difference" and last stable data (reference value)
are met, the balance stores the weighing data.
......................
Interval mode
Weighing data is stored at an interval specified in "Interval time (int)".
Press the PRINT key to start and stop this mode.

Enabling the data memory function
1 Press and hold the RANGE key (for approx. 2 seconds)
until ba5fnc is displayed, and then release the key.

Press and hold(approx. 2 seconds)

2 Press the RANGE key several times to display dout .

Press several times

3 Press the PRINT key.

4 Press the RANGE key several times to display data .
Press several times
5 Press the RE-ZERO key to display data 1 .

6 Press the PRINT key to store the setting.

7 Press the CAL key to return to the weighing mode.

66

BM series

Display symbols for data memory
Number of data
in memory

Interval memory
standby indicator

Weighing data
being displayed

Memory fullInterval memory
active indicator

Data number of the data
currently displayed
Memory data being displayed
Notes
When weighing data is being stored in memory, the data can be output to a personal
computer using the RS-232C interface at the same time.
"fUl" indicates that memory is full or the memory capacity has been reached. More datacannot be stored unless the memory data is deleted.
Automatic self calibration cannot be used while the interval memory mode is active.
The following commands cannot be used during data storage.

Setting the function table
Parameter settings for each output mode are as follows:
Item
Mode
Key mode
Auto print mode A
Auto print mode B
Interval mode

Data output
mode
prt 0
prt 1
prt 2
prt 3

Auto print polarity,
difference
Not used
ap-a 0 to 2
ap-b 0 to 2
Not used

Data memory
Interval timefunction
data 1
data 1
Not useddata 1
data 1
int 0 to 8

Additional parameter settings, as follows:
Data number
ID number

BM series

No
Yes
No
Yes

d-no offd-no on5-id off
5-id onTime and date

67

NoTime only
Date onlyBoth

5-td 0 200 sets
5-td 15-td 2 100 sets
5-td 3

Recalling the memory data

Confirm that the "Data memory (data)" parameter is set to "1".

Indicators

1 Press and hold the PRINT key (for approx. 2 seconds) until reCall
is displayed, and then release the key. The type of data appears in
the upper left of the display as shown to the right.

Weighing data
without time and date

2 Press the PRINT key to enter the memory recall mode.
Recall the data in memory using the following keys.
RE-ZERO key .....To proceed to the next data set.
MODE key .........To go back to the previous data set.
PRINT key..........To transmit the current data using the RS-232C
interface.
With RANGE held down, press the CAL key
To delete the current data.
CAL key.............To exit the memory recall mode.

Weighing data withtime and date

3 Press the CAL key to return to the weighing mode.

Transmitting all memory data at one time

Confirm that the "Serial interface (5if)" parameters are set properly.
Refer to "10. Function Table" and "16.2. Connecting to Peripheral Equipment".

1 Press and hold the PRINT key (for approx. 2 seconds)
until reCall is displayed, and then release the key.

Press and hold(approx. 2 seconds)

2 Press the RANGE key to display out .

3 Press the PRINT key to display out "n"o with "no"blinking.

4 Press the RE-ZERO"go" blinking.

key to displayout "g"owithTransmit all data

5 Press the PRINT key to transmit all data using the
RS-232C interface.
6 The balance displays
Clear
when all data istransmitted.
Press the CAL key to return to the weighing mode.

68

BM series

Deleting all memory data at one time
1 Press and hold the PRINT key (for approx. 2 seconds)
until reCall is displayed, and then release the key.
2 Press the RANGE key several times to display
Clear .

Press and hold(approx. 2 seconds)
Press several times

3 Press the PRINT key to display Clr "n"o with "no"blinking.
4 Press the RE-ZERO"go" blinking.

key to display

Clr "g"owith

5 Press the PRINT key to delete all data.
6 The balance displays
weighing mode.

end

and returns to the12.3. Data Memory for Calibration and Calibration Test Data
Features
Calibration data (when and how it is performed) and calibration test
data can be stored in memory.
All the data in memory is available to be output at one time to a printeror personal computer.
Up to 50 data sets of the latest calibration or calibration test can be
stored. When the memory capacity has been reached, "fUl" isdisplayed in the upper left of the display.

Storing the calibration and calibration test data

Indicator

Note If "Clr" appears blinking in the upper left of the display, delete the data in memory.
Store the calibration and calibration test data as follows:
1 Set the "Data memory (data)" parameter to "2" (to store the calibration data).
2 Set the "GLP output (info)" parameter to "1", "2" or "3".
3 With the settings above, each time calibration or calibration test is performed, thedata is stored automatically.

BM series

69

Transmitting the memory data
Notes
Confirm that the "Serial interface (5if)" parameters are set properly.
Refer to "10. Function Table" and "16.2. Connecting to Peripheral Equipment".
Confirm that the "Data memory (data)" parameter is set to "2".
1 Press and hold the PRINT key (for approx. 2 seconds)
until out is displayed, and then release the key.

Press and hold(approx. 2 seconds)

2 Press the PRINT key to display out "n"o with "no"blinking.
3 Press the RE-ZERO"go" blinking.

key to displayout "g"owith

4 Press the PRINT key to transmit all memory data using
the RS-232C interface.
5 The balance displays Clear when all memory data
is output.
Press the CAL key to return to the weighing mode.

Deleting data stored in memory
1 Press and hold the PRINT key (for approx. 2 seconds)
until out is displayed, and then release the key.

Press and hold(approx. 2 seconds)

2 Press the RANGE key to display Clear .
3 Press the PRINT key to display Clr "n"o with "no"blinking.
4 Press the RE-ZERO"go" blinking.

key to display

Clr "g"owith

5 Press the PRINT key to delete all data.
6 The balance displays
end
and returns to theweighing mode when all the data has been deleted.

70

BM series

13. Underhook
The underhook can be used for magnetic materials or density measurement. The built-in
underhook is revealed by removing the cap on the bottom of the balance. Use the underhook asshown below.
Caution
Do not apply excessive force to the underhook.
When not in use, attach the cap to prevent dust fromgetting into the balance.
Do not push the underhook upward
When turning the balance over, parts and weighing
sample in the weighing chamber will fall off. (Parts: theweighing pan, pan support, breeze break ring, fine range
ring and dust plate )Remove them first.
When the cap is removed, a weighing error may occur,
because of drafts entering into the internal portion of thebalance. Arrange the room condition.
UnderhookCap

1 Remove the cap on the bottom of the balance.
2 Hang your weighing pan on the underhook.
Place the balance on the solid table.

Solid tableequipped with a hole.
Weighing pan

BM series

71

Bottom14. Density Measurement (Specific gravity)
The balance is equipped with a density mode. It calculates the density of a solid using the weightof a sample in air and the weight in liquid. We recommend the use of the AD-1653 Density
Determination Kit.
Notes
The density mode was not selected for use when the balance was shipped from the factory.
To use this mode, change the function table settings to activate the density mode.
Refer to "5.2. Storing Active Units".
When the density mode is selected, the response adjustment function cannot be used.
The readability is 0.0001 g while using the density mode.

Formula to obtain the density
The density can be obtained by the following formula.
Whereρ : Density of a sample
A
A : Weight value of a sample in air
ρ=
x ρ0
B
: Weight value of a sample in liquid
A- B
ρ0 : Density of a liquid

Prior to measurement: Changing the function table
Prior to measurement, change the function table as follows:
1 Selecting the density mode.
The density mode is not available in the factory setting. To use the mode, select it (unit of Unit.)in the function table. Refer to "5.2. Storing Active Units". Then, the density mode can be selected as
one of the weighing units by pressing the MODE key.
2 Selecting a way to set the density of a liquid.
Select the liquid density input method from the function table below.
Note The following function table is displayed only when the unit of Unitof the density function (d5 fnc) is displayed after 5if.
Classd5 fncDensity functionis active. The table

Item and Parameter
Description0
Watertemperature
ldin
Liquid density input
1 Liquid density
Factory setting.

72

BM series

Entering the density of a liquid

Two ways to set the density of a liquid are available in the function table, "Liquid density input (ldin): byentering the water temperature or by entering the density directly.

1 Press the MODE key as necessary to select the density mode.
Press and hold the MODE key (for approx. 2 seconds) to select to "watertemperature" or "liquid density". In the density mode : The unit is "g (gram)". The
processing indicator ( ) blinks. Response adjustment is off.
If you cancel the density mode, press the MODE key.

Entering the water temperature ( ldin 0 )2 Press and hold the MODE key (for approx. 2 seconds). The watertemperature currently set (unit: °C, factory setting : 25°C) is
displayed. Use the following keys to change the value.

Press and hold(approx. 2 seconds)

RE-ZERO (+)key .... To increase the temperature by one degree.

(0°C is displayed after 99°C)
MODE (-)key .......... To decrease the temperature by one degree.

(99°C is displayed after 0°C)
key............ To store the new water temperature, display
end and return to the density mode. Proceed
to Step 1.

PRINT

key ............... To cancel the change and return to the density mode.
Proceed to Step 1.

CAL

The relation between the water temperature and density

°C
0
10
20
30
40

+0

0.99984
0.99970
0.99820
0.99565
0.99222+10.999900.99961
0.99799
0.99534
0.99183+20.99994
0.99949
0.99777
0.99503
0.99144+30.999960.99938
0.997540.99470
0.99104+4

0.99997
0.99924
0.99730
0.99437
0.99063+50.999960.999100.99704
0.994030.99021+60.99994
0.99894
0.99678
0.99368
0.98979+70.999900.99877
0.99651
0.99333
0.98936+80.99985
0.99860
0.99623
0.99297
0.98893+90.99978
0.998410.99594
0.99259
0.98849g/cm3

Entering the density directly ( ldin 1 )Press and hold the MODE key (for approx. 2 seconds). The density
currently set (unit : g / cm3, factory setting : 1.0000g / cm3) isdisplayed.
Use the following keys to change the value.
The range to set the density is 0.0000g / cm3 to 1.9999g / cm3.

Press and hold(approx. 2 seconds)

RE-ZERO (+)key..... To increase the value of the digit selected.
MODE (-)key .......... To decrease the value of the digit selected.
RANGE

key.......... To select the digit to change the value.

PRINT

key............ To store the change, display end and return to the density mode. (Step 1).

CAL

BM series

key ............... To cancel the change and return to the density mode. (Step 1)

73

Measuring the density ( specific gravity )Note If the liquid temperature or the type of liquid is changed during measurement, input
the value of the liquid density again as necessary. The density display is four decimal
places. The readability cannot be changed with the RANGE key.
The density (or specific gravity) is displayed after "Weighingin air" and " Weighing in liquid". The procedure of eachmeasurement is as follows:g : gram.
: the processing indicator
1 Enter the density mode. (g lights.
blinks.)Place nothing on both pans and press the RE-ZERO key
to display zero.
2 Place the sample on the pan in air (g lights.
blinks.)and wait for the weight value to be stable.
To store or output the weight value, press the PRINT key.
Press the RANGE key to confirm the weight value
in air and proceed to the next step.
Note If negative value or e (out of range) isdisplayed, the RANGE key is inactive.

3 Move the sample to the pan in liquid (g lights. lights.)
and wait for the weight value to be stable.
To store or output the weight value, press the PRINT key.
Press the RANGE key to confirm the weight value inliquid and proceed to the next step.
Note If e (out of range) is displayed, the RANGE
key is inactive.

4 To store or output the density value, press the PRINT
key. (Unit : . g turns off.
lights.)Press the RANGE key to measure another sample
and proceed to Step 2.

From "Entering thedensity of a liquid"

Weighing in air.
g lights.
blinks.

Place sample on
the pan in air

Weighing in air.
g lights.
blinks.
Output or store

Move sample fromthe pan in air to thepan in liquid

Weighing in liquid.
g lights.
lights.
Output or store

Density display.
g turns off.
lights.
Output or store
Remove sample

5 If the liquid temperature or the type of liquid is changed
during measurement, input the value of the liquid density
again as necessary.

6 Press the MODE key to proceed to other modes.

74

BM series

15. Password Function
The password function can be used to restrict balance use or functions. It is useful for preventing
the time and date setting from being falsified and preventing users from changing other function
settings.
Password: Four digits (4 x 4 x 4 x 4 = 256 outcomes) using the MODE , RANGE , PRINT and
RE-ZERO keys.
At the factory setting, the password function has been disabled.
Settings related to the password function are performed in the function table.
Note The password function varies depending on the balance software version.

15.1. Balance Software Version 1.50 to 1.64
Two settings are available in “Password function (LocFnc) ” of the function table.
pA55 0No password function.

pA55 1Entering a password is required before starting weighing.

pA55 0 (No password function)
No password is required. Anybody can perform weighing, use all the balance functions and makechanges to them.
pA55 1 (Entering a password is required before starting weighing.)
The administrator (ADMIN ) sets a unique password to restrict balance users. Only one
password by the administrator can be set.
The correct password must be entered for the balance to enter the weighing mode.

BM series75

15.2. Balance Software Version 1.660 or later
Three settings are available in “Password function (LocFnc) ” of the function table.
pA55 0pA55 1
pA55 2

No password function.
Entering a password is required before starting weighing.
Logging in by the administrator password is required before making changes.

pA55 0 (No password function)
No password is required. Anybody can perform weighing, use all the balance functions and makechanges to them.
pA55 1 (Entering a password is required before starting weighing.)
The administrator (ADMIN ) sets unique passwords to restrict balance users. Pressing the
ON:OFF key before weighing will prompt you to enter a password.
The correct password must be entered for the balance to enter the weighing mode.
Two login levels are available: administrator (ADMIN ) and user (U5ER 01 to 10).
Administrator (ADMIN)
User (U5ER 01 to 10)
No password

All the functions and settings can be used.
A password can be set for each of 10 users.
Initialization and changes to the settings are restricted,
including the clock setting.
The balance cannot be used.

pA55 2 (Logging in by the administrator password is required before making changes.)
Anybody can perform weighing, but initialization and changes to the settings are restricted,
including the clock setting. Even if the ON:OFF key is pressed to start weighing, a password
will not be required.
Two login levels are available: administrator (ADMIN ) and guest (GUE5T).
Administrator (ADMIN)
Guest (GUE5T)*No password

All the functions and settings can be used.
Initialization and changes to the settings are restricted,
including the clock setting.

When weighing is started by pressing the ON:OFF key while holding down the CAL key inthe standby mode, the balance will prompt you to enter the administrator password.

Items restricted depending on the login level
Weighing
Login level

Entering password
before weighing

Administrator(ADMIN)
RequiredUser(U5ER 01 to 10)
Guest
Not required(GUE5T)

Calibration

Changes to the settings *1

Available

Available

Available or
not available*2

Not available*1: Response adjustment, repeatability test, function switch and initialization, function settings(clock setting)*2: Available under ordinary circumstances, but not available to users and guests when theadministrator sets the function switch to “inhibit”.
76

BM series

15.3. Using the Password Function
The password function can be switched among “Not used(0)”, “Used(1)” and “Used(2)” in“Password function (locfnc) ” of the function table.
0.00001 In the weighing mode, press and hold the RANGE key (forapprox. 2 seconds) until ba5fnc is displayed, and thenrelease the key.
2 Press the RANGE key several times to display locfnc .

Press and hold(approx. 2 seconds) RANGE
bA5Fn
Press several times RANGE
LocFnc3 Press the PRINT key to display pa55 "0 .
To cancel the operation, press the CAL key.

4 Press the RE-ZERO key to switch the numbers. Display “1” or“2”.

5 Press the PRINT key to display 5ure :ye5 " "blinking (selected).

with "No"6 Press the RE-ZERO key to switch between "yE5" and "No".

No is selected.

PA55

0

PA55

1

5urE : YE5 No

5urE : YE5 No

Switch between YES/No
7 Display 5ure :"y"e"5

with "yE5" blinking (selected).
YES is selected. 5urE : YE5 No

8 Press the PRINT key to store the new setting. The password
function can now be used.

Confirm
5urE : YE5
End9

loc no is displayed. To store or change the password,
proceed to Step 3 in “15.6. Storing or Changing the Password”.
Not to store or change the password, press the CAL key toreturn to the weighing mode.

Note When the balance software version is 1.50 to 1.64,
only “Not used(0)” or “Used(1)” is available.

BM series

77

Loc no.
Press
0.000015.4. Entering the Password Before Weighing
15.4.1. pA55

1 (Entering a password is required before starting weighing)

1 In the standby mode, press the ON:OFF key.
2 After U5ER PA55 WD , ---- PA55 is displayed to prompt
you to enter a password.
U5ER
3 Enter a four-digit password using the following keys.
The display will turn off automatically after ten minutes of
non-operation.
MODE key............. To enter m
RANGE key ........... To enter r
PRINT key ............. To enter p
RE-ZERO key ........ To enter 2
CAL key ................ To go back one character

PA55 WD
----

PA55

RANGE

Enter four characters
4 When the password is correct, the balancedisplays the login level, turns all the display
segments on, and then enters the weighing mode.
When the administrator password is entered, you
are logged in as an administrator.
The default password set at the factory is 2222
(press the RE-ZERO key four times), foradministrator level.
When the password is incorrect, the balancedisplays FA iL , sounds the buzzer three times
and turns the display off.

2222
Correct
password

PA55

No operationfor 10 minutes

Incorrect
password

LoG

In : ADMIN
Login level
FA iL
Full segments
0.0000Weighing mode

Display off

Note When the balance software version is 1.50 to 1.64,
the login level is not displayed when logged in.
When the balance software version is 1.660 or later,enter the administrator password to log in as anadministrator.

78

BM series

15.4.2. pA55

2 (Logging in by the administrator password is required before making changes)

Logging in as an administrator (ADMIN)
1 In the standby mode, while holding down the CAL key, press
the ON:OFF key.

While holding down
ADMIN

2 Enter a four-digit password using the following keys.
The display will turn off automatically after ten minutes of
non-operation.
MODE key............. To enter m
RANGE key ........... To enter r
PRINT key ............. To enter p
RE-ZERO key ........ To enter 2
CAL key ................ To go back one character

3 When the password is correct, the balancedisplays the login level, turns all the display
segments on, and then enters the weighing mode.
The default password set at the factory is 2222
(press the RE-ZERO key four times), foradministrator level.
When the password is incorrect, the balancedisplays FA iL , sounds the buzzer three times
and turns the display off.

PA55 WD
PA55

----

RANGE

Enter four characters
2222

PA55

No operationfor 10 minutes

Incorrect
password

Correct
password
LoG

In : ADMIN
Login level
FA iL
Full segments
0.0000Weighing mode

Display off

Logging in as a guest (GUE5T)
1 In the standby mode, press the ON:OFF key.
LoG

2 After In : GUE5T
weighing mode.

LoG, the balance enters the

In : GUE5T
0.0000Weighing mode

BM series7915.5. Logging Out
1 To log out, press the ON:OFF key to turn the display off.
With the function pA55 1 set, the password will need to beentered again to enter the weighing mode from the standby
mode.

0.0000Weighing mode

Display off

80

BM series15.6. Storing or Changing the Password
The password can be changed in "Password (loc no..)" of the function table.

1 In the weighing mode, press and hold the RANGE key (forapprox. 2 seconds) until ba5fnc is displayed, and thenrelease the key.

0.0000Press and hold(approx. 2 seconds)

RANGE

bA5Fn
2 Press the RANGE key several times to display loc no. .

Press several times

RANGE

Loc no.
3 Press the PRINT key to display the login level (ADMIN).

4 Press the RANGE key to display the login level to bechanged (ADMIN/U5ER 01 to 10).
The stabilization indicator appears at a login level wherea password has been stored. (The password can bechanged.)AdMIN.
RANGE

Login level
U5 ER

01

Press
several RANGE
times
U5 ER
5 To change the password, press the PRINT key. For details,
refer to “15.7. Changing the Password”.

Refer to “15.7. Changing
the Password”.

Notes
To log out, press the ON:OFF key to turn the display off.
With the function pA55 2 set, the administrator password is required tolog in as an administrator. No password needs to be stored for U5ER 01 to 10.
When the balance software version is 1.50 to 1.64, only one password
can be stored. While the balance displays loc no. , press the PRINT key
to display the current password.

BM series

8110

15.7. Changing the Password
1 Refer to “15.6. Storing or Changing the Password”
to display the login level to be changed.

Refer to “15.6. Storing or
Changing the Password”.
ADM IN

2 Press the PRINT key to display the current password.
The default password set at the factory is 2222 (press
the RE-ZERO key four times), for administrator level.
3 Enter a new four-digit password using the following keys.
The display will turn off automatically after ten minutes of
non-operation.
MODE key............. To enter m
RANGE key ........... To enter r
PRINT key ............. To enter p
RE-ZERO key ........ To enter 2
CAL key ................ To go back one character
CAL key (press and hold for approx. 2 seconds)................To delete the password
Refer to “15.8. Deleting the
password”.

Current password
PA55

2222

RANGE

Back key
Enter the 4th
character
PA55

No operationfor 10 minutes

MRP2
PA55

MRP2

5urE : YE5 No

4 The new password is displayed.
55urE :YE5 No is displayed with "No" blinking(selected).
Press the CAL key to return to the fourth character
entry position.

6 Press the RE-ZERO key to display 5urE :YE5 No
with "yE5" blinking (selected).

5urE : YE5 No
Confirm
5urE : YE5
End
Display off

7 While “yE5” is blinking, press the PRINT key to store thenew password.

U5 ER

8 When setting is complete, end and then the next
login level is displayed.
To set a password for the next level, follow the procedure
starting from Step 2.
To finish the operation, press the CAL key twice toreturn to the weighing mode.

01

Press twice
0.00

Notes
If you have forgotten the password, the balance cannot be used. Make arecord of the password and keep it where you can refer to it if needed.
The same password as the administrator password cannot be used for
U5ER 01 to 10.
82

BM series

15.8. Deleting the Password（U5ER 0 1～10）
1 Refer to “15.7. Changing the Password” to select theuser whose password to be deleted and display the
password.
2 Press and hold the CAL key (for approx. 2 seconds)
to display Clear (blinking).

Refer to “15.7. Changing the Password”.
PA55

M5P2
Press and hold(approx. 2 seconds)
CLEAR

3 Press the PRINT key to display Clear No .
CLEAR

No

CLEAR

Go

4 Press the RE-ZERO key to switch between "Go" and"No".

5 While Clear Go is displayed, press the PRINT key
to delete the password.
The balance displays end and then displays thelogin level.

End
U5 ER
Note The administrator password cannot be deleted, but it can bechanged.
Refer to “15.6. Storing or Changing the Password” and “15.7.
Changing the Password” to change it.

15.9. Forgotten Password
If you have forgotten the password, the balance cannot be used.
Contact your local A&D dealer to undo the password.

BM series

8301

16. Standard Input and Output Interface
16.1. RS-232C Interface
The balance is a DCE device. Connect the balance to a personal computer (DTE) using a straight
through cable.
Transmission system: EIA RS-232C
Transmission form
: Asynchronous, bi-directional, half duplex
Transmission rate
: 10 times/second or 5 times/second (same as data refresh rate)
Data format: Baud rate : 600, 1200, 2400, 4800, 9600, 19200 bps
Data bits : 7 or 8 bits
Parity: Even, Odd(Data bits 7 bits)
None(Data bits 8 bits)
Stop bit: 1 bit
RS-232C
Code: ASCII-5V to -15V
+5V to +15V
Data bits
Stop bit
Start bit
Parity bit

D-Sub 9 pin assignments
Pin No.
1
2
3
4
5
6
7
8
9

Signal name
RXD
TXD
SG
DSR
RTS
CTS
-

Direction
OutputInput
OutputInput
Output-Description
No connection
Transmit data
Receive data
No connection
Signal ground
Data set ready
Request to send
Clear to send
No connection#4-40UNC

Signal names other than TXD and RXD are DTE-side names.
Balance side
DCE

+5V

Computer side
DTE
TXD
RXD
RTS
CTS
DSR
SG

2
3
7
8
6
5

RXD
TXD
RTS
CTS
DSR
SG
Terminal example

Inside of balance

84

BM series16.2. Connecting to Peripheral Equipment
16.2.1. Connecting to the AD-8121B PrinterWhen connecting the AD-8121B printer to the balance for printing weighing data, configure the printerand the balance as follows
Class

Item and Parameter
prt

Data output mode
ap-pAuto print polarity
ap-b

Auto print difference
dout
Data output

5-id

ID number output
d-no

Data number output
5-td

Time/Date output
pU5e

Data output pause
at-fAuto feedbp5

Baud rate
5if
Serialinterface

btpr

Data bit, parity bit
Crlf

Terminator

Factory
settings

AD-8121B
MODE 1AD-8121B
MODE 2AD-8121B
MODE 300,1, 2

3

0,1, 2#1

No setting

#1

off

off

off

off, on

off

off

off

off, on00

00,1, 2, 3

off

off

off

off, on #2

off

off

off

off, on

2

2

2

2

0

0

0

0

0

0

0

0

0
1

type

0
0
0
1
Data format#1 Set the parameters when auto print mode A or B (prt 1 or 2) is selected.
#2 Set on when multiple lines are printed. Example: When adding ID number, set on.

ON

Notes
Refer to "11.2. GLP Report" for print samples.
Settings of AD-8121B
AD-8121B
MODE
Description
DIP switch
MODE
Print at receiving data.
MODE 1
Standard mode, statistical calculation modeON

Print by DATA key operation or built-in timer.
Standard mode, interval mode, chart modeON

1 2 3 4MODE

1 2 3 4

MODE 2Print at receiving data.
Dump print modeMODE

1 2 3 4

MODE 3

1 2 3 41 2 3 4ON

BM seriesON

DIP switch No.3 : Handling unstable data
MODE
ON
To printOFF
Not to print
DIP switch No.4 : Data input specifications (Interface selection)
MODE
ON
Current loopOFF
RS-232C

85

16.2.2. Connecting to the AD-8127 PrinterWhen connecting the AD-8127 printer to the balance for printing weighing data, configure the printerand the balance as follows according to the usage examples.

Function settings of the printerUsage example

AD-8127
Multi printerPrinting mode settings

When printing the balance weighing datawith the balance’s PRINT key or its“Auto print” mode.
When printing the balance weighing datawith the printer’s “Printing” key or its“Interval printing” mode.
When printing charts with the printer.
When printing the balance’s statistical
calculation results.
When printing the balance’s GLP report.

EXT.KEYMANUAL
AUTO
TIMER
CHART
DUMP

□ Refer to the instruction manual of the AD-8127 printer for how to change the function settings of the
AD-8127 printer.

Function settings of the balance
Balance

Balance

Data output mode

Data format

0,1, 20

3

00,1, 2

1

Usage example
When printing the balance weighing datawith the balance’s PRINT key or its“Auto print” mode.
When printing the balance weighing datawith the printer’s “Printing” key or its“Interval printing” mode.
When printing charts with the printer.
When printing the balance’s statistical
calculation results.
When printing the balance’s GLP report.

□ Refer to “10. Function Table” for how to change the function settings of the balance.

86

BM series16.2.3. Connecting to a Computer Using the RS-232C Interface
Features

The balance is of the DCE type (Data Communication Equipment), which can be connected to apersonal computer using the RS-232C interface. Before connection, read the personal computer
manual thoroughly. Use a standard DCE cable for connection (cable type: straight-through).

Using Windows Communication Tools Software (WinCT)

When Windows is used as an operating system in a personal computer, the WinCT software canbe used to transmit the weighing data to the personal computer. The current version of the WinCT
can be downloaded from the A&D website. Confirm the windows version supported by thissoftware when downloading. Refer to the WinCT instruction manual in the A&D website. The
WinCT software has three communication methods: "RsCom" , "RsKey" and "RsWeight".

RsCom

RsCom can transmit commands to control the balance.
RsCom can make bi-directional communication between the balance and a personal computer
using the RS-232C interface.
RsCom can display or store the data using a text file format. RsCom can also print the data usinga printer connected to the personal computer.
When several ports of a personal computer have balances connected, the personal computer cancommunicate with each balance simultaneously.
RsCom can share a personal computer with other application software.
RsCom can receive the balance GLP report.

RsKey

RsKey can transmit the weighing data output from the balance directly to other application
software such as Microsoft Excel.
RsKey can be used with most application software.
RsKey can receive the balance GLP report.

RsWeight

Can retrieve the weight data from the balance and display the data as a graph in real time.
Can calculate and display the maximum, minimum, average, standard deviation and coefficient ofvariation.

Using the WinCT software, the balance can do the following:
Analyzing the weighing data and the statistics input by "RsKey"
The weighing data can be input directly into an Excel worksheet. Then, Excel can analyze the data toobtain total, average, standard deviation, maximum and minimum values, and display them in a graph.
Controlling the balance using commands from a personal computer
By using "RsCom", the personal computer sends commands such as "re-zero" or "send weighingdata" to the balance and controls the balance.
Printing the balance GLP report using your printerThe balance GLP report can be printed using a printer connected to the personal computer.
Receiving weighing data at a certain interval
The weighing data can be received at a certain interval and data characteristic with elapsed time
can be obtained.
Using the balance memory function
The data can be stored in the balance’s memory. Of the data stored, the weighing data andcalibration data can be transmitted to a personal computer at one time.
Using a personal computer as an external indicator
With the "RsKey" test mode function, a personal computer can be used as an external weightindicator for the balance. (To do this, set the balance data output mode to stream mode.)
BM series8716.2.4. Connecting to a Computer Using the USB Interface
Features
The weighing data can be transmitted to a personal computer when connecting the balance andpersonal computer via the USB interface. The applicable operating system is Windows 7 or later, as ofDecember 2018.
The USB interface uses standard device driver software and does not require installation of
special driver software. By simply connecting, weighing data can be transmitted.
The data can be transmitted to most application software (ex.: EXCEL, WORD, Notepad).
Notes
The balance can transmit the weighing data only without the header and unit.
The USB interface of the balance cannot receive the command that controls the balance.
When using the command, connect to the RS-232C interface of the balance. Whenconnecting the USB interface of a personal computer to the RS-232C interface of thebalance, use the USB converter (AX-USB-9P).
Do not use the screensaver or suspend mode of a personal computer.
Even if stream mode is used, output will be performed approximately 2 times/second due
to key input operation.
To add the ID number, data number, time and date to the weighing data or to output the
GLP report, set the “Data output pause (PU5E)” parameter of “Data output (dout)” to “on”
(Pause 1.6 seconds). The time and the date are separated by a dot when output.
When the “Data format (tYPE )” parameter is set to “5” (CSV format), the ID number, data
number, time and date cannot be added to the weighing data.

Using the USB interface
1 Start the Windows of the personal computer.
Connect the AC adapter to the balance and press the ON:OFF key to turn the display on.
2 Connect the personal computer to the balance using the USB cable.
Note Do not use stream mode of data output mode (dout: prt 3).
3 At the first connection only, the USB driver software is automatically installed.
4 Open the application (ex.: EXCEL) that is to receive the weighing data.
Move the cursor onto the position to input the weighing data.
5 Press the PRINT key to input the weighing data at the position of the cursor.
6 To finish the operation, remove the USB cable.

ExamplesCase 1: Transmitting the weighing data with key operation
Data output mode of the balance: Key mode (factory setting),
Press the PRINT key to transmit the weighing data. (basic use)
Case 2: Transmitting the stable weighing data
Data output mode of the balance: Auto print mode A and B,
When a sample is placed and the stabilization indicatorisdisplayed, the weighing data is transmitted. This mode is usefulwhen repeating the weighing.

dout: prt 0

dout: prt 1 or 2

Case 3: Transmitting the weighing data periodically
Data output mode of the balance: Interval mode,
dout: prt 3, data 1 and int
The weighing data is transmitted periodically.
The interval time: 2, 5, 10, 30 seconds, 1, 2, 5, 10 minute(s).
88

BM series16.3. Commands
16.3.1. Command List
Note Before transmitting a command, add the terminator that is specified in the “Terminator(Crlf)” parameter of “Serial interface (5if)” in the function table.
Commands to query weighing data
C
Cancels the S or SIR command.
Q
Requests the weighing data immediately.
S
Requests the weighing data when stabilized.
SI
Requests the weighing data immediately.
SIR
Requests the weighing data continuously.
Commands to control the balanceSame as the CAL key.
CAL
Turns the display off.
OFF
Turns the display on.
ON
Same as the ON:OFF key.
P
Same as the PRINT key.
PRT
Same as the RE-ZERO key.
R
Same as the RANGE key.
RNG
Tares the balance.
TR
Performs calibration test.
TST
Same as the MODE key.
U

Calibration using the internal mass.

Turning the display on or off.
Zero display.
#1
Changing the readability.
Canceling the container’s weight.
#1
Calibration test using the internal mass.
Changing the unit.

KL

Sets locking or unlocking of the key lock (function to disable all keys).

LK

Sets the specified to be locked (disabled) #1

Commands to request data
Requests the identification number.
?ID
Outputs the tare value.
?PT
Requests the serial number of the balance.
?SN
Requests the model name of the balance.
?TN?KL

Outputs the status of the key lock (function to disable all keys) settings.

?LK

Outputs the status of the specified key lock (disable) setting.

Command to set data
PT:∗∗∗.∗∗∗∗
g Sets the tare value.
#1

#1

#1

Command R assumes the point as zero and sets the display to zero.
Command TR cancels the tare weight when the displayed value is greater than zero.
The canceled tare value can be read using the command ?PT.
Command PT:∗∗∗.∗∗∗∗
g sets the tare value digitally.
An example of this command sets a negative target value and fills with the sample until thedisplay becomes zero. For details, refer to page 93.
Step 1 Place a container.
Step 2 Set the display to zero using the R command.
Step 3 Set a target value using the PT: command.

BM series8916.3.2. Acknowledge Code and Error Codes
When the " AK, Error code (erCd)" parameter of "Serial interface function (5if)" is set to "on", thebalance outputs <AK> code or error code to each command as follows:<AK> (06h)Acknowledge in ASCII code.
When the balance receives a command to request data and cannot process it, the balancetransmits an error code (EC, Exx).
When the balance receives a command to request data and can process it, the balance outputs
the data.
When the balance receives a command to control the balance and cannot process it, the balancetransmits an error code (EC, Exx).
When the balance receives a command to control the balance and can process it, the balancetransmits the acknowledge code.
<AK> (06h)Acknowledge in ASCII code.
Among commands to control the balance, the following transmit the acknowledge code bothwhen the balance receives the command and when the balance has accomplished the command.
If the command cannot be processed properly, the balance transmits an error code (EC, Exx).
This error can be resolved using the CAL command. xx is error code number.
CAL command(Calibration command using internal mass)
ON command(Display ON command)
P command(Display ON/OFF command)
R command(RE-ZERO command)
TR command(Tare command)
TST command(Calibration test command)
When a communication error has occurred due to external noise, or a parity error has occurred
due to transmission error, the balance transmits an error code (EC, Exx). In this case, send thecommand again. xx is error code number.

16.3.3. Settings Related to RS-232C
Concerning the RS-232C, the balance has two functions: "Data output (dout)" and "Serial interface(5if)". Set each function as necessary.

90

BM series16.3.4. Command Examples
This example uses "erCd on" of "5if" so that the <AK> (06h) code is output.

ON command (turning the display on)
Computer

Time

BalanceStandby mode

ON command

Command received
All segments

All segments are displayed
Command completed
Zero display

R command (Re-zeroing the display)
Computer

Time

Balance
Weighing mode

R command

Command received
In process
Command completed
Zero display

CAL command (Calibration with internal mass)
Computer

Time

BalanceZero display

CAL command

Command received
Command completed
Zero display

BM series

91Error code

This example is of an error using the R command. "erCd on" is used. The balance transmits an error
code when the received command cannot be achieved.
Computer

Time

Balance

R command

Weighing mode (unstable)
Command received
In process
When the R command cannot be
achieved due to unstable weighing:

CAL command

Error code
When the CAL command is received, thebalance returns to the weighing mode.
Command completed.
Weighing mode

Weighing with a tareThis example uses "erCd on" of "5if" so that the <AK> (06h) code is output.
Computer

Time

Balance

R command
Sets the display to zeroCommand received
In process
Command completed
Zero display
Place a container
TR command
Tares
Command received
In process
Command completed
Zero display

S command(Net value)?PT command(Tare value)
92

BM series

Setting a negative target value and filling with a sample until the display
becomes zeroThis example uses "erCd on" of "5if" so that the <AK> (06h) code is output.
Computer

Time

Balance
Place a container
Before commandexecution

R command

Command received
In process
Command completed

PT: command to set a target weight of 10 g

Zero display
Command received
Target weight display
Fill with sample until thedisplay becomes zeroBM series

9317. Key Lock Function
Sending specified commands to the balance will lock the keys on the balance to disable the key
functions. This is useful for controlling the balance only by an external device such as a personal
computer.
Even if the keys are locked, key operations using commands are available. For details oncommands to operate the keys, refer to “16.3. Commands”.
The key lock state can be checked using the command to request the state of the balance keys.
The key lock state is maintained until the balance receives the key unlocking command or thebalance is turned off by removing the AC adapter.
The key lock function (KL command and LK command) is available for balances with software version
1.660 or later.

17.1. Locking All the Keys
Using the KL command, all the keys on the balance can be disabled.
Command string

Description
KL:000 Unlocks all the keys.
(Enter 000 or 001 in place of ∗∗∗.) KL:001 Locks all the keys
?KL
Requests the state of the all key lock function.
KL,000 All keys unlocked.
KL,001 All keys locked.
KL:∗∗∗

94

BM series17.2. Locking the Specified KeysEntering numerical values ∗∗∗∗∗ to the LK command will lock specified keys on the balance to disable
their key functions. Set the numerical values ∗∗∗∗∗ by adding the decimal numbers converted from bits
assigned to each key as shown below.
Bits
0
1
2
3
4
5
6
7

Decimal
1
2
4
8
16
32
64
128

Keys
ON:OFF
CAL
MODE
RANGE
PRINT
RE-ZEROSELECT
ION

Example 1: Locking all the keys excluding the PRINT key
1 Add the decimal numbers corresponding to the keys to be locked.
1 (ON:OFF) + 2 (CAL) + 4 (MODE)+ 8 (RANGE) + 32 (RE-ZERO) + 64 (SELECT) +128 (ION)= 239
2 Send the LK command to the balance with the sum that is obtained in Step 1. LK:00239
Example 2: Unlocking all the keys
1 Send the LK command to the balance with 0, which indicates no keys to be locked. LK:00000
Command string
LK:∗∗∗∗∗(Enter the numerical values
00000 to 00255 in placeof ∗∗∗∗∗.)?LK

Description
Locks the specified keys.
e.g.: LK:00239 Locks all the keys excluding the PRINT key.

Requests the state of the specified key lock function.
e.g.1: LK,00239 Specified keys locked.
e.g. 2: LK,00000 All keys unlocked.

18. Checking the Balance Software Version
The balance specifications vary depending on the balance software
version. Follow the steps below to check the balance software
version.
1 Unplug the AC adapter from the balance and plug it back in.
2

P- ＊.＊＊＊
of ＊.＊＊＊.

is displayed with the software version in placeP- 1.663

BM series

9519. Maintenance19.1. Cleaning and Handling the Balance
Clean the balance with a lint free cloth that is moistened with warm water and a mild detergent.
Do not use organic solvents to clean the balance.
Do not disassemble the balance. Contact the local A&D dealer if the balance needs service or repair.
Use the original packing material for transportation.
Consider "3. Installing the Balance and Precautions" when handling the balance.

19.2. Error Codes
Display

Error code

Description

Internal error
EC,E00 If this error is displayed continuously, contact your local A&D dealer torepair the balance.
Stability error
The balance cannot stabilize due to an environmental problem. Check
EC,E11 around the pan. Prevent vibration, drafts, temperature changes, static
electricity and magnetic fields, from influencing the balance.
Press the CAL key to return to the weighing mode.
Internal mass error
EC,E16 Applying the internal mass does not yield a change in the mass value as
specified. Confirm that there is nothing on the pan and perform theweighing operation from the beginning again.
Internal mass error
EC,E17 The internal mass application mechanism does not function properly.
Perform the weighing operation from the beginning again.
Calibration weight error
EC,E20 The calibration weight is too heavy. Confirm the calibration weight value.
Press the CAL key to return to the weighing mode.
Calibration weight error
EC,E21 The calibration weight is too light. Confirm the calibration weight value.
Press the CAL key to return to the weighing mode.
Overload error
A sample beyond the balance weighing capacity has been placed on thepan. Remove the sample from the pan.
Weighing pan error
The mass value is too light. Confirm that the weighing pan and pan support
are properly installed. Press the ON:OFF key two times to return to theweighing mode. If the error still persists, calibrate the balance.
Sample mass error
The balance cannot store the sample for the counting mode or for thepercent mode because it is too light. Use a larger sample.

96

BM series

Display

Error code

Description
Unit mass error
The sample unit mass for the counting mode is too light. Storing andusing it for counting will cause a counting error.
Add samples to reach the specified number and press the PRINT key.
Pressing the PRINT key without adding samples will shift the balance tothe counting mode. But, for accurate counting, be sure to add samples.
Automatic response adjustment zero error
The automatic response adjustment cannot be performed because there
is something on the pan. Clear the pan. Press the CAL key to return to
the weighing mode.
Automatic response adjustment unstable error
The automatic response adjustment cannot be performed because themass value is unstable.
Check the ambient conditions such as breeze, vibration and magnetic
fields, also check the weighing pan.
Press the CAL key to return to the weighing mode.

(Check NG)

Clock battery error
The clock backup battery has been depleted.
Press any key and set the time and date. The clock and calendar
function works normally as long as the AC adapter is connected to thebalance. If this error appears frequently, contact the local A&D dealer.

(Blinking)(Illuminated)

Low battery error
Voltage of the power supply drops.
Confirm whether the correct AC adapter is used.
Memory full
The amount of weighing data in memory has reached the maximum
capacity. Delete data in memory to store new data. For details, refer to"12. Data Memory".
Memory full
The amount of calibration or calibration test data in memory has reachedthe maximum capacity (50 sets).
The data in memory will be deleted automatically to store new data. For
details, refer to "12. Data Memory".
Memory type error
Type of memory set in the function table and type of data stored are
different. For details, refer to "12. Data Memory".
Memory data error
A fatal error occurs in the stored data. To use the memory function,
delete all the old data and resolve the error. For details, refer to "12.1.
Notes on Using Data Memory".

Communications error
EC,E00 A protocol error occurred in communications.
Confirm the format, baud rate and parity.
Undefined command error
EC,E01 An undefined command was received.
Confirm the command.
BM series

97

Display

Error code

Description

Not readyA received command cannot be processed.
Examples:The balance received a "Q" command, but not in the weighing mode.
EC,E02The balance received a "Q" command while processing a RE-ZEROcommand.
Adjust the delay time to transmit a command.
Timeout error
When the timeout parameter is set to "t-Up on", the balance did not
EC,E03
receive the next character of a command within the time limit of one
second. Confirm the communication.
Excess characters error
EC,E04 The balance received excessive characters in a command.
Confirm the command.
Format error
A command includes incorrect data.
EC,E06 Example:
The data is numerically incorrect.
Confirm the command.
Parameter setting error
EC,E07 The received data exceeds the range that the balance can accept.
Confirm the parameter range of the command.
Other error code

If an error described above cannot be resolved or other errors are
displayed, contact the local A&D dealer.

19.3. Other Display
When this indicator blinks, automatic self calibration is required. The indicator
blinks when the balance detects changes in ambient temperature. If the balance
is not used for several minutes with this indicator blinking, the balance performs
automatic self calibration. The blinking duration depends on the operating
environment.
Note The balance can be used while this indicator is blinking. We recommend that you
perform automatic self calibration for precision weighing.
This is the display to prompt you to enter a password. When the password function isused, the correct password must be entered for the balance to enter the weighingmode.
For details, refer to "15. Password Function".

98

BM series19.4. Checking the Balance Performance and Environment
The balance is a precision instrument. When the operating environment or the operating method
is inadequate, correct weighing cannot be performed. Place a sample on the pan and remove it,
and repeat this several times. If the balance seems to have a problem with repeatability or toperform improperly, check as described below. If improper performance persists after checking,contact the local A&D dealer for repair.

Checking that the operating environment or weighing method is proper
Operating environment
Is the weighing table solid enough?
Is the balance level?
Is the operating environment free from vibration and drafts?
Is there a strong electrical or magnetic noise source such as a motor near the balance?

Weighing method
Does the weighing pan edge touch anything? Is the weighing pan assembly installed correctly?
Is the RE-ZERO key pressed before placing a sample on the weighing pan?
Is the sample placed in the center of the weighing pan?
Is the fine range ring installed for weighing with a readability of 0.01 mg for the BM-252?
Is the fine range ring and small fine range ring installed for weighing with a readability of 0.001 mg
for the BM-5, BM-5D, BM-20 and BM-22?
Is the tabletop breeze break (M) installed for weighing with a readability of 0.001 mg for the BM20 and BM-22?
Has the balance been calibrated using the internal mass?
Has the balance been warmed up for one hour before weighing?

Sample and containerHas the sample absorbed or lost moisture due to the ambient conditions such as temperature andhumidity?
Has the temperature of the container been allowed to equalize to the ambient temperature?
Is the sample charged with static electricity? Is the built-in ionizer (page 30) used to discharge thesample charged with static electricity.
Is the sample a magnetic material such as iron? Cautions are required when weighing magnetic
materials.

Checking that the balance performs properly
Check the balance repeatability using an external weight. Be sure to place the weight in thecenter of the weighing pan.
Check the balance repeatability, linearity and calibrated value using an external weight with aknown value.
Check whether the calibration is performed correctly. If an error occurs and the calibration cannot
be performed quickly, the balance may not measure correctly.

19.5. Asking for Repair
If the balance needs service or repair, contact your local A&D dealer.
The balance is a precision instrument. Use much care when handling the balance and observe
the following when transporting the balance.
Use the original packing material for transportation.
Remove the weighing pan, pan support, rings and dust plate from the balance.
BM series

9920. Specifications
BM-5D
BM-20
5.2 g
22 g
2.1 g
5.20008 g
22.000084 g*1 2.100009 g
0.01 mg0.001 mg0.001 mg*20.01 mg
0.0025 mg*2 0.004 mg±0.02 mg
±0.010 mg±0.010 mg
Approx. 8 seconds
Approx.
10 seconds
Approx. 10 seconds

BM-22
22 g
Weighing capacity
5.2 g
5.1 g
22.00008 g
Maximum display
5.200084 g
5.100009 g*10.01 mg
Readability
0.001 mg0.001 mg*20.01 mg
Repeatability
0.0012mg(Standard deviation)
0.004 mg*2±0.02 mg
Linearity±0.010 mg±0.010 mg
Approx. 8 seconds
Approx.
Stabilization time
(Typical at FAST)
10 seconds
Approx. 10 seconds
Sensitivity drift±2 ppm/°C (10 °C to 30 °C, Automatic self calibration: OFF)
Operating environment
5 °C to 40 °C, 85 % RH or less (No condensation)
Display refresh rate
5 times/second or 10 times/second±1.5 °C, Humidity ±10 %, Barometric pressure ±10 hPa
Environmental sensors Resolution: Temperature
Applicable range: 5 °C to 40 °C
Minimum unit
0.1 mgmass
Number of
10, 25, 50 or 100 pieces
samples
Minimum 100%
10 mg
reference mass
Readability
0.01 %, 0.1 %, 1 % (Depends on the reference mass stored.)Interface
USB and RS-232C
5g
5g
20 g
20 g
2g
2g
10 g
10 g
External calibration
1g
1g
5g
5g
weight2g
2g
1g
1g
Weighing pan:
φ25
Size of loading area for
Filter weighing:
φ50, φ95
weighing mm
Micro tube holder: φ12External dimensions
259(W) x 466(D) x 326(H) mm
Power consumption: Approx. 30 VA (supplied to the AC adapter )Power supply &Confirmthat the adapter type is correct for the local voltage and power
AC adapter type
receptacle type.
Percent Counting
mode
mode

BM-5

Mass

Approx. 10 kg

The operating environment with no excessive changes in ambient temperature and humidity, no
vibration and drafts, no influence by magnetic fields and static electricity.
The internal mass may change due to corrosion or other damage caused by the operating environment,or due to aging. Check the internal mass periodically and correct the internal mass value if necessary.
*1: Even when a tare weight beyond the precision range is placed, the weighing sample can be weighed in
the precision range if using the smart range.
*2: Repeatability using a 1 gram weight within the weighing capacity (when the tabletop breeze break (M) isused).
100

BM seriesBM-252

BM-200BM-300BM-500Weighing capacity

250 g

220 g

320 g

520 g

Maximum display

250.00084 g

220.0084 g

320.0084 g

520.0084 g

Readability

0.01 mg

Repeatability(Standard deviation) *3

0.03 mg

0.1 mgLinearity±0.10 mg±0.2 mg

Stabilization time
(Typical at FAST)
Sensitivity drift
Operating environment
Display refresh rate
Environmental sensors
Percent Counting
mode
mode

Minimum unit
mass
Number ofsamples
Minimum 100%
reference mass
Readability
Interface
External calibration
weightSize of loading area forweighing mm
External dimensions
Power supply &AC adapter type
Mass

0.0 mg
0.2 mg±0.3 mg±0.5 mgApprox.
Approx. 3.5 seconds
8 seconds±2 ppm/°C (10 °C to 30 °C, Automatic self calibration: OFF)
5 °C to 40 °C, 85 % RH or less (No condensation)
5 times/second or 10 times/second
Resolution: Temperature ±1.5 °C, Humidity ±10 %, Barometric pressure ±10 hPa
Applicable range: 5 °C to 40 °C
0.1 mg10, 25, 50 or 100 pieces
10 mg
0.01 %, 0.1 %, 1 % (Depends on the reference mass stored.)
USB and RS-232C
200 g
200 g
300 g
500 g
100 g
100 g
200 g
300 g
50 g
50 g
100 g
200 g
20 g
50 g
100 g
10 g
50 g
Weighing pan:
φ90
Micro tube holder: φ12 (Option)
259(W) x 466(D) x 326(H) mm
Power consumption: Approx. 30 VA (supplied to the AC adapter )Confirm that the adapter type is correct for the local voltage and power
receptacle type.
Approx. 10 kg

The operating environment with no excessive changes in ambient temperature and humidity, no
vibration and drafts, no influence by magnetic fields and static electricity.
The internal mass may change due to corrosion or other damage caused by the operating environment,or due to aging. Check the internal mass periodically and correct the internal mass value if necessary.
*3: Repeatability using a 100 gram weight within the weighing capacity.

BM series10120.1. External Dimensions

141 Opening

140 Opening

Opening 115

Above pan 250

A:Diameter of the weighing pan
BM-5, BM-5D,
BM-20, BM-22
BM-252, BM-200
BM-300, BM-500

B:Height of the weighing pan

Weighing pan: φ25
Weighing pan for filter: φ50, φ95

Weighing pan: φ90

Weighing pan: φ90

Unit: mm
C:The inside diameterof the test tube holder
φ12
φ12 (Option)

50
514

Tabletop breeze break (M)

514

368

211 (Aperture)

318

350
10 (Notch)
52 (Aperture)
250 (Aperture)

102

278
(Aperture)35

BM series

20.2. Options and Peripheral Equipment
Ethernet Interface

BM-08

The interface to connect the balance to a LAN.
Accessory: "WinCT-Plus" data communication software.
The software can acquire data from multiple balances
connected to a LAN.
The software can control these balances with commands.
The software can acquire data transmitted from balances.
Example: When pressing the PRINT key of the balance,data is output and is acquired by the computer.
The stored data can be used with Microsoft EXCEL (ifinstalled).

Pipette Accuracy Tester

BM-014Note This option cannot be used for the BM-5
and BM-5D.
This option can be used to inspect the volume
dispensed from the pipette.
The accessory evaporation trap is used to preventthe evaporation of the test liquid inside it.
The WinCT-Pipette software converts the test liquidmass into a volumetric value.

Electrode Unit of the Ionizer

5 mL, 30 mL
Sample cup

AX-BM-NEEDLESET(4 pieces)

Use these electrode units for replacement parts of theionizer built into the balance.
Replace all four units with new ones at the same time.
Refer to "6.5. Ionizer " for the replacement.

Display Cover

AX-BM-031(5 pieces)This option is the same as the accessory display cover.

Micro Tube Holder

AX-BM-032 (for the BM-5/5D/20/22, standard accessory)
AX-BM-034 (for the BM-252/200/300/500)

This option is used when weighing with the general
micro tube or test tube under Φ 12 mm.
Note When using the micro tube holder for the
BM-5 and BM-5D:
The micro tube holder is approximately 2 gheavier than the standard pan (weighing
pan and pan support). When a micro tube
holder is used for the BM-5 and BM-5D, theavailable weighing range will be up to
approximately 3 g including the tare suchas a micro tube and test tube.
BM series
103

Micro tube holder

Micro tube

Test tube

Body Cover

AX-BM-033

Body cover

Cover during storage to prevent dust and dirt
contamination.
The cover can be used for the balance with the AC
adapter and other cables connected.
When removing the cover, take care so as not to
get its edge caught on the balance.
Specification
Material: Nylon
Color : Light gray

Slide Breeze Break

AX-BM-035 (for the BM-5/5D/20/22)

This option is attached to the weighing chamber
to reduce the effects of the surrounding environmentso as to improve weighing accuracy.

Aluminum Pans
This option is the same as the accessory aluminum pansused for weighing a very small amount of sample.
Name and description

Order code

View

Round aluminum analytical pan (L)φ15 0.8 mL

100 pieces AX-ROUND-PAN-L

Round aluminum analytical pan (M)φ12 0.3 mL

100 pieces AX-ROUND-PAN-M

Round aluminum analytical pan (S)φ80.05 mL 100 pieces AX-ROUND-PAN-S

AD-1653 Density Determination Kit
Note This option cannot be used for the BM-5, BM-5D, BM-20 and BM-22.
Weight in air
Weight in air - Weight in liquid
ExampleTemperature
0 °C
10 °C
20 °C
30 °C

x liquid density = sample density

10.0000 g
x 0.9970 g/cm3 = 21.4 g/cm3
10.0000 g － 9.5334 g
Liquid density
0.99984 g/cm3
0.99970 g/cm3
0.99820 g/cm3
0.99565 g/cm3
104

BM seriesOptionAD-8127: Multi printerSmall dot impact printer that connects to the balance via the RS-232C interface.
Statistical calculation mode, calendar/clock function, interval printing mode, chart printing mode,
dump printing mode
AD-1691: Balance environment analyzer
During the routine inspection, repeatability and the minimum weighing value can be easily checked.
Also, this calculates measurement uncertainty and supports environmental evaluation of the balance.
This analyzer can be easily carried to the balance site, so more than one balance can becontrolled using this analyzer.
AD-1687: Weighing environment logger
A data logger equipped with 4 sensors for temperature, humidity, barometric pressure andvibration that can measure and store environmental data. When connected to the RS-232C
interface of the balance, the AD-1687 can store environmental data along with weighing data.
Therefore, it is possible to store data in an environment where a computer cannot be used.
The stored data can be read to a personal computer using USB. As the AD-1687 is recognized
as USB memory, special software is not required to read the data.
AD-1688: Data logger
When connected to the RS-232C interface of the balance, the AD-1688 can store the data inan environment where a personal computer cannot be used.
AD-8526: Ethernet converter
This option can be used to connect the RS-232C interface of the balance to the Ethernet (LAN) port of acomputer. This allows management of the balance weighing data with a computer connected to a network.
AD-8527: Quick USB adapter
This option transmits the weighing data directly to software applications such as Excel and Word.
AD-8920A: Remote display
Connected to the balance using the RS-232C interface.
AD-8922A: Remote controller
This option can be connected to the balance using the RS-232C interface and can control thebalance remotely. Various options such as comparator output or analog output are available.
AX-USB-9: USB converter
Adds a COM port to a personal computer.
Enables bi-directional communication between the personal computer and the balance when a
USB driver is installed.
Can use serial communication software such as WinCT on a personal computer without COM ports.
An RS-232C cable is provided to connect the USB converter to the balance.
AD-1671: Anti-vibration table
Approximately 27 kg, Artificial stone (Terrazzo).
Use this table when unstable weighing is caused by vibration coming from the floor.
Use the AD-8922A remote controller to avoid a weighing error by a slight table tilt that key
operation may make.
AD-1672/AD-1672A Tabletop breeze break (Large)
Large sized table breeze breakProtects the balance from wind from sources such as air conditioning or people passing by,
thereby reducing balance weighing errors.
The transparent panel assembly consists of antistatic plastic material that protects the balancefrom static electricity.
Samples can be inserted or removed through the opening on the front.
AD-1672: 680(W) x 600(D) x 720(H) mm, AD-1672A: 680(W) x 584(D) x 720(H) mm
BM series105AD-1676: Tabletop breeze break (Medium)( for the BM-5/5D/20/22, standard accessory)
A tabletop breeze break of a size best suited for the BM series balances.
Protects the balance from wind from sources such as air conditioning or people passing by,
thereby reducing balance weighing errors.
The transparent panel assembly consists of antistatic plastic material that protects the balancefrom static electricity.
Sliding panels on the right and left side enable samples to be inserted or removed from each side.
368(W) x 514(D) x 350(H) mm (Including the handle)
AD-1682: Rechargeable Battery
This option allows use of the balance in a place where AC power is not available.
AD-1683: DC static eliminator
This static eliminator eliminates static electricity to prevent weighing errors caused by static
electricity during measurement.
This direct current and windless type of eliminator is the most suitable for precisely weighing powder, etc.
Small size, light weightAD-1684A: Electrostatic field meter
This option measures the amount of the static charge on the sample, tare or peripheral
equipment and displays the result.
If those are found to be charged, discharge them using the AD-1683 DC static eliminator.
AD-1689: Tweezers for calibration weight
A pair of tweezers ideally suited for holding calibration weights of 1 g to 500 g.
AD-8529PC-W: Bluetooth converter (for connecting a personal computer)*This option connects a personal computer to the balance wirelessly (via Bluetooth) up to 10 m.
Driver installation is required.
AD-8529PR-W: Bluetooth converter (for connecting a printer)*This option connects a printer to the balance wirelessly (via Bluetooth) up to 10 m.
*Note on the AD-8529PC-W and AD-8529PR-W
The two products may require certification for compliance with local laws pertaining to radio
broadcast and equipment for wireless communication. Please refer to the A&D website forcountries where the products are already certified for use.
AX-SW137-PRINT: Foot switch print function with a plug
The foot switch has the same function as the PRINT key.
AX-SW137-REZERO: Foot switch rezero function with a plug
The foot switch has the same function as the RE-ZERO key.
AX-HOLDER-SET: Sample cup holder
Note This option cannot be used for the BM-5, BM-5D,
BM-20 and BM-22.
A set of holders to secure a sample cup such asa test tube, centrifuge tube or micro tube.

Centrifuge tube
secured slantingly

Sample cup holder usedas test tube stand

Large

Medium Small

Sample cup holder usedas holder for micro tube

106

BM series

21. Terms/Index
21.1. Terms
Calibration

Adjustment of the balance so that it can weigh accurately.

Calibration weight

A weight used for calibration.

Data number

Numbers assigned sequentially when weighing data or unit weight is stored.

Digit

The minimum weighing value available. Used for the balance, one digit is
the smallest mass that can be displayed.

Environment

Ambient conditions such as vibration, drafts, temperature, static electricity
and magnetic fields which affect the weighing operation.

External weight

A weight that you have.

GLP

Good Laboratory Practice.

GMP

Good Manufacturing Practice.

Internal mass

Built-in calibration weight.

ISOInternational Organization for Standardization.

Micro tube

2 mL and 1.5 mL micro tubes in the market canbe weighed with the micro tube holder.

Repeatability

1.5 mL 2 mL
Micro tube
Micro tube holder

Variation in measured values obtained when the same mass is placed andremoved repetitively. Usually expressed as a standard deviation.
Example: "Standard deviation = 1 digit " means that a weighing error may occur within±1 digit in the frequency of approx. 68% when weighing the same massrepeatedly.

Re-zeroTo set the display to zero.

Sensitivity drift

An affect that a change in temperature causes to the weighing data.
Expressed as a temperature coefficient.
Example: Temperature coefficient = 2 ppm/°C, If a load is 10 g and the temperaturechanges by 10°C, the value displayed changes by the following value.
0.000 002 ppm/°C x 10 °C x 10 g = 0.0002 g

Stabilization time

Time required after a sample being placed, until the stabilization indicatorilluminates and the weighing data is displayed.

Tare

To cancel the mass value of a container which is not to be included in theweighing data. Normally, refers to an operation of placing a container andsetting the display to zero.

Target weightAn external weight used for calibration test.

Zero point

A weighing reference point. Usually refers to the value displayed whennothing is on the weighing pan.

BM series10721.2. Index
ar-d
Zero after output.............................. 48, 51
at-f
Auto feed ....................................... 48, 85
Auto display-ON ............................................... 47, 50
Auto print ...................................................... 47, 51
AX-BM-031 Display cover ................................ 103
AX-BM-032 Test tube holder ............................ 103
AX-BM-033 Body cover ................................ 7, 104
AX-BM-034 Test tube holder ............................. 103
AX-BM-035 Slide breeze break .............. 6, 11, 104
AX-BM-NEEDLESET Electrode units .............. 103
AX-HOLDER-SET
Sample cup holder ....... 106
AX-MX-36
Tweezers ...........................................6
AX-ROUND-PAN-L
Aluminum pan,φ15, 0.8 mL...... 104
AX-ROUND-PAN-M Aluminum pan, φ2, 0.3 mL ...... 104
AX-ROUND-PAN-S Aluminum pan, φ8, 0.05 mL ..... 104
AX-SW137-PRINT Foot switch print function with plug ...... 31, 106
AX-SW137-REZERO Foot switch rezero function with a plug .. 31, 106
AX-USB-9
USB converter ........................ 105

Left, Upper, Lighting
Left, Upper, Lighting
Left, Upper, Blinking
Left, Lower, Lighting
Left, Lower, Blinking,Right, Upper, Lighting
Right, Upper, Lighting
Right, Upper, Blinking

Stabilization indicator .. 16, 24, 45
Process indicator......................16
Density mode ...........................16
Standby indicator......................16
Prior notice of calibration ...... 16, 37, 98
Shut side glass door ................24
Interval mode, Standby ............16
Interval mode, Action ...............16
Response indicator ......16
ION mark ........................................... 16, 30
Space mark............. 55, 56, 59, 61, 62, 63, 64
ON:OFF key ................................................16
CAL key ........................................... 16, 45
ION key ........................................... 16, 30
MODE key ..................................... 16, 17, 22
PRINT key ........................................... 16, 45
RANGE key .......................................... 16, 45
RE-ZERO key ....................................... 16, 45
SELECT key ................................................168922 AD-8922A control ................................. 31, 49

Barometric pressure ......................................... 16, 32
ba5fncEnvironment & Display ................ 45, 47
Baud rate ...................................................... 48, 84
beep
beep .................................................... 47
BM-014
Pipette accuracy tester .................... 103
BM-08
Ethernet interface......................... 4, 103
bp5
Baud rate ....................................... 48, 84Breeze break ring ................................................. 6, 9btpr
Data bit, parity bit............................. 48, 85
Bubble spirit level ......................................... 8, 10, 13

AC adapter ........................................ 7, 8, 10, 12, 15
ACAI.............................................................28
AD-1653 Density determination kit ................. 104
AD-1671 Anti-vibration table ........................... 105
AD-1672/ AD-1672A Tabletop breeze break (L) .... 12, 105
AD-1676 Tabletop breeze break (M)................... 12, 106
AD-1682 Rechargeable battery ...................... 106
AD-1683 DC static eliminator.......................... 106
AD-1684A Electrostatic field meter ................... 106
AD-1687 Weighing environment logger ......... 105
AD-1688 Data logger ................................. 7, 105
AD-1689 Tweezers for calibration weight ... 7, 106
AD-1691 Weighing environment analyzer...... 105
AD-8121B Printer ..................................... 52, 64, 85
AD-8127 Multi printer ........ 52, 58, 59, 60, 86, 105
AD-8526 LAN converter .................................. 105
AD-8527 Quick USB adapter .......................... 105
AD-8529PC-W Bluetooth converter................... 106
AD-8529PR-W Bluetooth converter................... 106
AD-8920A Remote display ................................ 105
AD-8922A Remote contoroller .......................... 105
Air buoyancy............................................................14
AK code .......................................... 90, 91, 92, 93
Anti-theft device .........................................................8
Anti-vibration table AD-1671 ........................ 12, 105
ap-b
Auto print difference............... 47, 51, 85
ap-p
Auto print polarity ................... 47, 51, 85

Cal
Automatic self calibration ................... 37
Cal e
Calibration error. Too heavy............... 96-Cal eCalibration error. Too light .................. 96
Cal inCalibraion using the internal mass ........... 38, 59
Calibration .......................................................... 107
Automatic self calibration................................... 37, 43, 98
Calibraion using the internal mass .................. 38, 43
Calibration using an external weight ............... 40, 43
Correcting the internal mass value ............ 42, 43, 49
Calibration report ............................ 38, 40, 59, 62, 65
Calibration test
Calibration test using an external weight ............. 41
Calibration test using the internal mass ............... 39
Calibration test report ..................... 39, 41, 61, 63, 65
CaloutCalibration using an external weight......... 40, 62
CC outCalibration test .......................... 41, 63
CC in Calibration test ................................. 39, 61
CH e
CHECK E ......................................... 34, 97
CH ng CHECK NG ...................................... 34, 97
108

BM seriesCl adj Clock........................................... 47, 54, 57
Clear Delete memory data ........................ 69, 70
Clr
Initializing the balance ................ 44, 65, 69
Clr
Memory type error...................................97
Clr go Initialization, Perform...............................44
Clr no Initialization, Cancel ................................44
Command .......................................... 89, 91, 92, 93
Cond
Condition ............................... 34, 35, 47, 49
Container ................................................ 24, 27, 29
Counting mode ........................................................27
CR
Carriage return........... 55, 59, 61, 62, 63, 64
Crlf
Terminator ..................................... 48, 85, 89
C5 in Internal mass correction................... 42, 49

erCd AK, Error code .................. 49, 90, 91, 92, 93
err
Memory data error .................................... 97
Error code .......................................... 49, 90, 92, 96
e-5
External control Input ......................... 31, 49
Ethernet...................................................... 4, 103
Evaporator trap............................................... 50, 103
External key jack .......................................................8-dWeighing data ..........................................68
d 1.0000 Initial density ...........................................73
data
Data memory ....................... 47, 65, 66, 69
Data bits, parity bits .......................................... 48, 84
Data format .......................................... 48, 52, 55, 85
Data memory .................................................... 47, 65
Data memory function .............................................65
Data number....................................... 48, 54, 65, 107
Data output .............................................................48
Data output mode............................................. 47, 51
Data output pause ......................................................48
Date.......................................... 16, 48, 54, 57
d-dt
Door Sensor...........................................49
Decimal point.............................................. 47, 50, 53
Density............................................ 4, 72, 73, 74
Density mode............................................ 21, 72
Digit.......................................................... 107
Dimensions .................................................. 100, 101
Discharge electrode ....................................... 30, 103
Display character table............................................58
Display cover ................................................ 7, 8, 103
Display lock function......................................... 47, 50
Display refresh rate .......................................... 47, 50
d-no Data number............................... 48, 54, 67, 85
door Door sensor function ...................................49
dout Data output ............................... 47, 48, 51, 85
d5 fnc Density function ................................. 49, 72
d-t
Weighing data with time and date .............68
Dust plate ...........................................................6, 9

Glass door handle .....................................................8glp
GLP output .............................. 59, 61, 62, 63
GLP......... 38, 40, 48, 58, 59, 60, 62, 64, 107
GMP.......................................................... 107
Grounding ............................................................ 14
Grounding terminal ....................................................8

FAST...................................................... 34, 35
FCC...............................................................4
Filter.......................................................... 6, 9
Fine range ring ............................................... 6, 9, 14
fUl Memory full ..................................... 67, 69, 97

Humidityid
ID number setting................................ 49, 58
ID number ................................................ 49, 53, 58
Influence of magnetic fields.............................. 12, 14
Influence of static electricity ................................... 14
info
GLP output ......48, 59, 60, 61, 62, 63, 64, 69
Inhibition........................................................ 43
Initializing ............................................................ 44
intInterval time............................................. 48
Interval mode......................................... 4, 47, 51
Interval time ............................................................ 48
ion
Neutralizing time.................................... 49
Ion............................................................ 30
ionfnc Ionizer function ............................... 31, 49
Joint handle ...............................................................8KeyCAL Key ............................................................... 16, 45
ION Key ............................................................... 16, 30
MODE Key.................................................16, 17, 22, 24
ON:OFF Key ................................................................. 16
PRINT Key ............................................................. 16, 45
RANGE Key .......................................................... 16, 45
RE-ZERO Key ................................................ 16, 24, 45
SELECT Key ............................................................... 16
key lock function ................................................. 4, 94
KL command .......................................................... 94e
Weighing error. Too heavy .........................96-e
Weighing error. Too light ............................96
Electrode unit of the ionizer................................ 8, 30
Electrostatic field meter AD-1684A ................... 106
Environment ......................................... 14, 16, 32, 99
Environmental sensor ...................................... 16, 32
BM series............................................................ 32

ldin
109

Liquid density input ....................... 49, 72, 73

Leveling foot ................................................. 8, 10, 13
LF
Line feed ..................... 55, 59, 61, 62, 63, 64
Linearity.................................................. 100, 101
LK command .................................................... 94, 95
loSample mass error ........................... 27, 96
loc no. Password input ................................. 49, 81
locfnc Password function ............................ 49, 75
Magnetic material ......................................... 4, 14, 71
Mass (of the product) ................................... 100, 101
Maximum display ......................................... 100, 101
Micro tube holder...................................... 6, 100, 101MID.
...................................................... 34, 35
Readability .................................................. 100, 101
Neutralization...........................................................30
Operating environment ................................ 100, 101
outReport output .................................. 68, 70
out go Report output, Start ........................ 68, 70
out no Report output, cancel ..................... 68, 70
Pan support ...........................................................6, 9
Parity...................................................... 48, 84
pa55
Password ............................ 16, 49, 75, 98
password function ............................................ 49, 75
Percent mode ..........................................................29
Permission .............................................................43
Pipette.................................................... 50, 103
ploc
Display lock function ....................... 47, 50
pnt
Decimal point .................................. 47, 50
p-on
Auto display-ON ............................. 47, 50
Power consumption ..................................... 100, 101
Power supply .......................................... 15, 100, 101
Prior notice of calibration ............................ 16, 37, 98
Processing indicator Left, Upper, Lighting.....16prt
Data output mode ... 47, 51, 65, 85, 86, 88
p5
Function selection mode .......... 42, 43, 44
pU5e
Data output pause ............................. 48, 85
reCall Display format for memory data ..... 68, 69
recend End block of output ................................64
Relative Humidity ............................. 12, 14, 100, 101
Remote Controller AD-8922A ..............................12
rep te5t Repeatability test ...................................33
Repeatability ................................... 33, 100, 101, 107
RESPONSE ........................... 3, 4, 16, 34, 35, 47, 49
Round aluminum pan ....................................... 6, 104
RS-232C .............................................. 4, 8, 84, 87
RsCom Command mode for WinCT ..................87

RsKey
rtc pf

Data output mode for WinCT................ 87
Clock battery error .......................... 57, 97

Sensitivity drift............................................... 100, 101
Separation plate ................................. 7, 8, 10, 12, 30
Serial interface..................................................... 48, 49
5-id
ID number output .................. 48, 53, 67, 85
5if
Serial interface....................... 48, 51, 52, 85
SLOW...................................................... 34, 35
Smart range............................................ 4, 19, 20, 26
5pd
Display refresh rate ................... 47, 50, 51
Specific gravity.................................................. 72, 74
Stability........................................................ 3, 34
Stability band width ........................................... 47, 50
Stabilization indicator................................. 16, 45
Stabilization time................................... 100, 101, 107
Standard deviation.................................................. 33
Standby indicator Left, Lower, Lighting......... 16
5tart
Title block of output ............................... 64
Static electricity ................................................. 14, 30
5t-b
Stability band width .......................... 47, 50
5-td
Time/Date output .............. 48, 57, 65, 66, 85
Stop bit............................................................ 84
5-tp
Temperature output................................... 48
Stream mode .................................................... 47, 51
t 25
Initial temperature ................................. 73
Tare.............................................. 24, 92, 107
Tare weight ............................................................ 24
Temperature .....................4, 14, 16, 54, 74, 100, 101
Temperature output .......................................... 32, 48<TERM> Terminator ..................... 59, 61, 62, 63, 64
Terminator ..................48, 55, 59, 61, 62, 63, 64, 89
Test tube holder .................................................... 103
Time.......................................... 16, 48, 54, 57
Timeout t-Up ...................................................... 49
trc
Zero tracking ................................... 47, 50
t-Up
Timeout ................................................. 49
Tweezers ...............................................................6type
Data format ................................. 48, 52, 85
Underhook ............................................................ 71
Unit........................16, 17, 18, 21, 22, 26, 56
Gram.............................................17, 18, 22, 56
Milligram.......................................17, 18, 22, 56
Counting mode ....................17, 18, 22, 27, 56
Percent mode .......................17, 18, 22, 29, 56
Ounce (Avoir) .............................17, 18, 22, 56
Troy Ounce .................................17, 18, 22, 56
Metric carat .................................17, 18, 22, 56
Momme ........................................17, 18, 22, 56
110
BM series

Pennyweight ............................... 17, 18, 22, 56
Grain (UK) ................................... 17, 18, 22, 56
Tael (preset in the factory) ...... 17, 18, 22, 56
Tola (India)................................... 17, 18, 22, 56
Messghal ..................................... 17, 18, 22, 56
Density mode ............................. 21, 56, 72, 74
Unit Unit selection mode................................21USB.................................................... 4, 8, 88

Calibration weight........................ 40, 62, 100, 101, 107External weight ............................................. 40, 41, 107
Internal mass .............................. 33, 37, 38, 39, 42, 107
Internal mass correction ................................................ 49
Target weight value............................................ 41, 107
Weighing pan........................................................ 6, 9
WinCT Windows Communication Tools Software.............. 4, 87
WinCT-Pipette Software to inspect pipette ........ 103
WinCT-Plus
Software to connect to LAN ....... 103

Water evaporation ...................................................50
Water temperature ..................................................73
Weighing capacity ........................................ 100, 101
Weighing data logger AD-1688 ..........................4, 7
Weighing mode .......................................... 17, 21, 22
Weighing pan ............................................................6
Weighing pan for filter ...........................................6, 9
Weighing response .................................................34
WeightAdjustable range .........................................................36

BM series

ymd

Year, month, day ................................... 57

Zero
Re-zero ............................................................. 16, 107
Zero after output............................................................. 48
Zero point ................................................................... 107
Zero tracking.......................................................... 47, 50

111

MEMO

112

BM series3-23-14 Higashi-Ikebukuro, Toshima-ku, Tokyo 170-0013, JAPANFax: [81] (3) 5391-1566
Telephone: [81] (3) 5391-6132

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