AD-4406A
OP-03/04/05/07/08/11
WEIGHING INDICATORINSTRUCTION MANUAL

1WMPD4002536C

This Manual and Warning Definitions
The warnings described in this manual have the following meanings:

CAUTION
Note

Disregarding the caution could result in loss ofimportant data or damage to the instrument
Provides information useful for the user to operate theinstrument.

This is a hazard alert mark.

© 2015 A&D Company, Limited. All rights reserved.
No part of this publication may be reproduced, transmitted, transcribed, or translated
into any language in any 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 thismanual are subject to change for improvement without notice.

Contents
1. Compliance .................................................................................................................... 5
1.1.

Compliance with FCC Rules ............................................................................................. 5

2. Introduction .................................................................................................................... 6
3. Installation and Precautions ......................................................................................... 7
3.1.
3.2.
3.3.
3.4.
3.5.
3.6.
3.7.

Installation and Precautions .............................................................................................. 7
Power Supply .................................................................................................................... 7
The Load Cell Connections ............................................................................................... 8
Adjustment of the Load Cell Output .................................................................................. 8
Verifying Load Cell Output and Input Sensitivity ............................................................... 9
Installing an Option Board ................................................................................................. 9
Attaching the Display Stand (OP-11) ................................................................................ 9

4. Description of Panels and Symbols ........................................................................... 10
4.1.
4.2.
4.3.
4.4.

Front Panel Description ................................................................................................... 10
Rear Panel Description ................................................................................................... 11
Other Displays and Symbols ........................................................................................... 11
Accessories ..................................................................................................................... 11

5. Calibration .................................................................................................................... 12
5.1.
Items of the Calibration Mode ......................................................................................... 12
5.2.
Calibration Procedure...................................................................................................... 13
5.2.1. Configuring a Weighing Instrument ............................................................................. 13
5.2.2. Specifying the Range and Unit .................................................................................... 14
5.2.3. Specifying the Resolution, Decimal Point Position and Format .................................. 14
5.2.4. Specifying the Weighing Capacity of the First Range ................................................. 15
5.2.5. Specifying the Second Range Resolution ................................................................... 15
5.2.6. Specifying the Second Range Capacity ...................................................................... 15
5.2.7. To Get Stabilized Data ................................................................................................ 15
5.2.8. Zero Calibration ........................................................................................................... 16
5.2.9. Span Calibration .......................................................................................................... 16
5.2.10. Exiting the Calibration Mode ....................................................................................... 17
5.3.
Weighing Range Function ............................................................................................... 18
5.3.1. Setting the Division and Range ................................................................................... 19
5.4.
Digital Linearization Function .......................................................................................... 19
5.5.
Gravity Compensation Function ......................................................................................... 20
5.5.1. The Gravity Acceleration Table ................................................................................... 21
5.6.

Calibration Error Code List................................................................................................. 22

AD-4406A Weighing Indicator

Page 3

6. Functions...................................................................................................................... 23
6.1.
6.2.
6.3.

Changing the Function Settings ......................................................................................... 23
F-Functions ..................................................................................................................... 24
CF-Functions .................................................................................................................... 31

7. Function keys F1 and F2 ............................................................................................. 32
8. Tare ............................................................................................................................... 33
9. Accumulation ............................................................................................................... 34
9.1.
9.2.

Preparation and Specification ......................................................................................... 34
Display and Operation ..................................................................................................... 35

10. Code Memory ............................................................................................................. 37
11. Comparison ................................................................................................................ 38
11.1. Weight Check Mode ........................................................................................................ 38
11.1.1. Condition Formula for Comparison ............................................................................. 39
11.1.2. Setting the Upper/Lower Limit Values ......................................................................... 39
11.2. Setpoint Comparison ....................................................................................................... 41
11.2.1. Description of Input Parameters and Outputs ............................................................. 41
11.2.2. Simple Batch ............................................................................................................... 42
11.2.3. Setting the Parameters of Setpoint Comparison ......................................................... 43

12. Hold Function ............................................................................................................. 44
12.1.

Setting the Hold Functions .............................................................................................. 44

13. RS-232C Interface (OP-04, OP-05, OP-08) ................................................................ 46
13.1. Specifications .................................................................................................................. 46
13.2. Data Format .................................................................................................................... 47
13.3. Command Format ........................................................................................................... 47
13.3.1. Commands to Request Data ....................................................................................... 48
13.3.2. Commands to Control the Indicator ............................................................................. 49
13.3.3. Commands to Set Parameters .................................................................................... 51
13.3.4. Commands for Hold Function ...................................................................................... 51
13.3.5. Commands to Set Serial Data Output Format (UFC) .................................................. 52
13.4.

UFC Command ............................................................................................................... 52

14. RS-422/RS-485, Relay Output (OP-03)...................................................................... 54
15. Relay Output & Control Input (OP-05) ...................................................................... 57
16. 4-20 mA Analog Output (OP-07) ............................................................................... 58
17. Current Loop Output (OP-08) .................................................................................... 59
18. Specifications ............................................................................................................ 61
18.1.

Dimensions...................................................................................................................... 62

Page 4AD-4406A Weighing Indicator

1.

Compliance1.1. Compliance with FCC Rules
This equipment has been tested and found to comply with the limits for a ClassA digital device, pursuant to part15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful interference when theequipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radiofrequency energy and, if not installed and used inaccordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely tocause harmful interference in which case the user will be required to correct
the interference at his own expense.

AD-4406A Weighing Indicator

Page 5

1. Compliance2.

Introduction

The AD-4406A is a compact weighing indicator that amplifies the signal from a loadcell, converts it to digital data and displays it as a mass value.
This indicator has the following performance:
Input sensitivity: ......................... 0.15 µV/division
Maximum display: ...................... 40000 divisions
Display update rate: ................... 10 times/second approximately
Input voltage range: ................... -35 mV to +35 mV
The following standard functions are available:
The HiHi/Hi/OK/Lo/LoLo limit comparison to check a mass value.
The setpoint comparison for batching applications.
Four code memories to store the above mentioned data.
The accumulation function to totalize these mass values and to count the
number of accumulations.
The hold function enables weighing a live animal.
UFC (Universal Flexi Coms) function to customize the protocol of outputting datausing the serial interface.
The following interfaces and the display stand are available as an option:
The RS-232C serial interface to communicate with a computer, printer or remote
display. This interface outputs data and can request weight data, enterparameters and control the state of the indicator. (Options: OP-04, OP-05,
OP-08)
RS-422/485, 3-Relay Outputs (Option: OP-03)
RS-232C, 3-Relay Outputs and 3-Control Inputs (Option: OP-05)
Analog Output (4-20 mA) (Option: OP-07)
RS-232C, Current Loop Output, 3-Relay Outputs and 1-Control Input (Option:
OP-08)
Only one interface can be installed at a time.
Display stand (Option: OP-11)
The calibration mode includes the following functions:
Setting of the minimum division (weighing interval) and the maximum capacity
Zero and span calibration
The weighing range function of the multi-interval weighing instrument (scale)
Digital linearization function
Gravity compensation function

2. Introduction

Page 6AD-4406A Weighing Indicator3.

Installation and Precautions

3.1. Installation and Precautions
The AD-4406A weighing indicator is a precision electronic instrument. Handle theindicator carefully.
The operating temperature is -10 to +40 (14 to 104 ).
Do not install the indicator in direct sunlight.
A malfunction or other problems may be caused by an unstable power source including
momentary power failure or instantaneous noise. Use a stable power source.
When an AC Adapter is used, please confirm that the local voltage and receptacle typeare correct for your indicator.
Use shielded cables for all connections. Connect the cable shields to the shieldterminal or case as an earth terminal.
Earth ground the indicator. Do not share the earth ground line with other electrical
power equipment.
Do not install the indicator in a place where it is apt to be charged with static
electricity, or where the relative humidity is less than 45%. Plastic and isolators are
apt to be charged with static electricity.

3.2. Power Supply
When an AC adapter is used
A stable power source must be used; an unstable power source which includes an
instantaneous noise component may result in a malfunction.
When standard batteries are used
Use six new size C batteries, preferably alkaline type.
Remove the battery cover. Press in and up on the end of the battery box. Slowly
release pressure on the battery box while holding it against the top of the battery
compartment. The battery box will slide out.
Insert the batteries into the battery box, taking care of the polarity of the batteries.
Then, insert the battery box, contact end first, into the battery compartment. Push it
in and towards the bottom. The battery box will hook onto the edge of thecompartment. Attach the cover over the battery box so that it will not fall out.
Rechargeable size C batteries can be used in place of standard batteries. For
details on how to use and charge the rechargeable batteries, refer to the battery
instruction manual.

AD-4406A Weighing Indicator

Page 7

3. Installation and Precautions

3.3. Load Cell Connections
Connect the load cell wires to the connector (receptacle), at the rear panel, using
the accessory load cell plug.
It is possible to connect a 4 wire cable provided that pins 1-2 and pins 3-4 areconnected, if the distance between the indicator and a load cell is shorter than 5m.
The output voltage of a load cell is a very sensitive signal. Place the load cell cableaway from any noise source.
It is possible to connect four 350 ohm load cells.
The load cell drive is 5VDC 5% between EXC+ and EXC-, the maximum current 60
mA.
Cable
Cable
Positive Sense
Positive Excitation Input

Load Cell Plug
Negative Excitation Input
Negative Sense
Negative Signal Output
Positive Signal Output
ShieldShieldLoad cellStandard
connection

Connection available fora cable shorter than 5 m.
(Recommended wire crosssectional area: 0.5 mm2 or greater)

3.4. Adjustment of the Load Cell Output
CautionUse a metal film resistor in the range of 50kohm to 500kohm with agood temperature coefficient, when adding a resistor to adjust a loadcell output. Use the largest resistance value possible in the range inwhich zero adjustment is possible. Solder this resistor at a point near
the load cell or the indicator.

In Case of Reducing the Output Voltage
When the zero output is too large, add a resistor
between EXC+ and SIG-.

Additional
resistor

In Case of Adding an Offset Voltage to the Output
When the zero output is too small, add a resistor
between EXC+ and SIG+.
Additional
resistor

3. Installation and Precautions

Page 8AD-4406A Weighing Indicator3.5. Verifying Load Cell Output and Input Sensitivity
The input sensitivity of the indicator is 0.15 µV/division or more. Satisfy the following
inequality, when you design a weighing instrument using the indicator and loadcell(s).
CautionA change in input voltage sensitivity is required to cause a one divisionchange in the display. Select as large an input sensitivity voltage as
possible so that the weighing interval becomes stable.
Consider the leverage if a lever is used.
Weighing instrument
using one load cell.

0.15 ≤E ∗B ∗D
A

Weighing instrument
using multi-load cell0.15 ≤E ∗B ∗D
A ∗N

Verification Example
Design:Load cell
Rated capacity
Rated output
Excitation voltage
Weighing interval
Weighing capacity

N=1
A=750 [kg]B=3 [mV/V]
E=5000 [mV]
D=0.05 [kg]
300 [kg]

A: Rated capacity of load cell [kg]
B: Rated output [mV/V]
D: Weighing interval [kg]
E: Excitation voltage [mV]
N: Number of load cells

5000 ∗ 3 ∗ 0.05
= 1 ≥ 0.15
750
Therefore, regard the instrument as agood design.

3.6. Installing an Option Board
Caution
Do not remove any screws other than described below.
This is the procedure for the interface (OP-03, OP-04, OP-05, OP-07 and OP-08).
Step 1 Remove the batteries or AC adapter from the indicator.
Step 2 Remove two screws from the rear blank panel.
Step 3 Remove the rear blank panel.
Step 4 Align the option board with both board guides and insert the board. Then theconnector between the main board and the option board will connect properly. If
the option board panel will not close completely, retry step 4 to insert the option
board correctly.
Step 5 Secure the option board panel using two screws.

3.7. Attaching the Display Stand (OP-11)
Caution
Do not remove any screws other than described below.
Step 1 Remove the batteries or AC adapter from the indicator.
Step 2 Secure the stand to both slide-rails with the bolts provided.
AD-4406A Weighing Indicator

Page 93. Installation and Precautions

4.

Description of Panels and Symbols

4.1. Front Panel Description
8
1

9

10

11
12

AD-4406A WEIGHING INDICATOR

2

ZERO

3

+/

TARE

F1

14

F2

15

ESC

ENTER

1

2

CAPACITY

13

3

16
CAL.

17
4

No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

5

Name
STABLE
NET
ZERO
READY
BATT
M+ (Accumulation)(Triangle mark)
HI/OK/LO
Data display
Unit of measure
ZERO key
key
TARE key
key
NET/GROSS key+/- key
F1 keyESC key
F2 keyENTER key
ON/OFF key
CAL key
CAL cover

4. Description of Panels and Symbols

6

7

18

Description
Indicates when the display is stable.
Indicates when the weight is the net weight.
Indicates when the displayed weight is in the Zero range.
Indicates the state of comparison or batching.
Indicates when the battery is low.
Indicates when there is a result of addition or accumulation.
Depending on the function selected, indicates various states.
Indicates the results of comparison.
Displays the weight data.
Unit used to weigh
The key to zero the current display.
The key to select the digit while in the setting mode.
The key to perform tare.
The key to select a value while in the setting mode.
The key to select net or gross weight in the display.
The key to select + or – of a value.
The key to execute the setting.
The key to proceed to the next step without storing the dataset.
The key to execute the setting.
Confirms settings and stores the value.
Turns the indicator on and off.
The key to select calibration.
Calibration protection cover.

Page 10AD-4406A Weighing Indicator4.2. Rear Panel Description

19
LOAD CELLDC IN.
7-10V
100mA

20

21

No.
19
20
21
22
23

Name
Battery cover
Grounding terminal
Power jackBlank panel
Load cell connector

22

23

Description
Battery compartment cover
Apply 7VDC to 10VDC.
Option space ( for OP-03, OP-04, OP-05, OP-07 or OP-08)
Connect the accessory load cell plug.

4.3. Other Displays and Symbols
Zero error when turning the display on. If the ESC
is pressed, the current weight value is displayed.

keyOverload display. Remove any load from the load cell
immediately. It may cause damage to the load cell.
Battery is low, change batteries immediately.

BATT

Low Battery, change batteries immediately.
Example of an error display.

4.4. Accessories

Accessories

AD-4406A Weighing Indicator

Instruction manual
Load cell plug
Capacity label
Annunciator label

Page 11

1
1
1
1

JM-NJC-207-PF

4. Description of Panels and Symbols

5.

Calibration

The indicator converts an input voltage from a load cell to a "mass" value anddisplays it. Calibration is the adjustment function so that the scale (indicator) canweigh correctly.

5.1. Items of the Calibration Mode
There are four items in the calibration mode.
How to enter the calibration mode:
In the weighing mode, press the CAL key which is located behind the CAL cover at
the lower right of the front panel. After CAL in is displayed for 2 seconds CAL 0 willappear. The required items should be selected and displayed with the ZERO key,then executed by pressing the ENTER key.
* The CAL cover is removed by sliding downward.
Required Items
CALSEt

CAL 0

Optional Items (Sub-functions)
Lnr 0
G SEt
Gravity compensation function

Sets capacity, resolution, decimal point position anddisplay format, weighing range and unit. These items
should be set first in order for the indicator to function
as a weighing instrument. Set values do not need to
be changed again unless the indicator itself is
replaced. For details, refer to “5.2.1. Configuring a
Weighing Instrument”.
Calibrates zero and span. This is required after
installation, to get accurate data. For details, refer to“5.2.8. Zero Calibration” and “5.2.9. Span Calibration”.

Performs digital linearization. Refer to “5.4. Digital
Linearization Function”.
Compensates for acceleration of gravity. Refer to“5.5. Gravity Compensation Function”.
Compensates for weighing error between thecalibration location and another weighing location
using gravity acceleration.

In the calibration mode, the keys have functions as follows:
When setting values, moves the cursor that is blinking.
When setting values, increments the value or displays another setting.
+/-

Displays another setting.
ESC
Proceeds to the next step without changing the set value.
ENTER Stores the set value and then proceeds to the next step.
5. Calibration

Page 12AD-4406A Weighing Indicator

CAL

CautionWrites all the set data into non-volatile memory and displays CALoFF. Then,press the ON/OFF key to turn the indicator off.
Note that the ON/OFF key does not function alone in the calibration mode. When avalue is mistakenly set, press the ESC key while holding the ON/OFF key to finish
the calibration mode without storing the value. After CAnCEL is displayed, press the
ON/OFF key to exit from the calibration mode and turns the indicator off.
The maximum display is less than or equal to 40000 divisions. This number
is calculated from the maximum capacity divided by the minimum division.
Check the accuracy of weighing instrument periodically.
Recommended mass, use a mass heavier than 2/3 maximum capacity.
Calibrate the scale, if it is moved to another location or the environment
has changed.
It is not necessary to set the gravity acceleration correction, when calibrating
the scale with a calibration mass at the place where the scale is used.
Enter the stable weight data while the STABLE mark is displayed. If
unstable data is used, it may cause a weighing error. Arrange thecondition using the F00 filter function.
The span calibration needs the zero calibration data. We recommendthat you perform the span calibration immediately after the zero
calibration.
If you use the dual range function of the multi-interval scale, perform the"Range Function", "Zero Calibration" and "Span Calibration".

5.2. Calibration Procedure
5.2.1.

Configuring a Weighing Instrument

This section explains how to specify the capacity, resolution, decimal point position anddisplay format, weighing range and unit. Perform this procedure when installing theindicator.
When CALSEt is displayed, enter this mode by pressing the ENTER key.
Specify the range and unit.
Single Range
Specify the resolution, decimal point position and format.
↓
Specify the weighing capacity.

AD-4406A Weighing Indicator

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5. Calibration

Dual Range<First range> Specify the resolution, decimal point position and format.
↓<First range> Specify the weighing range.
↓<Second range> Specify the resolution.
↓<Second range> Specify the weighing capacity.
For the range function, refer to “5.3. Weighing Range Function”.

5.2.2.

Specifying the Range and Unit

Step1

The range and unit of measure are displayed.
Range display :SinGL : single range
dUAL : dual range
To change the range function, use thekey
Unit display
The active unit is displayed. The unit can be changed;
such as kg or lb. Calibration is performed using the unit
displayed.
Press thekey to select a unit.
Press the +/- key to select a unit for calibration. The unit forcalibration (first unit) is displayed and the alternate unit (second unit)
is blinking.
ENTER
The key to store the data displayed and proceed to the next step.
ESC
The key to proceed to the next step without changing the data.

5.2.3.

Specifying the Resolution, Decimal Point Position and Format

Step 2 The resolution will be displayed as d 0.1 with decimal point. The indicator
displays triangle 1 and the first unit selected at the previous step.
Specify the position of the decimal point with the
key. Specify the display
format (point or comma) with the +/- key. Specify the resolution with the 1
key.
The decimal point format for serial data output is selected using the F-function
settings.
Press the ENTER key to store the parameters and proceed to the next step.
When pressing the ESC key, regardless of what is displayed, the indicator willproceed to the next step without changing the parameters.

5.Calibration

Page 14

AD-4406A Weighing Indicator5.2.4.

Specifying the Weighing Range of the First Range

Step 3 After displaying CAP for 2 seconds, single range or the weighing capacity will be
displayed. When dual range is used, CAP1 is displayed for 2 seconds. Triangle 1
will be displayed. Specify the range or the capacity with the
and
keys.
Press the ENTER key to store the parameter and proceed to the next step.
When pressing the ESC key, regardless of what is displayed, the indicator willproceed to the next step without changing the parameter. The next step is zero
calibration in single range or specifying the second range resolution in dual
range.

5.2.5.

Specifying the Second Range Resolution

Step 4 After displaying rAnGE2 for 2 seconds, the resolution with decimal point andtriangle 2 will be displayed. Specify the second range resolution in the same way
as the first range. The decimal point cannot be moved. Specify the second range
resolution greater than the first range.
Press the ENTER key to store the parameter and proceed to the next step.
When pressing the ESC key, regardless of what is displayed, the indicator willproceed to the next step without changing the parameter.

5.2.6.

Specifying the Second Range Capacity

Step 5After displaying CAP2 for 2 seconds, the capacity with unit and decimal point will be
displayed. Specify the capacity in the same way as the first range. The capactity
should be greater than the first range.
Press the ENTER key to store the parameter and proceed to zero calibration.
When pressing the ESC key, regardless of what is displayed, the indicator willproceed to zero calibration without changing the parameter.

5.2.7.

To Get Stabilized Data

Step 6 Maintain the following conditions to calibrate the scale (indicator) correctly.
Maintain a constant temperature, stable power and stable input voltage from theload cell.
Avoid direct sunshine or near the outlet of an air conditioner.
Do not install the scale (indicator) where there is a strong magnetic field.
Step 7 Turn the display on and leave it for several minutes.

AD-4406A Weighing Indicator

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5. Calibration

5.2.8.

Zero Calibration

Step 8 Check the CAL 0 display.
Zero
Select a zero calibration method to adjust the zero
point.
The adjustment method
Weighing input
with nothing on the
To step 9(Normal way)
weighing unit.
The numerical way to enter
Digital input
To step 10
a load cell output voltage.
Weighing Input
Step 9 Place nothing on the weighing unit. Press the ENTER

Place nothing on
the weighing unit
(No load)

key after the STABLE mark has turned on. The newzero point parameter will be stored. Proceed to step11.
ESC key ......... To proceed to step 11 without changing
the zero point parameter.
Caution Do not press the ENTER key while the STABLE

Turn on STABLE
F2
ENTER

mark is off (detecting motion). Arrange thecondition using the F00 filter function.

Stored input

Digital Input
Step10 Pressing the +/- key, a stored input voltage parameterof the zero point is displayed in the unit of mV/V. AdjustmV/V
the input voltage using the following keys.
key .......... To select a digit.
ZERO
TARE
key .......... To select a value.
ENTER key .... To store the zero point parameter andmV/Vproceed to the next step.
New input
F2
ESC key ......... To proceed to the next step without
+/-

ENTER

changing the parameter.
To Span Calibration

5.2.9.

Span Calibration

Step11 Check the capacity display after CAL F is displayed for 2 seconds.
Select a span calibration method to adjust the capacity.
Weighing a mass less thanthe maximum capacity
Weighing a maximum
capacity mass
Digital input
5.Calibration

The method to weigh a mass lessthan the maximum capacity.
The method to weigh a massequivalent to the maximum capacity.
The numerical way to enter a load cell
output voltage.
Page 16

To step 12
To step 14
To step 16

AD-4406A Weighing IndicatorWeighing a Mass less than the Maximum Capacity
Step12 Set a mass value using the following keys.
key .... To select a digit.
key .... To select a value.
Step13 Place a mass equivalent to the displayed value on
the weighing unit. Proceed to step 15.

Span

Maximum
To step 14, step 16
To step 12
ZERO

Weighing a Maximum Capacity Mass
Step14 Place a mass equivalent to the maximum capacity on
the weighing unit.
Step15 Press the ENTER key after the STABLE markNew mass
Mass ofmaximumturns on. Proceed to step 17.
ESC key ......... To proceed to step 17 withoutchanging the span parameter.
Caution Do not press the ENTER key while the STABLE

step
13

To step 14
To step 16

Place the displayed
mass on theweighing unit
Turn on STABLE

mark is off (detecting motion). Arrange thecondition using the F00 filter function.

F2
ENTER

Digital Input
Step16 Pressing the +/- key, a stored input voltage
parameter of the span is displayed in the unitof mV/V. Adjust the input voltage using thefollowing keys.
key ............ To select a digit.
key ............ To select a value.
ENTER key ...... To store the span parameter andproceed to step 17.
ESC key ........... To proceed to step 17 withoutchanging the span parameter.

TAREStored input
+/-

mV/V

ZERO

TARE

mV/V
F2

New input

ENTER

5.2.10. Exiting the Calibration Mode
Step17 Check the CALEnd display.
Use the following keys.
CAL key..... To store the parameters and display
CALoFF . Proceed to the next step.
ESC key .... To store the parameters temporarily.
Proceed to the CAL 0 display.
Turn display off

AD-4406A Weighing Indicator

Page 17

5. Calibration

Press and hold the ON/OFF key and press the ESC key.
No parameters are changed,
CAnCEL is displayed and the calibration mode is finished.
Step18 Press the ON/OFF key to turn the display off.

5.3. Weighing Range Function
The weighing range function can select "single range" or "dual range". Specify eachweighing interval (division) for the multi-interval weighing instrument. Each weighinginterval is displayed according to a net value or gross value.
Note

When single range is used, performing this function is not required.

Example 1
The gross display.
Specified parameters:
First range
Range = 50.00 kg, division 0.02 kg
Second range
Range = 100.00 kg (maximum capacity), division 0.1 kg
Display
0 kg to 50 kg :The first range, division 0.02 kg.
50 kg to 100 kg :The second range, division 0.1 kg.
division 0.02 kg
division
0 kg

0.1 kg

50 kg

100 kg Gross
Weighing value

Example 2
The net display using a 40kg tare value.
Specified parameters:
The same parameters as example 1.
Display-40 kg to 50 kg :The first range, division 0.02 kg.
50 kg to 60 kg :The second range, division 0.1 kg.

division 0.02 kg-40 kg5.Calibration

division 0.1 kg
50 kg 60 kg Net
90 kg 100 kg
Weighing value

0 kg
Tare value
40 kg

Page 18

AD-4406A Weighing Indicator5.3.1.

Setting the Division and Range

Consider the following rules to design the weighing range.
Rule 1 Select the division and range of each weighing range so as to satisfy the following
inequality.
The first range < the second range
The division of the next weighing range is automatically set larger than the divisionof the lower weighing range.
Rule 2 When setting the dual range, the upper limit value of the second range becomesthe maximum capacity.
Rule 3 Select a resolution smaller than 40000. The resolution is a value obtained by
dividing the maximum capacity by the minimum division of the first range.

5.4. Digital Linearization Function
Even if the zero and span calibration have been completed, there may still remain alinearity deviation caused by the performance of the weighing unit. The digital
linearization function can rectify or reduce the linearity deviation using weighing points
except zero and capacity. Up to three weighing points can be specified.
CautionThis function does not improve repeatability or hysteresis.
Use the mass on the condition that Lnr 1 < Lnr 2 < Lnr 3.
Do not press the ENTER key while the STABLE mark is off.

Step 1 Check the CAL 0 display. Press the
key to display Lnr 0.
Step 2 Enter the zero point. Refer to “5.2.8. Zero Calibration”.
Step 3 The value of the middle point is displayed after indicating Lnr x. x is 1, 2 or 3.
Themark of the same number (x) is displayed along with the value.
Step 4 Select a middle point.
If you want to cancel the current procedure, press the ESC key to finish thisfunction. Proceed to step 7. The other points are cleared (canceled).
Select a middle point value using the following keys. Proceed to step 5.
key ........... To select a digit.
key ........... To select a value.
Step 5 Place a mass equivalent to the displayed value on the weighing unit. Press the
ENTER key after the STABLE mark has turned on. Proceed to step 6.
Step 6 If you include a 2nd and 3rd middle point, repeat steps 3, 4, 5 for each.
If you finish this function, proceed to step 7.
Step 7 Perform step 11 of "5.2.9. Span Calibration" immediately.
AD-4406A Weighing Indicator

Page 19

5. Calibration

5.5. Gravity Compensation Function
If the scale is used at the calibration location, it is not necessary to perform this function.
If there is a difference in the gravity acceleration between the calibration locationand the installed location, it may cause a weighing error. This function specifies
these gravity accelerations and corrects the span error.
The decimal point is not displayed in the function. Example: 9798 = 9.798 m/s2
When span calibration is executed, the gravity acceleration correction will
be cleared and two gravity acceleration values will return to the factory
settings.

Note

Step 1 At the CAL 0 display, press the
key until G SEt is displayed and press the
ENTER key to enter the gravity compensation function.
If you want to cancel the current procedure, press and hold the ON/OFF key andpress the ESC key to display CAnCEL. Then, no parameters are changed and thecalibration mode is finished. Press the ON/OFF key to turn the display off.
Step 2 The parameter is displayed with triangle 1. Enter the gravity acceleration of thecalibration location. The parameter xxxx is the gravity acceleration.
key ....... To select a digit.
key ....... To select a value.
ENTER key .. To store the new gravity acceleration and proceed to step 3.
ESC key ....... To return to G SEt

without changing the value.

Step 3 The parameter is displayed with triangle 2. Enter the gravity acceleration of theinstalled location. The parameter xxxx is the gravity acceleration.
key ...... To select a digit.
key ....... To select a value.
ENTER key . To store the new gravity acceleration and proceed to step 4.
ESC key ...... To return to step 2 without changing the value.
Step 4 Now G xxxx is displayed. Press the CAL key to store the parameters. CALoFF isdisplayed. Proceed to step 5.
Step 5 Press the ON/OFF key to turn the display off.

5.Calibration

Page 20

AD-4406A Weighing Indicator5.5.1.

The Gravity Acceleration Table
Amsterdam
AthensAuckland NZ
BangkokBirmingham
Brussels
Buenos Aires
Calcutta
ChicagoCopenhagen
CyprusDjakarta
Frankfurt
Glasgow
HavanaHelsinki
KuwaitLisbonLondon (Greenwich)
Los Angeles
MadridAD-4406A Weighing Indicator

9.813
9.800
9.799
9.783
9.813
9.811
9.797
9.788
9.803
9.815
9.797
9.781
9.810
9.816
9.788
9.819
9.793
9.801
9.812
9.796
9.800

m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2

Page 21

ManilaMelbourne
Mexico City
Milan
New York
Oslo
OttawaParis
Rio de Janeiro
Rome
San Francisco
Singapore
Stockholm
SydneyTainanTaipeiTokyo
Vancouver, BC
Washington DC
Wellington NZ
Zurich

9.784
9.800
9.779
9.806
9.802
9.819
9.806
9.809
9.788
9.803
9.800
9.781
9.818
9.797
9.788
9.790
9.798
9.809
9.801
9.803
9.807

m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2
m/s2

5. Calibration

5.6. Calibration Error Code List
Exiting from a Calibration Error
ESC key .... To return to the point where an error occurred. Retry the operation.
ESC key while pressing the ON/OFF key.
No parameters are changed, CAnCEL is displayed and thecalibration mode is finished.
Error Code List
If an error has occurred during the calibration mode, the following code isdisplayed.
Error code
Err 0
Err 1
Err 2
Err 3
Err 4
Err 5
Err 6

Err 7

Err 8

Err 9
Err 12
Err 13G Err

5.Calibration

Description
With a multi-interval scale. The last division is set to maximum ( d-50 ).
Therefore the next division can not be entered.
The resolution exceeds 40000. (Resolution = maximum capacity/ minimum
division)
Reduce the maximum capacity or increase the minimum division.
The load cell output is too large or too small at zero calibration. Check theweighing unit and load cell. Refer to "3.5.Verifying Load Cell Output and Input
Sensitivity".
Measuring calibration mass (or entering digital input), the value exceeded the
maximum capacity. Reduce calibration mass (or digital input).
The selected calibration mass is smaller than the minimum division.
The new input sensitivity is less than 0.15 µV/division. Increase the input
sensitivity.
Refer to "3.5.Verifying Load Cell Output and Input Sensitivity".
Placing a mass on the weighing unit, the load cell output becomes a negativevalue. Check the load cell cable connections and the direction of load cellmounting.
The load cell output exceeds the input range before the maximum capacity.
Adjust the zero balance referring to "3.5.Verifying Load Cell Output and Input
Sensitivity". Replace with a load cell designed for a smaller output. Or reducethe maximum capacity.
The weighed value is out of the input range at zero calibration or spancalibration. Check the weighing unit and cables.
The first weighing range is larger than the second weighing range.
An incorrect mass is selected at the digital linearization function.
Select a mass of the following relation. lnr 1 < lnr 2 < lnr 3.
An unacceptable value was selected in the gravity acceleration function.

Page 22

AD-4406A Weighing Indicator6.

Functions

There are two parameter lists, one for the F-functions and one for CF-functions.
These functions control the indicator. The parameters of each function are stored in
non-volatile memory, and are not lost even if power is turned off.
F-functions:
These parameters can always be changed and are used forinternal settings.
CF-functions:If you accept a certificated approval of the weighing instrument,
the CAL cover must be sealed. Therefore, accepting this approval,
the parameters of the CF-function can not be changed.

6.1. Changing the Function Settings
To enter the function settings, do either of the following.
1 When the display is off, press the ON/OFF key while pressing the +/- key.
2 When in the weighing mode, press both the F1 and F2 keys at the same time.
When you are in the function setting, F00 will be displayed.
Operating Item
Step 1 Select an item using the following keys.
key....... To select a digit.
key ....... To select a value.
ENTER key . To display a parameter of theselected item.
Proceed to step 2.
ESC key ...... To end the function setting andenter the weighing mode.
CAL key ...... To switch between F-functions
and CF-functions.
Operating Parameter
Step 2 Select a parameter using the following keys.
key....... To select a digit or a sub item
(Type 2 or Type 3).
key ....... To select a value or condition
ENTER key . To store a parameter and proceed tostep 1.
ESC key ...... To proceed to step 1 withoutchanging the parameter.

Weighing
F1

F2
ENTER

ESC

ZERO

+/-

TARE

F2
ENTER

ZERO

TARE

F2
ENTER

F1
ESC

Weighing
Display off
Press the ON/OFF key to turn the display off. This stores the changes.
AD-4406A Weighing Indicator

Page 23

6. Functions

6.2. F-Functions
Weighing Conditions (Digital filter, Zero tracking and Stability)
Item
Parameter
Description
0
2 d/ 1.6s
14 d/ 1.6s
28 d/ 1.6s
316 d/ 1.6s
4
32 d/ 1.6s
564 d/ 1.6s
F00
If a weak filter is set, the6
128 d/ 1.6s
Filterresponse will be fast, but will be
Motion / Averaging
more sensitive to external
7
2 d/ 3.2stime
influences such as vibration.
*8
4 d/ 3.2s
98 d/ 3.2s
10
16 d/ 3.2s
1132 d/ 3.2s
1264 d/ 3.2s
13
128 d/ 3.2s
0OFFThis function traces the weight*1
0.5 d/ 1s
value drifting around the zero2
1.0 d/ 1s
point slowly, displayed as zero.
3
1.5 d/ 1s
If a strong parameter is set, a4
2.0 d/ 1s
F01
very small zero drift may be not5
2.5 d/ 1s
Zero tracking
detected.
6
0.5 d/ 2s
If CF00 is 1, then only 0 or 17
1.0 d/ 2s
can be selected for F01. (Initial8
1.5 d/ 2s
setting is 1)
9
2.0 d/ 2s
10
2.5 d/ 2s0
No motion detection
The function to set the condition
1
0.5 d/ 0.5s
of judgment whether a weigh2
1.0 d/ 0.5s
value is unstable or stable. The
3
2.0 d/ 0.5s
ZERO key and TARE key are
F02
4
3.0 d/ 0.5s
active in the stable state. If
STABLE mark5
4.0 d/ 0.5s
these keys need to be active in(Motion detection)
the unstable state, select 1 for
6
0.5 d/ 1s
condition
CF04.
7
1.0 d/ 1s
If CF00 is 1, then only 6 or 7
*8
2.0 d/ 1s
can be selected for F02. (Initial9
3.0 d/ 1s
setting is 6.)10
4.0 d/ 1s
0
1 (STABLE on)
Set the number of times the
F03
STABLE mark turns on in
1
Twice in succession
Auto print/Autosuccession, before output.
*2
Three times
accumulation timing
If CF00 is 1, then only 2 or 3
3
Four times
can be selected for F03.
d: division (weighing interval) of the first range
s: second *: Initial settings
6.Functions

Page 24

AD-4406A Weighing IndicatorDisplay and Other General Settings
Item
Parameter*0
5 times/s
F04
Display update rate
1
10 times/s
1x
Key click (ON/OFF)
2x
LoLo /Zero band
3xLo
F05 [Type2]
4xOK
Buzzer
5x
Hi

Description
The selection for the unstablecondition.
Left: Item, select using the
key
Right: parameter, select using the
1 key
0: no sound, 1: continuous
2: 4 times/s, 3: 2 times/s
4: 1 time/s, 5: 1 time/2s
HiHi/Batch finish/Full
Initial value is 11, others x0
Command address
Initial setting is 00.
or Device ID
Not automatically off
Stable and not using for 5 min.,automatically power off.
5 minutes*: Initial settings.

6x
F06
Device ID (Address)
F07
Auto power off
s: second.
Key Switch
Item

F10 [Type2]
F1 key function

00 to
99
*0
1

Parameter
x0
x1
x2
x3
x4
x5
x6
x7
x8
x9
xA

F11 [Type2]
F2 key function

No function
Serial data output 1
Serial data output 2
Accumulation (M+)
"totAL" display
Setting setpoint
Start comparator,
batch
Stop comparator,
batch
Stop buzzer sound
Unit change
Hold start / releasesame as F10F12 [Type2]
Disabling keys

1
2
3
4
5
6

A key is selected by the leftparameter
key

ZERO key
TARE key
NET/GROSS key

F1 keyF2 keyON/OFF key

Initial value is 13, others x0

Initial value is 11, others x0

2 0* 0 enable
1 disable

Description
Left: Priority, select using the1
key
Right: Function (listed), selectusing thekey
The first priority is operated bypressing and releasing the key
quickly, pressing the key formore than two seconds, lower
priority functions are displayed
sequentially.

key

A key condition is selected by
the right parameter:
When specifying 1 at the rightparameter, this key does notwork.
Use the function to avoid
unintentional operation of 6
keys in the table at the left.

*: Initial settings
AD-4406A Weighing Indicator

Page 25

6.Functions

External Input
Item

F13
EXT1
Function selection of
external input

F14
EXT2
F15
EXT3
*: Initial settings

Parameter
Description*0
Not used (No function)
1
ZERO key
2
TARE key
3
NET/GROSS key
4
OFF key (Not ON)
5
F2 key6
F1 key7
Serial data output (Format 1)
8
Serial data output (Format 2)
9
Accumulation (M+)
10Start batching
11
Stop batching
12
Over signal. Gross over and displayed data are output.
13
Net weight display when shorting the terminal.
14
Accumulated data display when shorting the terminal.
15
Execute comparison when shorting the terminal
16
Display by the second unit when shorting the terminal.
17
All keys are enabled when shorting the terminal.
18
Inhibit memory code reading when shorting the terminal.
19
Start averaging to hold20
Release holding data
0 - 17, 19 and 20
Same as F-13
18
Memory code (BCD 1)
0 - 17, 19 and 20
Same as F-13
18
Memory code (BCD 2)

Accumulation
Item

Parameter
Description
10/11 Acc. no (0) / Exec (1)Left: Sub item, select using the1
key
20/21 Manual (0) / Auto (1)F20 [Type2]
Right: Setting, select using the
30/31 + only (0) / +/ - (1)Accumulation Mode1
key
40/41 OK only / All data (1)Initial settings: 10,21,31,410
Add data anytime
The selection of the inhibit*1
Above 5 d
F21region for accumulation.
Inhibit region for
2
Above 10 d
Do not set F21=0 when Autoaccumulation
3
Above 20 daccumulation (F20=21)
4
Above 50 d
d: division (weighing interval) of the first range *: Initial settings

6.Functions

Page 26

AD-4406A Weighing IndicatorComparator
Item

F22
Comparator function

F23 (F22=1-6)[Type2]
Validation ofcomparison
F23 (F22=10-12)[Type2]Sub function forbatch weighing
F24
Relay output
selection
F25
Batch finish output time
F26
Zero band*: Initial settings
Hold Function
Item
F27
Hold mode
F28
Averaging time*: Initial settings

AD-4406A Weighing Indicator

Parameter
*0
1
2
3
4
5
6
7
8
9
10
11
12
10/11
20/21
30/31
40/41
10/11
20/21
30/31
40/41
*0
1
2
0.0 to9.9

Description
Not usedUpper/lower limit comparison (2 Limits setting)Upper/lower limit comparison (Target and allowance)
Upper/lower limit comparison (Target and % allowance)
HH/Hi/OK/Lo/LL comparison (4 Limits setting)
HH/Hi/OK/Lo/LL comparison (Target and allowance)
HH/Hi/OK/Lo/LL comparison (Target and % allowance)
Check weighing 1
Check weighing 2
Check weighing 3
Simple batch 1
Simple batch 2
Simple batch 3 (Loss in weight)
Includes zero band (1)Left: 1
key
Right: 1
key
Includes minus (1)Initial settings are
Stable (0) /All time (1)11,21,31,40
All time (0) /Start, stop (1)Tare when start (1)Stop after Full by key (0) /Auto (1)Initial settings are
Over/Under judgment:
11,21,31,40
after dribble flow (0) / Batch finish (1)Start with press and hold TARE (1)Over
Effective when
Under
F22=7,9,10,12
Finish/Full (F22=9,10,12)
Relay on time by 0.1second step
Initial setting is(0.0:continuous to zero band)
0.0-999999 to 999999

Parameter*012
3
0.0 to9.9

Initial setting is 0

Description
No hold
Manual holdAuto hold
Manual/auto hold
Averaging time by 0.1second step
(0.0:hold at averaging start)

Page 27

Initial setting is
0.0

6.Functions

Data Output
Item

Parameter
Description*0
No data output
F30
1
Analog output
Set F31, 32, 33
Data output
2
Serial output
RS-232C,
3
Serial output (Zero suppressing) RS-422/485*: Initial settings (In case of installing RS-232C, F30 is set to 2. )Analog Output
Item

Parameter*0
Displayed data
F31
1
Gross data
Output data2
Net data
F32-999999 to 999999
Weight value at 4 mA output(Initial setting is 0)
F33-999999 to 999999
Weight value at 20 mA output (Initial setting is 10000)*: Initial settings
Serial Data Format
Item

F34
Serial data format 1
Initial value19｣,2E｣,3A,4F,E50

F35
Serial data format 2
Initial value
17 2F E30

Parameter
x0
x1
x2
x3
x4
x5
x6
x7
x8
x9
xA
xB
xC
xD
xE
xF

Description

Polarity is changed
by pressing the +/key.

Description
Terminator
Device ID (selected at F06)
Code memory number
Data number
Result of comparison(Reserved)(Reserved)
Accumulated value
Accumulation countStable/Over
Displayed weight
Gross weight
Net weight
Tare weight
Weight type (G /N / T, refer to
CF06)
Weight unit (refer to CF07)

100,10:order of
output (1-999)
Select with the 1 1
key.
1: output data
Select with thekey.
"Exxx" indicatesthe end of data to
output.
Press
NET/GROSS to
expand or shorten
the output data length.

1 “｣” (right hand of the figure) of the display indicates that the comma (F46=0, semi-colonfor F46=1) is output after the data. To turn this mark on and off, press the ZERO and
TARE keys at the same time.
Output of initial settings of F34 (19｣, 2E｣, 3A, 4F, 50) is “ST,GR,12345.6kg”.
2 The data number (parameter 3) increments automatically with each serial data output
from 1 to 99999 (the next of 99999 is 1). The starting number can be set by the keys
(F2 + NET/GROSS).
6.Functions

Page 28

AD-4406A Weighing IndicatorCurrent Loop Output
Item
Parameter
*0
1
F36
2
Output data
3
4
0
1
2
F37
Output mode
3
4
*5
*0
F38
Delay for continual data
1
0
F39
1
Baud rate*2
bps: bit per second
Serial InterfacetemParameter
*0
1
2
F40
Output mode
3
4
5
0
*1
F41
2
Accumulated data output
3
at accumulated data4
display
5
6
*0
1
F42
2
Delay for continual data
3
4
*0
F43
Command address
1*0
F44Time out
1*0
F45
Terminator
1*: Initial settings
AD-4406A Weighing Indicator

Description
Displayed data
Gross data
Net data
Tare data
Gross data/Net data/Tare data
Stream mode
Manual mode
Auto print mode (+)
Auto print mode (+/-)
When accumulation, automatically output
No output
No delay
2.0 seconds (F36=4, except F37=0)
600 bps
1200 bps
2400 bps*: Initial settings
Description
Stream mode, command is not acceptable
Manual mode, command is effective
Auto print mode (+) , command is effective
Auto print mode (+/-), command is effective
When accumulation, automatically output
Command modeNo output
Manual, Fixed format
Auto, Fixed format
Manual, Format 1 (F34)
Auto, Format 1 (F34)
Manual, Format 2 (F35)
Auto, Format 2 (F35)
No delay
0.5 second
1.0 second
1.5 seconds
2.0 seconds
Not used
Used (Address selected at F06)
Approx. 1 second
No limitation
CR, LF
CR
Page 29

6.Functions

Serial Interface (continued)
Item
Parameter*0
F46
DP / Delimiter
1
0
1
F47
*2
Baud rate
3
4
*0
F48
1
Data bits, parity
2*: Initial settings

Description
DP: point (.) / Delimiter: comma (,)
Common to
DP: comma (,) / Delimiter: semicolon (;) sending / receiving
600 bps
1200 bps
2400 bps
4800 bps
9600 bps
Data 7 bits, Even parity
Data 7 bits, Odd parity
Data 8 bits, Non parity
bps: bit per second

Description of "Stream Mode"
Object
F37 0, F40 0
Operation
Data is output in every sampling (when refreshing the display).
Use this mode to output data to an external display (Data may not be output
due to timing of the baud rate and internal sampling rate). If data is printed
with pressing the PRINT key on the printer, use the stream mode.
Description of "Manual Print"
ObjectF37 1, F40 1
Operation
When pressing the key set to output data, the stable weight data is output
just once.
Description of "Auto Print Mode"
ObjectF37 2, F37 3, F40 2 or F40 3
Operation
When the weight data varies from the "inhibit region for output" to the"permission region of output", the stable data is output just once. If you use
this mode, set F02 except 0.
For weighing (and removing) each object and printing the data.
In case of F37 2, F40 2"Inhibit region for output"+5d+5d < "permission region of output".
In case of F37 3, F40 3-5d"inhibit region for output"+5d"Permission region of output" < -5d, +5d < "permission region of output".
d: division (weighing interval) of the first range
Description of "Delay for Continual Data"
ObjectF38, F42
Operation
This function can be used in the "Auto print mode" and "Manual print mode".
When using a non-buffered printer, set to F42 3 and F43 1 (or F38 1).
6.Functions

Page 30

AD-4406A Weighing Indicator6.3. CF-Functions
Item
CF00
Zero tracking width,
motion detection
condition
CF01
Push zero range
CF02
Power on zero range
Turning the display on,
the range to zero display.
CF03
Zero tracking
CF04
TARE, ZERO in motion /TARE at negative gross
value
CF05
Output on overload andunstable state.
CF06
Header 2
CF07
Number of unit digits
CF08
Accumulation function
CAP : maximum capacity

Parameter

Description*0

No limitation

1

Use limitation at F01, F02, F03, F27 and F28

*0
1
2
3
0
*1
2
3
0
1
*2

2% of CAP, Tare limit is 100 % CAP
10% of CAP, Tare limit is 100 % CAP
3% of CAP, Tare limit is 50 % CAP
4% of CAP, Tare limit is 50 % CAP
Not to zero when turning the display on.
10% of CAP
3% of CAP
4% of CAP
Gross when displaying gross
Gross
Gross or Net when displaying net
TARE, ZERO in motion / TARE at negative grossNot to execute/
Not to execute
Execute/Not to execute
Not to execute/
ExecuteExecute/ExecuteNot to output data at unstable value or overload
Effective in key mode
To output data always
GROSS / NET / TAREGS
/ NT / TR
GS/ NT / TRG_/ N_ / T_ (_:Space 20h)
Two digits
Three digits
Not used (Ineffective)
Used(Effective)*: Initial settings

*0
1
2
3
*0
1
*0
1
2
*0
1
*0
1

Power on ZERO (CF02)
CF02=0After power on, the weight display starts immediately.
CF02=1,2,3 When the zero range is exceeded at power on, -----Press the ESC key to start the weight display.

AD-4406A Weighing Indicator

Page 31

is displayed.

6.Functions

7.

Function keys F1 and F2

For easier use, select functions of the F1 key and/or the F2 key and prioritize
them in function settings.
Functions that can be set are as follows:“Print 1” or “Print 2” for serial data output in either format 1 or 2
“Add”
for accumulation“totAL” for display of accumulated data
"SEt Pt" for setting the code memory number and setpoint“StArt”
for starting comparison or batch weighing“StoP”
for stopping comparison or forced termination of batch weighing"bU oFF" for stopping the sound of the comparison buzzer“Unit”
for changing the unit
“HoLd” for starting the average or releasing the hold data
The function set as first priority will operated when the F1 or F2 key is released
and the functions of other priority, by pressing either the F1 or F2 key for morethan 2 seconds. For further details, refer to each item’s description.
Also, regardless of the function settings above, by pressing both the F1 and F2
keys or pressing one key while holding the other key, the following functions canbe done.
F1 + F2
F1 + NET/GROSS
F2 + NET/GROSS
F2 + TARE
F2 + ON/OFF

7. Functions

Entering function settings
Displaying the accumulated data
Displaying and setting data number
Starting batch-weighing
Changing the unit

Page 32

AD-4406A Weighing Indicator

8.

Tare

The function is used to display a net value with the container weight subtracted fromthe total weight, if you place an object into a container to weigh it.
Using the serial interface such as RS-232C, you can do this from the external equipment.
CautionWhen turning the power off, the tare data is cleared. (CF04=0,1)

Weighing Tare
Operation

Place the tare on the weighing unit. Press the TARE key to store the tareweight after the STABLE mark turns on. The display changes to net.

CautionWhen displaying a negative gross value, tare can not be used(normally). To enable tare with a negative gross value, select a CF04
parameter.

Clearing Tare
When pressing the TARE key while gross is zero, tare is cleared and gross is
displayed.
When zeroing with the ZERO key, tare is cleared.

AD-4406A Weighing Indicator

Page 33

8. Tare9.

Accumulation

The function accumulates weight data and stores the total data and theaccumulation count. Data is stored in non-volatile memory, and is not lost even if
power is turned off.

9.1. Preparation and Specification
Set the following parameters to use the accumulation function.
Select CF08=1 for the CF-function so that the accumulation function becomes effective.
Specify the method of accumulation and data at F20 of the F-function.
Specify the inhibit region for accumulation at F21 of the F-function.
Selection of Accumulation Mode, F20 of the F-function
There are two methods of accumulation; manual accumulation using the key
assigned to operate the M+ function and automatic accumulation.
The accumulated data can select "positive data only" or "both polarity data".
The accumulated data can select "result of comparison is OK only" or "all result".
Accumulation Condition, F21 of the F-function
In case of manual accumulation mode, press the key assigned to accumulate
weight data when the STABLE mark is displayed.
Data can be accumulated after the weight data enters the "inhibit region for output".
When connecting the power cord and turning the display on, the accumulation modetakes the same action.
Inhibit region for accumulation
F21
Description
Stable data can be used
Add data anytime
F21 0
anytime.
Above 5 d
F21 1
Initial setting
Above 10 d
F21 2
Above 20 d
F21 3
Above 50 d
F21 4
Caution
Do not set F21=0 for the automatic accumulation mode.
If setting F21=0, it may add the same data two times or more.
Limitation of Accumulation Count and Total
The limitation of accumulation count is 999999.
The limitation of total is 999999, ignoring the decimal point.
If exceeding these limitations, the data is not accumulated.
Example: Setting the decimal point to "0.0", the limitation is "99999.9".

9. Accumulation

Page 34

AD-4406A Weighing Indicator9.2. Display and Operation
Action of Accumulating Data
When accumulating data, the display blinks once.
If the accumulated data is stored, the M+ mark is displayed.
CautionThis function can not accumulate data with a different unit. Specify aunit before use.
Display of Accumulated Data
When setting to CF08 1 (Effective accumulation function) and pressing the key thatallows accumulation display, totAL is displayed and the total data is displayedwith the M+ mark blinking. Pressing the TARE key alternatively displays theaccumulated data and the accumulation count.
Pressing the ESC key, the weight data is displayed.
The total data can be output. Refer to "Output of Accumulated Data" on the next page.
Undoing the Accumulated Data
The last weight data can be deleted from the accumulated data unless new data
has been accumulated.
Step 1 Press the key assigned to operate the function to display totAL and theaccumulated data.
Step 2 Press and hold the +/- key for more than 3 seconds. The display blinks once andthe data, accumulated before the last weight data, is displayed.
CautionExternal input can not be used.
Clearing the Accumulated Data
Step 1 Press the key assigned to operate the function to display

totAL

and theaccumulated data.
Step 2 Press and hold the ZERO key for more than 3 seconds. The display blinks once
and the accumulated data is cleared.
CautionExternal input can not be used.
Initializing the Data Number with Clearing the Accumulated Data
When the data number is included with the data of the serial data output,
initializing the data number and clearing the accumulated data can be done at thesame time.
Step 1 Press the key assigned to operate the function to display totAL and theaccumulated data.
Step 2 Press and hold the ZERO and +/- keys at the same time for more than 3
seconds. The display blinks once and the accumulated data is cleared. And thedata number is initialized (1).
CautionExternal input can not be used.

AD-4406A Weighing Indicator

Page 35

9. Accumulation

Output of Accumulated Data
The accumulated data can be output to the serial interface.
Output by manual or automatic, and output data format is selected at F41 of the
F-function setting.
F41

Accumulated data
output ataccumulated data
display

Parameter
Manual/Automatic0
No output
Manual (initial*1
setting)2
Automatic
3
Manual4
Automatic
5
Manual6
Automatic

FormatFixed format
Format 1 (selected at F34)
Format 2 (selected at F35)

Step 1 Press the key assigned to operate the function to display totAL and theaccumulated data.
Step 2 If automatic output is set, the data is output once at that timing.
Step 3 If manual output, by pressing the F2 key while the accumulated data is displayed,
the data is output.
Fixed data format :9. Accumulation

Page 36

AD-4406A Weighing Indicator10. Code Memory
The AD-4406A has four code memories (1 through 4). Each code memory stores aset of setpoints.
The data is stored in non-volatile memory, and is not lost even if power is turned off.
Memory number 0 is a temporary memory and the data is lost when power isturned off.
The active code memory number can be changed by key switch, external control
input, or a command via the serial interface.
Changing the Code Memory Number by External Input
The code memory number can be changed by external input from OP-05 or
OP-08.
EXT2 EXT3 Memory Number
ONON
1
Set F14 and F15 to 18.
OFFON2
F13=18 : Inhibit reading EXT.2 and EXT.3
ONOFF3
to prevent unintentional reading when
OFF OFF
4switching the codes.

AD-4406A Weighing Indicator

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10. Code Memory11. Comparison
This function has the "upper / lower limit comparison", the "5-stage (HiHi/Hi/OK/Lo/LoLo)
comparison", the "setpoint comparison" and the "simple batch". They compare the weightdata with preset parameters and can output the result of the comparison to the display
and buzzer, also to the relay-outputs of OP-03, OP-05 and OP-08.
Set the F-function F22 and F23 to use the "upper / lower comparison", the "5-stage(HiHi/Hi/OK/Lo/LoLo) comparison" (these two comparison methods will be combined
and hereafter be called the "Weight check mode"), and F22 through F26 to use the"setpoint comparison" and the "simple batch".
There are four code memories for the setpoints. Data is stored in non-volatile memory
and is not lost even if power is turned off or the batteries are depleted.
Code memory can be selected by key switch, external control input, or a command
via the serial interface. Refer to “13.3. Command Format”.

11.1. Weight Check Mode
This function compares the weight data with the upper and lower limit values(upper/lower limit comparison) or with four limit values of HiHi, Hi, Lo and LoLo (5-stage
comparison), and displays, sounds the buzzer and/or outputs the result to the three
relays of HI, OK and LO. Use this comparison when judging whether a weight is proper.
Set the F-function F22 to 1, 2 or 3 to use the upper/ lower limit comparison and F22 to4, 5 or 6 to use the 5-stage comparison.
Select a parameter of the F-function F23 for the comparison condition.
Set the F-function F26 (zero band) if setting F23=10 (not compared in the zero band).
Specify the upper and lower limit / HiHi, Hi, Lo, LoLo limit values.
When entering the limit value(s), it is not necessary to enter the F-function F22 andF23 again unless comparison conditions are changed.
There are 3 type of setting values for each comparison.
(1) Set the limit value (upper and lower limit / HiHi, Hi, Lo, LoLo limit).
(2) Set the Target value and an acceptable tolerance (upper and lower) in weight.
The limit value is calculated automatically.
(3) Set the Target value and an acceptable tolerance (upper and lower) inpercentage of the target weight. The limit value is calculated automatically.
Example. Target = 50 kg, Upper limit = 51 kg, Lower limit = 48 kg(1) Hi (Upper limit) : 51 (kg), Lo (Lower limit) : 48 (kg)(2) TG (Target) : 50 (kg), Hi (Upper acceptable tolerance) : 1 (kg),Lo (Lower acceptable tolerance) : 2 (kg) not a negative value(3) TG (Target) : 50 (kg), Hi (Upper acceptable tolerance) : 2 (% of Target),
Lo (Lower acceptable tolerance) : 4 (% of Target) not a negative value
11.Comparison

Page 38

AD-4406A Weighing Indicator11.1.1. Condition Formula for Comparison
Comparison is performed based on the following formula.
Upper/lower limit comparison
Judge
Condition FormulaHI
Upper limit (Hi limit) value < Displayed value
OK
Lower limit value Displayed value Upper limit
valueLO
Displayed value < Lower limit (Lo limit) value
5-stage comparison
Judge
Condition Formula
HiHi
HiHi limit value < Displayed value
HI
Upper limit (Hi limit) value < Displayed value
OK
Lower limit value Displayed value Upper limit
valueLO
Displayed value < Lower limit (Lo limit) value
LoLo
Displayed value < LoLo limit value

DisplayHI
OK

Output
HI
OK

LO

LO

Display
HI, 2
HI
OK

OutputHI
HI, OK
OK

LO
LO, 3

LO, OKLO

The decimal point is ignored. Example: If the upper limit value is 10.0, enter 100.
These parameters are stored in non-volatile memory, and are not lost even if
power is turned off or the batteries are depleted.
When the displayed value becomes an overload (positive over), HI (over) is output.
When the displayed value becomes an under load (negative over), LO (under) is
output.
This function compares the upper limit value first.
This function does not check the relationship between the upper and lower limit
values.

11.1.2. Setting the Upper/Lower Limit Values
Step 1 Press and hold the setpoint setting function key, that function is activated. When
SEt Pt appears, release the key switch. The indicator enters the setpoint setting
mode and the display code memory number blinks.
Step 2 Set the code memory number using the following keys.
key ..... To select a comparison class and proceed to step 3.
key ..... To select a code memory number.
ESC key To return to the weight display without changing code memory.
ENTER key To set the displayed code memory's setpoint and return to theweight display.

AD-4406A Weighing Indicator

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11.Comparison

Step 3 Select the comparison class (upper limit value, etc.) using the following keys.
key .... To select a comparison class (blinking).
ESC key .... To return to step 2.
ENTER key To proceed to step 4.
Step 4 Set the setpoint value using the following keys.
key ..... To select a digit.
key ..... To select a value.
ENTER key To store the parameter and return to step 3.
ESC key .... To return to step 3 without changing the parameter.
Setting Order and Display for the Weight Check Mode
F22 MODE
Display
1 Upper
Setpoint
Lower
Class
1 Comparator
2 Upper
Setpoint
Lower
Class
2 Comparator
3 Upper
Setpoint
Lower
Class
3 Comparator
Unit
4 5-stage
Setpoint
1
Class
Comparator
Triangle
5 5-stage
Setpoint
2
Class
Comparator
Triangle
6 5-stage
Setpoint
3
Class
Comparator
Unit
Triangle

11.Comparison

1
Upper
Hi
HI
TargettG
OK
Target
tG
OK
HiHi
HH
HI
2
TargettG
OK
Target
tG
OK

2
Lower
Lo
LO
Upper
Hi
HI
Upper
Hi
HI
%
Hi
Hi
HI
HiHi
HH
HI
2
HiHi
HH
HI
%
2

Page 40

3

Lower
Lo
LO
Lower
Lo
LO
%
Lo
Lo
LO

4

Hi
Hi
HI

LoLo
LL
LO
3
Lo
Lo
LO

Hi
Hi
HI
%

Lo
Lo
LO
%

5

LoLo
LL
LO
3
LoLo
LL
LO
%
3

AD-4406A Weighing Indicator11.2. Setpoint Comparison
This function includes the weighing sequence and uses for acquiring a preset
target weight.
There are four parameters of "Final", "Preliminary", "Free fall" and "Zero band" to
use the setpoint comparison.
The result of the sequence is output to three relays of OP-03, OP-05 or OP-08.
It is not necessary to enter the F-function F22 again unless comparison
conditions will be changed.

11.2.1. Description of Input Parameters and Outputs
F22 = 7 (Check weighing 1)
Preset target weight
Weighing value
Weighing trace
Final

Free fall
Tare

Tared Zero

Zero band

Calibrated Zero

Output and Condition

Time

Relay HI,1, Net ≧ (Final - Free fall)

Relay LO,3, Gross ＜ Zero band

OFF
ON

ON

OFF

OFF

ON

Relay OK output can be changed to OVER or UNDER by setting F24. The
triangle 2 is not displayed.
OVER/UNDER is judged always and the result is output to the display and the relay.
F22 = 8 (Check weighing 2)
Preset target weight
Weighing value
Weighing trace
Final

Free fall

Preliminary
Tare
Tared Zero

Zero band

Calibrated Zero

Output and Condition
Relay HI,1, Net ≧ (Final - Free fall)

Relay OK,

2, Net ≧ (Final - Preliminary)

Relay LO,3, Gross ＜ Zero band

Time
OFF
OFF
ON

ON

OFF

ON

OFF

OFF

ON

OVER/UNDER is judged always and the result is output to the display but not to
the relay.
AD-4406A Weighing Indicator

Page 41

11.Comparison

F22 = 9 (Check weighing 3: Loss in weight)
Preset target weight

Tared Zero

Weighing value

Final

Tare

Weighing

Free fall
Zero band
Calibrated Zero

Output and Condition

Time

Relay HI,1,

Net ≧ (Final - Free fall)

Relay LO,

3,

Gross ＜ Zero bandON

Relay OK*,

2,

Gross ≧ Full

OFF

OFF

ON
ON

OFF
ON

OFF

OFF
OFF
ON

* Relay OK output can be changed to OVER or UNDER by setting F24.
Triangle 2 is displayed when Gross ≧ Full regardless of the F24 setting.
OVER/UNDER is judged always and the result is output to the display and therelay.

11.2.2. Simple Batch
The weighing sequences of simple batch (F22=10, 11 or 12) are similar to those of
Check weighing (F22=7, 8 or 9) respectively. The differences are listed below.
12
34

Basically ON/OFF of the relay and the display is reversed.
No judgment other than Zero band and Full before input Start signal.
The weighing completion condition is set by F23=2x and it is effective after Start.
The outputs of Preliminary and Free fall are off from weighing completion to thenext start.
5 Weighing completion can be output by setting F24 and F25.
6 The start signal can be accepted after weighing completion even if the weight is
not within the zero band.
7 Over/Under output is set by F23=3x.

StartTare, when the Start is input automatically, if F23 is set to 11.
The READY mark turns off when the Start is input.
Weighing Completion
The weighing completion condition is set by F23=2x.
F23=20 : Either the STOP key is pressed or the Batch stop input is on
F23=21 : Stable is detected after reaching Final
Before reaching Final, the STOP key or Batch stop input forces weighing
completion even if F23 is set to 21.
11.Comparison

Page 42

AD-4406A Weighing IndicatorToward the Zero band
Preliminary and Free fall output are holding the off state.
Over/Under comparison starts. If F23 is set to 30, judgment starts when Free fall turns
on. The judgment is not latched and the output is according to the state at the time.
The Weighing completion relay is turned on if F24 is set to 2. The on time is set by F25.
The READY mark is blinking regardless of the settings of F24 and F25.
Start is may be accepted at this state.
Returns to Zero band
Over/Under and Weighing completion output is off.
The READY mark is turned on.

11.2.3. Setting the Parameters of Setpoint Comparison
Refer to "11.1.2. Setting the Upper/Lower Limit Values".
Zero band value is set at F26 of the F-Functions, and the value does not belong
to a specific code memory, but is used commonly.
Setting Order and Display for Setpoint Comparison and Simple batch
F22
MODE
Display
7 Setpoint
Setpoint
Comparison
Class
1 Comparator
Triangle
8 Setpoint
Setpoint
Comparison
Class
2 Comparator
Triangle
9 Setpoint
Setpoint
ComparisonClass
3 Comparator
Triangle
10 Simple
Setpoint
Batch
Class
1 Comparator
Triangle
11 Simple
Setpoint
Batch
Class
2 Comparator
Triangle
12 Simple
Setpoint
Batch
Class
3 Comparator
Triangle

AD-4406A Weighing Indicator

1
Final
Fi
OK
Final
Fi
OK
Final
Fi
OK
Final
Fi
OK
Final
Fi
OK
Final
Fi
OK

2
Free fall
FF

3
Over
Hi
HI

4
Under
Lo
LO

5

1
Free fall
FF

Preliminary
Pr

Over
Hi
HI

Under
Lo
LO

1
Free fall
FF

2
Full
Fu

Over
Hi
HI

Under
Lo
LO

1
Free fall
FF

2
Over
Hi
HI

1
Free fall
FF

PreliminaryPr

1Free fall
FF

2
Full
Fu

1

2

Page 43

Under
Lo
LO
Over
Hi
HI

Under
Lo
LO

Over
Hi
HI

Under
Lo
LO

11.Comparison

12. Hold Function
This function displays the hold weight data after averaging the weight data for a
specific period.
Useful to determine a live animal's weight.
Averaging time is selectable up to 9.9 seconds by 0.1 second step.
3 methods are available to start averaging; manual start, automatic start after
stable, and manual / automatic start.
Manual start is available with key switch or external input.
Serial interface commands are also available; averaging start, releasing the holddata and outputting the hold state. Refer to “13.3.4. Commands for Hold Function”.
CautionThis function can not be used under the setting CF00=1
Averaging can not start at a displayed value smaller than 0 +/- 5 digits.
Data when the display is over is not included for averaging.
When powered off, the hold is released automatically.
There is no peak hold function.
The display and the Data Output of Hold and Average
The weight display is blinking during the averaging period.
The output data in the averaging period is the actual weight at the time.
The weighing unit is blinking when the weight display is in the hold state.
The output data format of the hold weight data is the same as that of the normal
weight data except the header of stable state is “HD” in the response to the “RW”
or “RW,n” (n=1 or 2) command.
Relations to the Other Functions
If automatic accumulation (F20=21) and/or auto print (F37=2,3 F40=2,3) is set,accumulation and/or data output is performed after determining the hold data.

12.1. Setting the Hold Functions
F27 determines the method of starting the average.
F27=1 Manual start: Starts the average and release with key switch operation.
F27=2 Automatic start: After passing the inhibit region * and detect stable **,starts the average automatically, releasing the data when the weight
returns to inhibit region.
F27=3 Both Manual start and Automatic start.
*inhibit region
0 +/- 5digits**stable detection
Satisfied both F02 and F03
F28 determines the averaging time by 0.1second step. F28=0 holds the data at
averaging start.
12. Hold Function

Page 44

AD-4406A Weighing Indicator

The key switch will function as the HOLD key if F10 or F11 parameter is set to A.
The external input function of averaging start is 19 and hold release is 20 of F13,
F14 and F15. The function is accepted at the off to on edge of the external input.
Conditions of the Average and Release
The method to start/stop the average and to release the hold state depends on the F27
setting.
Condition
F27=1
F27=2
F27=3
Average start in the inhibit region
No
No
No
Average start with key switch (including unstable)
Yes
No
Yes
Average start with ext. input (including unstable)
Yes
No
Yes
Average start with command (including unstable)
Yes
Yes
Yes
Average start after passing the inhibit region and
No
Yes
Yes
stableWeight is entering the inhibit region at averaging
Continue
Stop
Stop
Weight becomes over at averaging
Pending
Stop
Pending
Hold key input at averaging
Stop
Stop
Stop
Release input from external input at averaging
Stop
Stop
Stop
Release command input at averaging
Stop
Stop
Stop
Hold key input at hold
Release
Release
Release
Release input from external input at hold
Release
Release
Release
Release command input at hold
Release
Release
ReleaseWeight is entering the inhibit region at holdContinue
Release
ReleaseWeight becomes over at holdContinue* Continue* Continue*
Pending: Suspend the count up timer and do not average under the condition.
Release: Key, ext. input and command are effective at over display.
Continue*: Continue hold, but over display.
Key Input and Command in the Hold State
Release hold and perform key function:
Keys:
TARE, ZERO, SETPOINT, TOTAL
Commands: MT, MZ, HC
Continue hold and perform key functions
Keys:
NET/GROSS, Accumulation, Compare start/stop
Commands:
Other commands

AD-4406A Weighing Indicator

Page 45

12. Hold Function

13. RS-232C Interface (OP-04, OP-05, OP-08)
13.1. Specifications
Transmission
Baud rate
Data bits
Parity bit
Start bit
Stop bit
Code
Terminator
Connector

Asynchronous, bi-directional, half-duplex
600, 1200, 2400, 4800, 9600 bps
7 bits, 8 bits
1 bit, Even or Odd (for 7 data bits) or Non parity (for 8 data bits)
1 bit
1 bit
ASCII
CR LF, CR (CR: 0Dh, LF: 0Ah)
D-sub 9 pin connector

Circuit and Pin Connection
Pin No.
2
3
5
6
7
8
Other
Case

Signal name
TXD
RXD
SG
DSR
RTS
CTS

Direction
OutputInput
OutputDescription
Transmit data
Received data
Signal ground
Data set ready-Pin 7 is connected to pin 8
Not used
Shield98(male contact)

Bit Format
data 7 bits

data 8 bits

13. RS-232C Interface (OP-04, OP-05, OP-08)

Page 46

AD-4406A Weighing Indicator13.2. Data Format
Two types of data format can be set at F-Function F34 and F35.
The initial data format of F34 is shown below.
S T , G S , + 0 0 0 0 0 . 0 k g

8-bit data
Header 1 Header 2
S T
U S
O L
H D

G S
N T
T R

G
N
T

CF06=0,1 CF06=2

Terminator
Unit
k g
g
t

k g
g
t

CF07=0 CF07=1
2 digits 3 digits

Space code (20h)
Carriage return (0Dh)Line feed (0Ah)
Decimal point :Dot (2Eh) or
Comma (2Ch)
l b
o z
c y
t l

l b
o z
c y
t l

Header 1 F34, 35=9 (Status)
ST Stable weight data.
US Unstable weight data.
OL Overload (Out of range).
HD Hold weight data (The response of the “RW” and “RW,n” command).
Header 2
GS or
NT or
TR or

F34, 35=E (Weight type)G
Gross data.
N
Net data
T
Tare data.

Data
F34, 35=A, B, C, D (Weight data)
The first of the data bits is the polarity, "+" or "-".
When data is zero, the polarity is "+".
8 bits including the polarity and a decimal point (dot or comma).
In case of "Out of range", the data bits are replaced by spaces except for thedecimal point.
Unit
F34, 35=F (Unit)
In case of CF07=0, the unit length is 2 digits.
In case of CF07=1, the unit length is 3 digits. Depending on the circumstances, an
A&D printer may not work correctly.

13.3. Command Format
Description of Command
When performing a command, the received command or reply data is sent back.
When the received command can not be performed such as the "busy" state, thecode " I " is sent back. In this case, insert a delay time. Electrical noise may be
the cause of this error.
AD-4406A Weighing Indicator

Page 47

13. RS-232C Interface (OP-04, OP-05, OP-08)

When receiving an undefined command (unknown command), a "?" is sent back.
When the memory is short to store the data of UFC commands, an “M” is sent
back.
Optional addresses can be added to a command. The address form is"@address" and the address is specified at F-Function F06. The reply (data or
error code) is also sent with the address.
Example: Command is "Display net data". Address is 23.
Sending a command
Sending a command with address
M N@ 2 3 M N

Terminator
Command

Terminator
CommandAddress

Unperformed command reply

Unknown command replyI@ 2 3 ?

Terminator
Unperformed command
Memory overflow (for UFC commands)
M

Terminator
Unknown command
Address
Carriage return (20h)Line feed (0Ah)

Terminator
Memory overflow

13.3.1. Commands to Request Data
Request Display Data (1)When receiving this command, returns the displayed data immediately.
Template
RW
Command R W
S T , G S , + 0 0 1 2 3 . 0 k g
Reply
Request Display Data (2)When receiving this command, returns the displayed data immediately with format 1
or 2.
Template
RW,1 or RW, 2
Command R W , 1or
R W , 2
Reply
Format 1 (F34) or Format 2 (F35)
Request Gross Data
When receiving this command, returns the gross data immediately.
Template
RG
Command R G
S T , G S , + 0 0 1 2 3 . 0 k g
Reply
13. RS-232C Interface (OP-04, OP-05, OP-08)

Page 48

AD-4406A Weighing IndicatorRequest Net Data
When receiving this command, returns the net data immediately.
Template
RN
Command R N
Reply
S T , N T , + 0 0 1 2 3 . 0 k g
Request Tare Data
When receiving this command, returns the tare data immediately.
Template
RT
Command R T
S T , T R , + 0 0 1 2 3 . 0 k g
Reply
Request Accumulated Data
When receiving this command, returns the accumulated data immediately.
Template
RA
Command R A
Reply
Refer to the Fixed data format of "9.2. Display and Operation”, Output of
Accumulated Data.
Is ZeroWhen receiving this command, returns "at zero point" or no immediately.
Template
RZ
Command R Z
Reply
When at ZERO
Not at ZERO1
0

13.3.2. Commands to Control the Indicator
Zero Display
Sets the current display to the zero point.
Template
MZ
Command M Z
M Z
Reply
Tare
Sets the current display to zero of the net data.
Template
MT
Command M T
M T
Reply
Clear Tare Data
Clears the tare data and displays the gross data.
Template
CT
Command C T
C T
Reply
13. RS-232C Interface (OP-04, OP-05, OP-08)
AD-4406A Weighing Indicator
Page 49

Display Gross Data
Displays the gross data.
Template
MG
Command M G
Reply
M G
Display Net Data
Displays the net data.
Template
MN
Command M N
M N
Reply
Accumulation (M+)
Accumulates the displayed data.
Template
MA
Command M A
Reply
M A
Clearing the Accumulated Data
Clears the accumulated data.
TemplateCA
Command C A
C A
Reply
Changing the Weight Unit
Changes the weight unit.
Template
UC
Command U C
U C
Reply
Changing the Code Memory
Changes the code memory number.
TemplateSC,mm: code memory number, 0 - 4
Command S C , 2
S C , 2
Reply
Disabling Key Switches
Disables the key switches. Once power off, no effect by this command.
Template
DK,nn: key switch number (0: all key, 1 - 6: refer to F-Function F12)
Command D K , 4
Example: to disable TARE key
D K , 4Reply
13. RS-232C Interface (OP-04, OP-05, OP-08)

Page 50

AD-4406A Weighing Indicator

Enabling Key Switches
Enables the key switches that are disabled by the DK command. Not applicable to thekeys disabled by F12.
Template
EK,nn: key switch number (0: all keys, 1 - 6: refer to F-Function F12)
Command E K , 0
Example: to enable all keys
Reply
E K , 013.3.3. Commands to Set Parameters
Set Limit/Setpoint Value
Sets the limit or setpoint value of the comparison. The decimal point is not necessary.
Template
Sm,n, [ value ]m: code memory number, 0 - 4
n : setpoint order number, refer to "Setting the setpoint"
Command S 1 , 3 , + 1 6 0
S 1 , 3 , + 1 6 0
Reply
Set Zero Band
Sets the F26 value (zero band) of the comparison. The decimal point is notnecessary.
Template
SZ, [ value ]Command S Z , + 7 4 8
S Z , + 7 4 8
Reply

13.3.4. Commands for Hold Function
Start Averaging to Hold
Starts averaging to hold. The reply differs with the conditions.
TemplateHS
Command H S
Reply
Averaging start
H S
Averaging now
H D , 1Hold
H D , 2
Release the Hold Data
Releases the hold data or stops averaging and goes to the normal weighing mode.
Template
HC
Command H C
Reply
H C

AD-4406A Weighing Indicator

Page 51

13. RS-232C Interface (OP-04, OP-05, OP-08)

Request Hold State
When receiving this command, returns the average/hold state immediately.
TemplateHD
Command H D
H D , 0
Reply
Not hold nor averaging
H D , 1
Averaging now
H D , 2Hold

13.3.5. Commands to Set Serial Data Output Format (UFC)
Set Serial Data Format
Sets the serial output data format.
Format 1 data is stored in the same memory area of F34 and format 2 data is stored
in the same memory area of F35.
TemplateSFf, [ parameters ]f: Format number, 1 or 2
Command S F 1 , $ G R
S F 1 , $ G R
Reply

13.4. UFC Command
UFC (Universal Flexi Coms) function enables editing the serial data output format
freely using the serial interface command.
For customizing the printout of the printer or efficient data collection.
Output data is not only the indicator’s data/status, but also the characters at will.
It can output the control code* of the printer. (* depends on individual printer)
There are 2 sets of memories for storing the parameters.
UFC Command Parameter
UFC commands such as SF1 have many parameters.
One command line can have multiple parameters. The parameters are stored inmemory in order.
Multiple UFC commands are possible. The parameters are stored next to the lastparameter stored by the last UFC command.
Clear all of the data first, if storing a new set of parameters. The parameters inthe stored data can not be changed partially.
The various types of parameters and their descriptions are shown on thefollowing page.

13. RS-232C Interface (OP-04, OP-05, OP-08)

Page 52

AD-4406A Weighing Indicator

data
$CL
$WT
$GR
$NT
$TR
$HD
$UT
$ST
$CP
$ID
$DN
$CD
$AN

Weight, result of comparison etc.
CLear previous settings. The UFC command parameters can not bechanged partially.
Displayed data
GRoss data
NeT data
TaRe data
Header of Gross/Net/Tare. Refer to CF06.
Weight UniT
STable/Unstable
Result of ComParison
ID number specified at F06
Data Number increments with each output automatically
CoDe memory number
Accumulation count

$TL
$CM
$CR
$LF
$DE
$DL

TotaL weight
CoMma
CR code (0Dh)
LF code (0Ah)
DElete the last parameter
Inserting DeLay time (0.1 second step) Example: DL10 : 1.0 second delay

strings

Output the specified strings, enclosed by single quotation (’).
’ itself is described using three single quotations; ’’’Example: ’A & D’
Set data bits = 8 bits if using the 8-bit characters.

hexadecimal Control code of the printer etc, preceded by #.
2 characters preceded by # is hexadecimal code (0 - 9, A - F).
Example: #09
The #FF code can not be used because it is used for internal
control.
ExampleSF1,$ID$DN$CR$LF$GR$UT$CR$LF
Serial output data format 1, ID number, data number, carriage return and line
feed, Gross weight, unit, carriage return and line feed.
SF2,’ Welcome to A & D’$LF’Total weight ’$AN$TL$LF$LF
Serial output data format 2, the strings ’ Welcome to A & D’ and line feed,
the strings ’Total weight ’ accumulation count, total weight, and 2 sets of linefeed.

AD-4406A Weighing Indicator

Page 53

13. RS-232C Interface (OP-04, OP-05, OP-08)

14. RS-422/RS-485, Relay Output (OP-03)
Replacing the RS-232C interface with this option, the RS-422/RS-485 interface canconnect up to 32 indicators and control them from a computer or a PLC.
The functions of the RS-422/RS-485 interface are common to RS-232C except thesignal system.
The relays output the result of comparison.
Notice of parts changes
The AD4406-03 has been discontinued, so the connector will be changed. Please note that thefunctions, pin arrangement, and specifications of the wires that can be used remain unchanged
from the previous product, but the connectors are not compatible with each other.
Before change
1

2

3

4

5

6

7

8

7-10V
100mA

9 10

COMP. OUT

RS422/ 485

DC IN.

COMP. OUT

RS422/ 485

DC IN.
7-10V
100mA

After change
1

2

3

4

5

6

7

8

9 10

OP-03

OP-03

Accessory A&D part number 1TMBLA10
Color:Orange
Solid-state-relay
Maximum voltage
Maximum current

Accessory A&D part number 1TMBLZP5.08HC10
Color:Black

50VDC
100 mA DC

Maximum resistance 8 Ω
Pin connections
Function

RS-422
RS-485

Relay
outputPin No.
1
2
3
4
5
6
7
8
9
10

Signal name
SDA
SDB
RDA
RDB
TRM
SG
HI
OK
LO
COM

Direction
OutputOutput
Input
Input
OutputOutputOutput-Description
Transmission A terminal
Transmission B terminal
Receive A terminal
Receive B terminal
Terminator resistor (100 Ω)
Signal ground
Relay output HI
Relay output OK
Relay output LO
Relay output common

An AC adapter (provided with the OP-03) must be connected to the option board when using
the RS-422 or RS-485 interface. If using relay output only, the AC adapter is not required.

14. RS-422/485, Relay Output (OP-03)

Page 54

AD-4406A Weighing IndicatorCircuit
5V

RS-422 Input
RS-485 Input

47kΩ

RS-422 Output
RS-485 Output

-

DC

OK

47kΩ

4.7kΩ
4.7kΩ

+

HI

100Ω

LO

5

6

7

8

9

10

SDA SDB RDA RDB TRM

SG

HI

OK

LO

COM

1

2

3

4

Relay Output Terminals
DC 7V - 10V
RS-422/RS-485 Terminals
AC adapter Jack(AC adapter is provided with the OP-03)
Note: Please confirm that the AC adapter type is correct
for your local voltage and receptacle type.

AD-4406A Weighing Indicator

Page 55

14. RS-422/485, Relay Output (OP-03)

Switching Between RS-422/RS-485
Switching between RS-422/RS-485 is made with the slide switch (SW1) on the
OP-03 board.
Connection
The polarity of signals A and B may vary with different computers.
It is not necessary to ground the SG terminal when using a computer without a signal
ground terminal.
RS-422

RS-485
Some computers haveterminators inside.

Host computer

RDA
RDB
SDA
SDB

AD-4406A #1
Address F06=1

SDA
SDB
RDA
RDB
TRM

A
Host computer
B

AD-4406A #1
Address F06=1

SDA
SDB
RDA
RDB
TRM

AD-4406A #2
Address F06=2

SDA
SDB
RDA
RDB
TRM

AD-4406A #2
Address F06=2

SDA
SDB
RDA
RDB
TRM

AD-4406A #32
Address F06=32

SDA
SDB
RDA
RDB
TRM

AD-4406A #32
Address F06=32

SDA
SDB
RDA
RDB
TRM

Connect a terminator to theend connection.
Internal termination resister
is effective when the TRM
terminal is connected to the
RDB terminal.

14. RS-422/485, Relay Output (OP-03)

Page 56

AD-4406A Weighing Indicator15. Relay Output & Control Input (OP-05)
Replacing the RS-232C interface with this option, 3-relay outputs and 3-control inputs
can be used with the RS-232C interface of this option.
RS-232C functions and pin connections are the same as the RS-232C interface
described in “13. RS-232C Interface (OP-04, OP-05, OP-08)”.
The control inputs can control the indicator from an external terminal just like the front
panel key operations.
Set the external control functions at F13 - F15 of the F-Functions.
When connecting each function pin to the common pin, the indicator makes the action.
Keep a signal width of more than 100 ms for the On-time and Off-time.
ON (Make)
More than 100 ms More than 100 ms
OFF (Break)The relays output the result of comparison.
Solid-state-relay
Maximum voltage
50VDC
Maximum current
100 mA DC
Maximum resistance 8 Ω
Pin connections (DIN 8 pin connector)
Function
Relay
outputControl
input

Pin No.
1
6
4
8
3
5
7
2

Adaptable connector

Signal nameHI
OK
LO
COM (out)
EXT1
EXT2
EXT3
COM (in)Direction
OutputOutputOutput
Input
Input
Input
-

Description
Relay output HI
Relay output OK
Relay output LO
Relay common terminal
Control input 1 (F13)
Control input 2 (F14)
Control input 3 (F15)
Control input common

JA-TCP0586 (provided with the OP-05)

CircuitControl input

Relay output+7～9V

COM (out)
EXT3

OK

680Ω

EXT1

HI

680Ω

EXT2
680Ω
AD-4406A Weighing IndicatorLOCOM(in) i DIN connectorof OP-05

Page 57

15. Relay Output & Control Input (OP-05)

16.

4-20 mA Analog Output (OP-07)

The OP-07 analog output option is for sending the weight data to an analog input unit.
The output is a 4 mA to 20 mA current output proportional to the display reading.
The output data is updated in synchronization with the display update.
Specifications
Output current
Load resistance
Resolution
Output terminal
Accessory

Less than +/- 0.1% fs
4 mA to 20 mA * Non-linearity
Temperature ZERO Less than +/- 0.02% fs/C
0 to 510 Ω
SPAN Less than +/- 0.02% fs/C
Approx. 1/10000
coefficient
Connector terminal No.1 : + No.2 : - No.3 : FG (Earth)
Connector terminal (1) TM-MSTB03STF
AC adapter (1) Note: Please confirm that the AC adapter type is correct
for your local voltage and receptacle type.

* When set to a non-weight display (Calibration,
F-settings etc.), the output current is 4 mA.
The output current is not adjustable.

-

+

DC

DC 7V - 10V
AC adapter Jack

Settings

1

2

3

+

-

FG

Analog output terminal

Set F30 of the F-Functions to 1, and set F31, F32 and F33.
Item

Parameter
Remarks*0
No output
Initial setting
1
Analog output
Must be set to 1
Data
F30
output Data output
2
Serial in/out 1
3
Serial in/out 2*0
Displayed value Initial setting
F31
1
Gross weight
Output data2
Net weight
Analog-999999 to 999999
Decimal point is set
output F32
Weight value at 4 mA
(Initial setting is 0)
at “CALSEt”
F33-999999 to 999999
Decimal point is set
Weight value at 20 mA (Initial setting is 10000) at “CALSEt”
Settings of F32 and F33
Output current

When entering the F32 or F33 settings (press the
20m A
ENTER key when “32” or “33” is blinking), the setting
value is displayed. Select the blinking digit by pressing
thekey and increase the value by pressing the1
key. By pressing the +/- key, the polarity of thevalue can be alternated. Press the ENTER key tostore the setting value into memory. After this thedisplay returns to selection of the Function number.
16. 4-20mA Analog Output (OP-07)

Page 58

b

a

4m A
F32 a
F33 b

F32 b

F33 a
WeightAD-4406A Weighing Indicator17. Current Loop Output (OP-08)
Replacing the RS-232C interface with this option, current loop output, 3-relay outputs
and 1-control input can be used with the RS-232C interface of this option.
RS-232C functions and pin connections are the same as the RS-232C interface
described in “13. RS-232C Interface (OP-04, OP-05, OP-08)”.
The control input can control the indicator from an external terminal just like the front
panel key operation.
Set the external control functions at F15 of the F-Functions.
When connecting the function pin and the common pin, the indicator makes the action.
Keep a signal width of more than 100 ms for the On-time and Off-time.
ON (Make)
More than 100 ms More than 100 ms
OFF (Break)The relays output the result of comparison.
Solid-state-relay
Maximum voltage
50VDC
Maximum current
100 mA DC
Maximum resistance 8 Ω
Pin connections (DIN 8 pin connector)
Function
Relay
outputCurrent
loop
Control
input

Pin No.
1
6
4
8
3
5
7
2

Adaptable connector

Signal nameHI
OK
LO
COM (out)
CL1
CL2
EXT3
COM (in)Direction
OutputOutputOutputOutputOutputInput-

Description
Relay output HI
Relay output OK
Relay output LO
Relay common terminal
Current loop output 1
Current loop output 2
Control input 3 (F15)
Control input common

JA-TCP0586 (provided with the OP-08)

CircuitControl input

Relay output
COM (out)

+7～9V

EXT3

OK

680Ω

Current loop output

AD-4406A Weighing Indicator

＋

～

HI

－

～

LO
COM
DIN connector(in) iof OP-08

Page 59

17. Current Loop Output (OP-08)

Current Loop Output
The current loop output can be used to output data to an A&D printer and a display
unit.
The current loop output is of the passive type and requires an external current sourceof 20 mA current. A&D’s printer and display unit can be connected without an external
power source, because they supply the current.
The output terminals do not have a polarity. Each output terminal can be connected toeither the plus or minus inputs of the peripheral unit.
Data Format
The data format is the same as that of the initial setting of F34 of RS-232C data
format.
The current loop output data format is fixed and can not be changed.
Header 2 and the unit selection are common to RS-232C (CF06, CF07).
S T , G S , + 0 0 0 0 0 . 0 k g

8-digit data
Header 1 Header 2
S T
U S
O L

G S
N T
T R

G
N
T

CF06=0,1 CF06=2

17. Current Loop Output (OP-08)

Terminator
Unit
k g
g
t

k g
g
t

CF07=0 CF07=1
2 digits 3 digits

Page 60

Space code (20h)
Carriage return (0Dh)Line feed (0Ah)
l b
o z
c y
t l

l b
o z
c y
t l

AD-4406A Weighing Indicator18.

Specifications

Analog Input and A/D Conversion
Input sensitivity
0.15 µV/division
Input signal range-35 mV to +35 mV
Load cell excitation voltage 5V DC 5%, 60 mA with sense voltage input
Maximum 4 x 350 Ω load cells
Load cell drive capacity
Temperature
Zero
0.02 µV/°C (typ.) 0.1 µV/°C (max.)coefficientSpan
3ppm/°C (typ.)15ppm/°C (max.)
Non-linearity
0.005 % of full scale
Input noise
0.15 µVp-p (typ.)
10 MΩ or more
Input impedance
A/D conversion method
Delta-sigma method
A/D resolution count16000000 counts
A/D conversion rate
Approximately 10 times/s
Maximum display resolution 20000 (permissible 40000)
Digital Section
Measurement display
Character height
State indicator symbol
Unit
Interface
RS-232C interface
RS-422/485 interface
Current Loop output
Analog output
External Control Input

Relay output

GeneralPower supply
Power consumption
Operation temperature
Operation humidity
Mass
Dimensions
Accessories
AD-4406A Weighing Indicator

7 segment, Liquid crystal display
25 mm
Minus sign, Zero point, Stable, Net, Comparison result
Storing accumulated data, Percentage, Low battery
Various state indicators (triangle 1, 2, 3)
kg, g, t (lb, oz, lb-oz / catty, tl, catty-tl : depends on theregion)Serial interface for communication (D-Sub 9P male contact)
Serial interface for communication, control (terminal block)
20 mA, Passive type (DIN 8)
4-20 mA, free scaling output (terminal block)3 (or 1) contact input terminals, selected functions (DIN 8)
3 point (DIN 8 or terminal block)
Capacity: 50V AC/DC, maximum current 100 mA (resistive load)
Comparison mode selection
HiHi, Hi, OK, Lo, LoLo output for limit comparison
Zero band, preliminary, free fall, final for setpoint comparison

7 to 10VDC (AC adapter, battery (6 x size C))
Less than 10VA
-10 to +40 (14 to 104 )
85% R.H. (no condensation)
Approximately 650 g, excluding the batteries
232 (W) x 130 (H) x 87 (D) mm, including protrusions
Refer to "4.4. Accessories"
Page 61

18. Specifications

18.1. Dimensions

Unit: mm18.Specifications

Page 62

AD-4406A Weighing Indicator

THIS PAGE IS INTENTIONALLY LEFT BLANK.

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