SW Series
Super Washdown Scales
SW-6KS / SW-15KS
SW-15KM / SW-30KM / SW-60KM / SW-150KM
SW-60KL / SW-150KL

1WMPD4002080C

Warning Definition
The warning described in this manual has the following meaning:

DANGER

An imminently hazardous situation which, if not avoided, will result
in death or serious injury.

© 2011 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 this manual are
subject to change for improvement without notice.

CONTENTS
1. COMPLIANCE ..................................................................................................... 5
2. INTRODUCTION .................................................................................................. 6
3. FEATURES........................................................................................................... 6
4. PRECAUTIONS.................................................................................................... 7
4.1. Installing the scale ..................................................................................... 7
4.2. Operating the scale ................................................................................... 7
5. UNPACKING ........................................................................................................ 8
6. DESCRIPTION OF EACH PART.......................................................................... 9
6.1. Display and symbols ............................................................................... 10
6.2. Keys .........................................................................................................11
7. SETTING UP ...................................................................................................... 13
7.1. Attaching the display pole to the base ..................................................... 13
7.2. Installing the scale ................................................................................... 14
8. BASIC OPERATION .......................................................................................... 15
8.1. Turning the power ON and OFF .............................................................. 15
8.2. Selecting a weighing unit ......................................................................... 16
8.3. Basic weighing operation......................................................................... 16
8.4. Weight display resolution ......................................................................... 17
9. COUNTING MODE ............................................................................................. 18
10. COMPARATOR ................................................................................................ 19
10.1. The formula to compare ........................................................................ 20
10.2. Entering the comparator values ............................................................. 21
11. AUTO-TARE FUNCTION .................................................................................. 22
12. CALIBRATION ................................................................................................. 23
12.1. Calibration mode ................................................................................... 23
12.2. Gravity acceleration correction .............................................................. 24
12.3. Calibration using a weight ..................................................................... 25
12.4. Restoring the factory set values ............................................................ 263

13. FUNCTIONS ..................................................................................................... 27
13.1. Setting the parameters .......................................................................... 27
13.2. Restoring the function settings to the factory set values ....................... 27
13.3. Function list ........................................................................................... 28
14. OPTIONS ......................................................................................................... 30
14.1. Using the HC-02i battery ....................................................................... 30
14.1.1. Installing the battery ...................................................................30
14.1.2. Charging the battery ...................................................................31
14.2. SW-03 RS-232C / RELAY OUTPUT ...................................................... 32
14.2.1. Installing SW-03 .................................................................................... 32
14.2.2. SW-03 specifications ........................................................................... 34
14.2.3. Command mode ................................................................................... 37
14.3. SW-04 RS-422 / 485 ............................................................................. 42
14.3.1. Installing SW-04 .................................................................................... 42
14.3.2. SW-04 specifications ........................................................................... 43
15. MAINTENANCE ............................................................................................... 46
15.1. Notes on maintenance........................................................................... 46
15.2. Error codes ............................................................................................ 46
16. SPECIFICATIONS ............................................................................................ 48
16.1. Specifications ........................................................................................ 48
16.2. External dimensions .............................................................................. 50
GRAVITY ACCELERATION MAP .......................................................................... 52

4

1. COMPLIANCE
Compliance with FCC rules
 Please note that this equipment generates, uses and can radiate radio frequency
energy. This equipment has been tested and has been found to comply with thelimits of Class A digital devices pursuant to Part 15 of FCC rules. These rules aredesigned to provide reasonable protection against interference when equipment is
operated in a commercial environment. If this unit is operated in a residential area, it
may cause some interference and under these circumstances the user would be
required to take, at his own expense, whatever measures are necessary toeliminate the interference. (FCC = Federal Communications Commission in the
U.S.A.)Classification of protection provided by enclosures
 The equipment is designed to comply with the IP Code of IEC 60529.
The “IP69K” is explained as follows:“IP”

International Protection.

“6”

Against ingress of solid foreign objects.
Dust-tight. No ingress of dust.

“9K”

Against ingress of water with harmful effects.
High pressure water jets directed against the enclosure from any direction
shall have no harmful effects. (DIN40050 Part 9)

NSF listed
 Applicable only to the NSF Certified models. The NSF Certified models have the
NSF Mark attached on the display.
 The equipment is certified and listed to NSF/ANSI Standard 169 by NSF
International. NSF International evaluated the equipment and certified that it iscompliant with food protection and sanitation requirements for the design,
construction and materials.
(NSF = National Sanitation Foundation)5

2. INTRODUCTION
This manual describes how the SW Series Super Washdown Scales work and how to
get the most out of them in terms of performance. Please read this manual completely
before using the scale.

3. FEATURESThe SW Series Super Washdown Scales have the following features: Dust-tight and water-tight construction, complying with IP69K.
 The weighing platforms and weighing pans are made of stainless steel (SUS304).
 The weighing platforms are designed for easy cleaning and not to collect dust.
Three sizes of weighing platform are available.
 Employing touch-sensitive keys enabled the display to be covered with a plastic
sheet, resulting in better dust-tight and water-tight performance.
When a key is touched, the corresponding LED, above that key, turns on to indicatethat the key has been touched.
 A bright LED display, with a broad viewing angle.
 Three types of weight display resolution are available to cover various applications,
1/3,000, 1/6,000 (1/7,500 for some models) and 1/12,000 (or 1/15,000 for somemodels). (To be selected in the function setting.)
Note: The weight display resolution of the Legal for Trade models is fixed. The
selection in the function setting is not available.
 The counting mode easily counts the number of objects of the same weight.
 The comparator mode compares the displayed value (weight value) with thepreviously set comparator values and indicates the results by the large and bright
LED display. The optional comparator relay output (SW-03) can output the results
as a relay signal.
 The auto-tare function, used with the comparator mode, automatically tares anddisplays “OK” for a certain amount of sample and repeats this process for the next
weighing.
 Available weighing units are kg (kilogram), g (gram), Ib (pound), oz (ounce), Ib-oz(pound and ounce) and pcs (pieces for the counting mode).
 The optional RS-232C serial interface (SW-03) or optional RS-422/485 serialinterface (SW-04) can transmit the weight value to a printer or personal computer.
 The optional sealed lead acid (SLA) battery (HC-02i) can be installed, allowing thescale to be used where an AC power source is not available.

64. PRECAUTIONS
4.1. Installing the scale
DANGER• Ground the scale so that the user will not be subject to an electric shock.
• The base frame is connected to the power GND (EXC-) inside the loadcell. Be sure to earth ground the AC power cable. When the AC electricaloutlet has no ground terminal, use the ground terminal (screw with theground symbol) on the scale.
Location of the ground terminal
Models with a display pole: lower part of the display pole
Models with no display pole: bottom of the weighing pan• Do not handle the AC power cable with wet hands.
• The AC plug is not water-resistant. Use an electrical outlet located at aplace where the plug will not get wet.
• Even when the optional sealed lead acid (SLA) battery (HC-02i) is used,be sure to prevent the AC plug from getting wet.
• Do not handle the cables carelessly.
• Do not install the scale where flammable or corrosive gas is present.

Consider the following conditions to get the most from your scale.
 Install the scale where the temperature and relative humidity are stable, with no drafts
or vibration.
 Install the scale on a solid and level surface.
 Do not install the scale in direct sunlight.
 Do not install the scale near heaters or air conditioners.
 Do not install the scale near equipment which produces magnetic fields.
 Do not install the scale in a place where it is possible to be charged with static
electricity, or where the relative humidity is lower than 45% RH. Insulators such as
plastic are often charged with static electricity.
 Use a stable power source.
 Please peel off the protecitive film (sheet) before using.
 Calibrate the scale before use or after having moved it to another location.
In addition, calibrate it periodically to maintain the accuracy.
(Refer to “12. CALIBRATION”).

4.2. Operating the scale Periodically ensure that the scale weighs correctly.
 Calibrate the scale periodically to maintain the weighing accuracy (Refer to “12.
CALIBRATION”).
 Do not place anything on the pan that is beyond the weighing capacity.
 Do not apply a shock load to the scale.
 Touch the keys only with a finger.
 Confirm zero before each weighing to prevent possible error.
7

5. UNPACKING
When unpacking, check whether all of the following items are included: Instruction manual SW series scale
The scale components are different depending on the type of scale.
With a display pole (no display stand)With a display stand (no display pole)With no display pole or display stand8

6. DESCRIPTION OF EACH PART

Display

Display poleAC power cable

Spirit level

Pole support footWeighing pan
Ground terminal(The above illustration isfor scales with a display pole.)
Leveling footDisplay rear side

Display knobs

Display knobs

Display stand(The above illustration isfor scales with a display pole.)(The above illustration isscales with a display stand.)9

6.1. Display and symbols
Display
LED display
STABLE indicator
NET indicator

LO

OK

HI

pcs

ZERO indicator

STABLE

g

NET

kg

ZERO

oz

Weighing
unitslb

ON/OFF key

ON/OFFSAMPLE

PRINT

UNITS

ZERO

TARE

SAMPLE key
PRINT key

UNITS key

ZERO key

TARE key

Symbols
SymbolDescription

STABLE ○Turns on when the weight value is stable.

NET ○Turns on when the NET weight is displayed.
(The tare operation is in progress.)

ZERO ○

Turns on when zero is displayed.
Turns on when the comparator results are displayed.

Weighing units“pcs”, “g”, “kg”, “oz” and “lb” are available.
A selected unit turns on.

10

6.2. Keys
The keys are touch-sensitive. Three levels of key sensitivity are available and can be
set in the function setting “key“. When set to “key 2 “ (High), the keys can be
operated with a gloved finger.
 About touch-sensitive keys
This product uses touch-sensitive keys to improve operability andwaterproofness and reduce failures. However, if water, the substance being
weighted, etc. adheres to the key part, that may adversely affect key operation.
Wipe of any such substance adhering to switches with a cloth.
Key

Description
ON/OFF key
Turns the power ON or OFF.
When turned ON, the scale will be automatically set to zero (power-on zero).
To turn the power OFF, press and hold the key.
Note: If pressing the key does not turn the power ON immediately, keeppressing the key.
SAMPLE key
In the counting mode (“pcs”), goes to the unit weight storing mode.
Press and hold to go to the comparator value setting mode.
PRINT key
Outputs the weight value to the printer.
In the setting mode, this key is used to increase the value of the selected
blinking digit by one.
UNITS key
Switches the weighing unit.
In the setting mode, this key is used to shift the blinking digit to the right.
ZERO key
Zeroes the scale and sets the display to zero. (See below.)
TARE key
Subtracts the tare (container) weight placed on the weighing pan. (See below.)
In the setting mode, this key is used to store the setting value and proceed to
the next step.

 The ZERO key will zero the scale if the weight value is within ±2% of theweighing capacity (kg) around the power-on zero point. The ZEROindicator
turns on. (ZERO operation) The ZERO key functions while the weight value is stable.
Even with “-e” displayed, when the STABLE indicator turns on, pressing theZERO key will zero the scale.
 The TARE key will tare the scale and subtract the weight to zero as a tare weight
when the weight is a positive stable value. In this case the ZEROand NET
indicators turn on. (TARE operation)
When the tare is removed while the tare operation is in progress and the scale
and NET
indicators turn on. In this casereturns to the zero point, the ZEROthe displayed tare value will be negative.
(Note: In some countries or areas, the ZEROindicator will not turn on
during the TARE operation.)11 When the tare is removed while the TARE operation is in progress and the ZERO
operation described above is performed, the tare operation previously done iscleared and the NET
indicator turns off.
(Note: In some countries or areas, after the ZERO operation, the TARE
operation will not be cleared without pressing the TARE key.)12

7. SETTING UP
7.1. Attaching the display pole to the baseLower part ofthe display pole

2

SW-M / L series with a display pole
1. Remove the weighing pan from thebase.
2. Remove the 4 screws from the lower
part of the display pole.
3. Insert the display pole under the basewhile pulling out the cable into the baseand align the cable opening positions of
the pole and the base. (See “3” in theillustration.) Do not pull the cable forcibly.
Take care not to pinch the cablebetween the pole and the base.
4. Align the screw holes of the pole andthe base. Using the 4 screws removed
at step 2 to secure the display pole tothe base firmly.
Base, seenfrom above4
3. Pull out the cableBase

3. Insert

Cable

Lower part ofthe display pole

5. Lay the base on its side.
Remove the 4 screws (“5” in the illustration)and remove the pole support foot.
6. Pull the excess cable out of the base.
(See “6” in the illustration.) Take care not to damage the cable.
And make sure the cable has noslack.

6

5

7

7. Pull the cable out to the pole side.
5(See “7” in the illustration.)
Pole support footCable
8. Put the bundle of cable back into thedisplay pole. (See “8” in the illustration.)
Display pole

99. Using the 4 screws removed at step 5,
secure the pole support foot to thedisplay pole.
10. Return the base to the upright position andplace the weighing pan on the base.

13

8
Bundle97.2. Installing the scale
1. Select the place for installing the scale.
Refer to “4. PRECAUTIONS”.
2. Adjust the level of the base, using thespirit level and leveling feet. Confirm
that the bubble is in the center of thelevel.
SW type with a display pole has an
extra foot at the bottom of the pole.
Adjust this foot to touch the floor after
adjusting the level of the base.

Leveling footSpirit level
The size and shapedepends on the scale model.

3. Adjust the display angle as follows.
Type with a display pole(1) Rotate the two display knobs
located on the display rear to
remove them.
Display(2) Tilt the display to an appropriate
angle, 0°, 30°, 60° or 90°.
(3) Attach the two display knobs
and secure them firmly.

Display knobs

Type with a display stand(1) Loosen the two display knobs
located on the sides of thedisplay.
Display(2) Tilt the display to an appropriate
angle. (Free setting angle)(3) Tighten the two display knobs.

Display knobs

4. Confirm that nothing is touching thekeys and connect the AC power cable
to an electrical outlet.
DANGER• The base frame is connected to the power GND (EXC-) inside the loadcell. Be sure to earth ground the AC power cable. When the AC electricaloutlet has no ground terminal, use the ground terminal (screw with theground symbol) on the scale.
Location of the ground terminal
Models with a display pole: lower part of the display pole
Models with no display pole: bottom of the weighing pan
148. BASIC OPERATION
8.1. Turning the power ON and OFF
1. Press the ON/OFF key to turn the power ON.
All the display symbols appear and the scale waits for the weight value to become
stable.
When the optional sealed lead acid (SLA) battery (HC-02i) is used:
After all the display symbols appear, the battery capacity status is displayed forabout 1.5 seconds as shown below.
Level
Display
Battery capacity status1“bat ooo” Full capacity
2“bat _oo”
3“bat __o”
4“bat ___” No capacity (Low battery)At level 3, prepare to recharge the battery.
At level 4, recharge the battery immediately. (Refer to “14.1. Using the HC-02i
battery”.)
After the weight value internally becomes stable, the display turns off for a moment,
and then, zero is displayed along with the ZERO indicator (power-on zero).
If the weight value is unstable, “------” is displayed. Check if anything touches
the weighing pan, or if there is a strong draft or vibration. Eliminate the cause of theerror.
The range for power-on zero is within ±50% (within ±10% for the Legal for Trademodels) of the weighing capacity (kg) around the calibrated zero point.
If the power is turned ON while there is a load beyond this range, “------” isdisplayed. Remove the load from the weighing pan.
 If the scale is to be turned ON with some item loaded, performing a zero calibration
with the item loaded will allow the scale to turn ON that way. (Refer to “12.
CALIBRATION”.) In this case, make sure that the total weight of the item loaded at
power-on and the object to be weighed is within the weighing capacity.
2. Press and hold the

ON/OFF

key to turn the power OFF.

 Auto power-off function
The auto power-off function automatically turns the power OFF, if zero is displayed
for approximately 5 minutes.
Refer to “13.3. Function list” to set “poff”.

15

8.2. Selecting a weighing unit
In the weighing mode, press the UNITS key to select a weighing unit.
Each time the UNITS key is pressed, the unit changes as shown below.

Iboz

Ib-oz kg or g

pcs

Using the function setting “Ut-g”, “kg” and “g” can be switched.
Ut-g 0 : To display “kg”.
Ut-g 1 : To display “g”.
Notes
• For the SW-60K / 150K, the function setting “Ut-g” is not available and only“kg” is displayed.
• Not all the units are available, depending on the area or country.

8.3. Basic weighing operation
1. Press the ON/OFF key to turn the power ON.
The unit used last before turning off appears.
2. Select a weighing unit using the

UNITS

key.

Container

Weighing pan

3. When the display doesn’t show zero, press theZERO key to set the display to zero.
4. When using a tare (container), place thecontainer on the weighing pan, and press theTARE key to set the display to zero.
5. Place the object to be weighed on the weighing
pan or in the container, and wait for the STABLE
indicator to turn on and read the value.

Press

NET
ZERO

Object to
be weighed

6. Remove the object from the weighing pan.
 The ZERO key will zero the scale if the weightvalue is within ±2% of the weighing capacity (kg)around the power-on zero point. The ZEROindicator turns on.

STABLENET The TARE key will tare the scale and subtract the weight to zero as a tareweight when the weight is a positive value. The NET
and ZERO
indicators
turn on.
indicator will not turn on(Note: In some countries or areas, the ZEROduring the TARE operation.) Weighing is possible up to the weighing capacity. When a tare is used, weighing ispossible up to the weighing capacity less the tare weight value.
 The

ZERO

and

TARE

keys function only when the weight values are stable.
168.4. Weight display resolution
The weight display resolution is a ratio of the minimum display to the weighing capacity.
The SW series has three types of weight display resolution, as shown below.
Normal:High:
Maximum:

1/3,000
1/6,000 or 1/7,500 (depending on the weighing capacity)
1/12,000 or 1/15,000 (depending on the weighing capacity

The factory setting is the high resolution. Select the resolution that suits your own
application in the function setting “re5o”.
 For details about the minimum display and the weighing capacity, refer to “16.1.
Specifications”.
 The weight display resolution of the Legal for Trade models is fixed. The selection in
the function setting “re5o” is not available.
 In the counting mode, the scale works with the maximum resolution regardless of
the weight display resolution selected in the function setting “re5o”.

17

9. COUNTING MODE
Determines a unit weight (the weight of one piece) from a known sample quantity, andcalculates how many pieces are on the weighing pan using the unit weight.
The unit weight is maintained even if the power is turned OFF.
1. Press the

UNITS

Press

key to select “pcs”.
(“pcs” = pieces)

2. Press the SAMPLE key to enter the
sample unit weight storing mode.
The numerical value on the left indicatesthe number of samples.

ZERO

3. To change the number of samples, press the
PRINT key. It may be set to 5, l0, 20, 50
or l00.

ZERO

4. When “-“ appears at the right side of thenumber of samples, press the ZERO key tozero the scale .
If necessary, place a container on theweighing pan, and press the
TARE1
key. Confirm that the right side of the numberof samples shows zero.

Press

Press

Container
Weighing
pan

5. Place the correct number of samples on
the weighing pan or in the container.
6. Confirm that the STABLE indicator is turned on.
Press the SAMPLE key to calculate andstore the unit weight. Remove the samples. The
scale is set to count objects with this unit weight.
 The total weight of samples should be more thanshown below, regardless of the number of samples.
Weighing capacity of 6 kg:
0.005 kg
Weighing capacity of 15 kg: 0.01 kg
Weighing capacity of 30 kg: 0.02 kg
Weighing capacity of 60 kg: 0.05 kg
Weighing capacity of 150 kg: 0.1 kg
If not, the display shows “lo ut” and returns to thedisplay of step 5. Increase the number of samples(step 3) and try again.
 If the SAMPLE key is pressed before the weight
above is reached, the scale exits the sample unit
weight storing mode and returns to the counting
mode display.
7. Place the objects to be counted on the weighing pan.
18

Number ofsamples

Press
NET
ZERO

Samples
STABLE

Press

Confirmzero

10. COMPARATOR
Five-level, three-level and seven-level (portion weighing mode) comparators areavailable.
Each comparator mode compares the weight value against the preset limit values andoutputs the results using LEDs (yellow / green / red).
When the optional comparator relay output (SW-03) is installed, the results are output
as a relay signal.
• Five-level comparator mode:
Uses four comparator values tocompare the weight value and outputs
results in five levels of LOLO, LO, OK,
HI and HIHI.
• Three-level comparator mode:
Uses two comparator values (upperand lower limit values) to compare theweight value and outputs results inthree levels of LO, OK and HI.
• Seven-level comparator mode (portion weighing mode):
Uses six comparator values tocompare the weight value and outputs
results in seven levels of over in thenegative value, level 1 (LOLO), level 2(LO), Level 3 (OK), level 4 (HI), level 5(HIHI) and over in the positive value.
 To use the comparator modes, the function settings “Cp-l” and “Cp” must be
specified and the comparator values must be set.
 Using the function setting “Cp-l”, select a comparator mode.
0: five-level comparator mode
1: three-level comparator mode
2: Seven-level comparator mode (portion weighing mode) Using the function setting “Cp”, select comparison conditions.
0: No comparison (comparator mode disabled).
1: To compare all data.
2: To compare all stable data.
3: To compare all data which are more than or equal to +5d, or lessthan or equal to -5d.
4: To compare stable data which are more than or equal to +5d, or lessthan or equal to -5d.
5: To compare all data which are more than or equal to +5d.
6: To compare stable data which are more than or equal to +5d.
d = minimum display in kg (Refer to “16.1. Specifications”.)
Also in the counting mode, “d” is equal to the minimum display of kg mode.
19

10.1. The formula to compareComparison is performed using the formula listed below and the results are output.
Five-level comparator mode
Results
Comparison formula
LED display
Displayed
value
<
LOLO
limit
value
LOLO
(Or over in the negative value)( Red LED on)
LO

Displayed value < LO limit valueOKLO limit value ≤ Displayed value ≤ HI limit valueHIHI limit value < Displayed value

HIHI

HIHI limit value < Displayed value(Or over in the positive value)

Three-level comparator mode
Results
Comparison formula
Displayed
value< LO limit valueLO(Or over in the negative value)( Yellow LED on)( Green LED on)）( Yellow LED on)( Red LED on)
LED display( Red LED on)

OK

LO limit value ≤ Displayed value ≤ HI limit value( Green LED on)）HI

HI limit value < Displayed value(Or over in the positive value)( Red LED on)

Seven-level comparator mode (portion weighing mode)
Results
Comparison formula
Displayed value < Level 1 lower limit valueNone(Or over in the negative value)
LOLO(Level 1) Displayed value < Level 2 lower limit value
LO(Level 2) Displayed value < Level 3 lower limit value
OK
Level 3 lower limit value ≤ Displayed value ≤(Level 3) Level 3 upper limit value
HI
Level 3 upper limit value < Displayed value(Level 4)
HIHI(Level 5) Level 4 upper limit value < Displayed value
Level 5 upper limit value < Displayed valueNone(Or over in the positive value)

LED display( No LEDs on)( Red LED on)( Yellow LED on)( Green LED on)）( Yellow LED on)( Red LED on)( No LEDs on)

 The comparator values are common to the weighing and counting mode.
 Ignore the decimal point when setting the comparator values.
For example, when the weighing capacity is 6 kg and the setting value is “001000”:
Display mode
Limit value
Capacity / Minimum display
Normal resolution kg
1.000 kg
6.000 kg / 0.002 kg
High resolution kg
1.000 kg
6.000 kg / 0.001 kg
Maximum resolution kg
0.1000 kg
6.0000 kg / 0.0005 kg
Normal resolution oz
100.0 oz
210.0 oz / 0.1 oz
High resolution oz
10.00 oz
210.00 oz / 0.05 oz
Maximum resolution oz
10.00 oz
210.00 oz / 0.02 oz
Counting mode
1000 pcs
 The comparator values are maintained even if the power is turned OFF.
 Judgment order of comparison is from the top row to the bottom in the comparator
mode tables
 The entered comparator values are not judged. Even if the upper limit value is lessthan the lower limit value, no error will be output.
20

10.2. Entering the comparator values
1. In the weighing mode, press and hold the SAMPLE key to enter the comparator
value setting mode.
2. Enter the comparator values using the following keys.
UNITS
To shift the blinking digit to the right.
PRINT
To increase the value of the blinking digit by one.
SAMPLE To switch the polarity.
Each time the key is pressed, “-“ is turned on and off at the leftmost digit. When on, the value is negative.
TARE
To confirm and store the setting value.
3. When the setting is complete, “end” is displayed and the scale returns to theweighing mode. (At this time, power-on-zero is not performed.)Five-levelcomparator mode

Three-levelcomparator mode

21

Seven-levelcomparator mode

11. AUTO-TARE FUNCTION
The SW series has an auto-tare function to be used with the comparator mode enabled.
Using this function in check weighing, the scale automatically tares, then displays “OK”
for a certain amount of sample and repeats this process for the next weighing.
Start with display zero after tare operation. Place or take away objects until thecomparison result will show OK. When the stable display is maintained for the duration
specified in the function setting “at-t”, the scale will automatically tare the weight,
show zero and be ready for next weighing.
 In some countries or areas, the auto-tare function can not be used on the Legal for Trademodels and the selection in the function settings “at”, “at-t” and “at-f” is not available.
 To use the auto-tare function, set the function settings below.

Cp 1:

Compare all weighing data (other settings may be used depending on theapplication).
at 1:
Auto-tare function enabled.
at-t 0 ~ 9: Select the timing to tare automatically to avoid the wrong tare operation, forexample; too early to tare, to take a longer time to go to the next weighing.
 Take-away check weighing “Cp-p 1” (Example with “Cp-l 0” setting)Take-away check weighing (negative comparison) is the way to compare thenegative weight while taking away objects from a container.
Set the function “Cp-p 1” together with the auto-tare function enabled “at 1”. In
this operation mode, the scale operates as “take-away the objects”  “OK andstable”  “auto-tare”  “take-away the objects”  ······.
In this setting, the polarity of LOLO, LO, HI, and HIHI limit values are ignored andthe scale shows the comparator results as below.

Note: To start the take-away check weighing, be sure to use the TARE key to tare
the weight of the container filled with objects. The ZERO key may zero thedisplay, and the scale goes below the zero point by taking out the objects. Then,the auto-tare function does not work.
 When the function “at-f 1 Tares the initial (container) weight.” is selected:
To start the auto-tare function, usually the container (filled with objects) will be placed on
the weighing pan and its weight must be tared using the TARE key. When the function“at-f 1” is selected, the scale will tare the initial (container) weight automatically.
When all load on the weighing pan is removed, the scale will return to the zero point
and the tare weight will be automatically cleared. If the scale does not return to the zero
point, press the ZERO key to clear the tare weight.
 If the scale is equipped with the optional RS-232C serial interface (SW-03) or optional
RS-422/485 serial interface (SW-04), the OK weighing data only can be output
automatically. Set the function setting “prt 5”.
22

12. CALIBRATION
Adjusts the scale for accurate weighing.
Calibrate the scale in the following cases.
 When the scale is first installed.
 When the scale has been moved.
 When the ambient environment has changed.
 For regular calibration.
Note: Calibration can not be performed on the Legal for Trade models.

12.1. Calibration mode The calibration mode has the following three functions.
• Gravity acceleration correction• Calibration using a weight• Restoring the factory set values
 How to enter the calibration mode
Method 1:
1. Make sure that the scale is in the weighing mode (displaying “kg” (“g”), “lb”, “oz” or“pcs”).
2. Press and hold the TARE key until the gravity acceleration value (in thisexample, “G 9.7985”) appears and release the key.
Note: The above operation is disabled for the Legal for Trade models. The Legal for
Trade models can not enter the calibration mode.
Method 2:
1. Make sure that the scale is in the weighing mode (displaying “kg” (“g”), “lb”, “oz” or“pcs”).
2. Remove the screw protection caps on the load cell panel on the bottom of thedisplay. Loosen the four screws and then open the load cell panel. The calibration(CAL) switch is located inside.
3. Press the CAL switch. The scale displays the gravity acceleration value (in thisexample, “G 9.7985”).
Note: The load cell panel for the Legal for Trade models has been sealed using wire
locked screws. The CAL switch does not work on the Legal for Trade models.
Calibration (CAL) switch

Load cell panel

Wire locked screws(Legal for Trade models)23

Press the UNITS
to select an item

key

and
press the TARE
to execute it.

key

To exit from the calibration mode, press theZERO1 key or the CAL switch. The scale
returns to the weighing mode.

12.2. Gravity acceleration correction
When the scale is first used or has been moved to another location, it should becalibrated using a calibration weight.
But if a calibration weight is not available, the gravity acceleration correction willcompensate the scale. Change the gravity acceleration value stored in the scale to thevalue of the area where the scale will be used. Refer to the gravity acceleration map at
the end of this manual.
Note: Gravity acceleration correction is not required when the scale will becalibrated using a calibration weight at the place where it is to be used.
1. Refer to “12.1. Calibration mode” to enter the calibration
mode. The gravity acceleration value is displayed.
2. Press the TARE key to enter the gravity acceleration
value setting mode.

Press

3. Change the displayed value using the following keys.
UNITS

To shift the blinking digit to the right.

PRINT

To increase the value of the blinking digit
by one.

Press

4. Press the TARE key. The setting value is stored and“end” is displayed.
5. When calibration using a calibration weight is to be
performed, go to step 3 of “12.3. Calibration using aweight”.
To finish the setting procedure, press the ZERO1 key or
the CAL switch. The scale returns to the weighing mode.
24

Press

12.3. Calibration using a weight
Prepare a weight, preferably a weight with the same value as the weighing capacity ofthe scale to be calibrated. Note that the calibration weight value can be changed.
1. Turn the power ON and warm up the scale for at least half an hour.
 Change the function setting “poff” or place something on the weighing pan todisable the auto power-off function.
2. Refer to “12.1. Calibration mode” to enter
the calibration mode. The gravity
acceleration value is displayed.
3. Press the

UNITS

key and display “Cal”.

Press

4. Press the TARE key. “Cal 0” is displayed. Confirm
that nothing is placed on the weighing pan and wait for the
STABLE indicator to turn on.
5. Press the TARE key. The scale calibrates the zero
point and displays the value of the calibration weight(SPAN calibration).

Press

 The calibration weight value is equal to the weighing
capacity. (factory setting) When you enter with “kg” (“g”) or “pcs” mode, the value
is in “kg”. With “Ib” or “oz”, then “Ib”.

Press If you want to calibrate only the zero point without
calibrating SPAN, press the ZERO key.
After “end” is dislplayed, go to step 9.
Press
6. To calibrate with a weight different from theweighing capacity, change the displayed value
using the following keys.
UNITS

To shift the digit that is blinking
to the right.

Calibration
weightPRINT

To increase the value of theblinking digit by one.

Weighing pan

 Using a weight with the same value as theweighing capacity is recommended. If otherweights are used, use one with a value greaterthan two-thirds of the capacity.
7. Place the calibration weight with the same value
as displayed on the weighing pan, and wait for
the STABLE indicator to turn on.

Press

8. Press the TARE key. The scale calibrates SPAN and“end” is displayed.
9. To finish the setting procedure, press the ZERO1 key or
the CAL switch. The scale returns to the weighing mode.
Note: If the scale will be moved to another location, set the gravity acceleration
value for the new location and calibrate the scale according to the procedure
above. Refer to the previous section to set the gravity acceleration value.
25

12.4. Restoring the factory set values
If the gravity acceleration value or calibration weight value is changed unintentionally,
restore those values to the factory set values, as follows.

1. Refer to “12.1. Calibration mode” to enter
the calibration mode. The gravity
acceleration value is displayed.

2. Press the“ClrC” .
.

UNITS

key twice to display

Press twice

3. Press the TARE key to display “ClrCno” with “no” blinking.

Press

4. Press the PRINT key.
“ClrC no” changes to “ClrC go” with“go” blinking.

Press

 To cancel the restoring procedure, press theZERO key. The display returns to step 2.
5. When “ClrC go” is displayed, press theTARE key. The factory set values arerestored and “end” is displayed.
To finish the setting procedure, press theZERO1 key or the CAL switch. The scale
returns to the weighing mode.

26

Press

13. FUNCTIONSThe scale has function settings to specify the scale performance.
The parameters set in the function settings are maintained even if the power is turnedOFF.

Parameter

Item

While
holding down,

13.1. Setting the parameterspress

1. Turn the power OFF.
2. Press and hold the TARE key and press the
ON/OFF key to turn the power ON. The software
version is displayed.
 “∗∗∗” indicates the software version number.
3. After about one second, the item is displayed.
4. Change the item or parameter using the following keys.
UNITS

To display the next item.

PRINT

To increase the value of the blinking
digit by one (to change the parameter).

Press

 When the parameter is changed, the
STABLE indicator turns off.
When changed
5. Press the TARE key to store the setting value.
“end”, the power is turned OFF automatically.

After
Press

 To cancel the setting procedure without storing the value, press
the ZERO key. The power is turned OFF automatically.

13.2. Restoring the function settings to thefactory set values
1. Turn the power OFF.
2. Press and hold the TARE key and press the
ON/OFF key to turn the power ON. Only release the
ON/OFF key and hold the TARE key until “Clrfno” with “no” blinking is displayed.
3. Press the PRINT key.
“Clrf no” changes to “Clrf go” with “go” blinking.
4. When “Clrf go” is displayed, press the TARE key. The
factory set values are restored. After “end”, the power isturned OFF automatically.
 To cancel the restoring procedure, press the ZERO key. The
power is turned OFF automatically..
27

Press

Press

13.3. Function list
Item
Auto power-off
functionpoff

Parameter
Description
 0Auto power-off disabled
1

0
 1
2
re5o (See Note)
Weighing unit
 0
Weight display
resolution

Auto power-off enabled
Normal (1/3,000)
High (1/6,000 or 1/7,500)
Maximum (1/12,000 or 1/15,0 00)
kg

Ut-g

1

g

Zero tracking

0

Zero tracking function disabled 1
Stability band
 0
width
1
2
5t-b (See Note)
Stability0
detection time
 1
2
5t-t
Stability
 0
Response speed
1

Zero tracking function enabled±0.5d (width 1d)±1.0d (width 2d)±2.0d (width 4d)
0.5 second
1.0 second
2.0 seconds
Weak stability / fast response
Normal stability / normal response

Cond

Strong stability / slow response

trc

2

 0
1
2
bp5
Serial interface  0data bits / parity
12
btpr
Serial interface  0Data output
1
mode
2
prt
3
4
Serial interface
baud rate

5
6
Serial interface
Type

5if
Serial interface
Address

adr

 0
1
2
##

2400 bps
4800 bps
9600 bps
7 bits / EVEN
7 bits / ODD
8 bits / Non parity
Stream mode / Command mode
Command mode only
Print key mode / Command mode
Auto-print mode +/- data / Command mode
Auto-print mode + data/ Command mode
Auto-print mode +/- data and OK/ Command mode
Auto-print mode + data and OK/ Command mode
RS-232C
RS-422
RS-485## = 00 to 99(Factory setting: ## = 01)

28

Turns the power OFF
automatically
Changes theminimum display
Only SW-6K,15K and
30K can be set
Tracks the zero drift
Conditions to turn the
STABLE indicator on
d = minimum display
in kg
Filtering. Factory
setting for models of
weighing capacity 60
and 150 kg is 1.

Only when the options,RS-232C or RS-422/485,
are used.

Item
Serial interface
Response

Parameter

aCk

 1

Reply to commands

Comparator mode

 0

Cp-l

1
2
 0
1
2
3
4
5
6
0
 1

Five-level
Three-level
Seven-level (portion weighing mode)
Comparator disabled
Sets comparison
Compares all data
conditions
Compares all stable data
Compares all data of ≥ +5d or ≤ -5d
d = minimum display
Compares stable data of ≥ +5d or ≤ -5d
in kgCompares data of ≥ +5d
Compares stable data of ≥ +5d
Low
MediumComparison
conditions

Cp

Key sensitivity

key

0

2
Auto-tarefunctionat(See Note)

Auto-tare timing

at-t(See Note)

Description
No reply except data to commands

High

 0

Auto-tare function disabled

1

Auto-tare function enabled

0
1
 2
3
4
5
6
7
8
9

Immediately after OK and stable
0.5 second after OK and stable
1.0 second after OK and stable
1.5 seconds after OK and stable
2.0 seconds after OK and stable
2.5 seconds after OK and stable
3.0 seconds after OK and stable
4.0 seconds after OK and stable
5.0 seconds after OK and stable
6.0 seconds after OK and stableAuto-tare for the  0
initial weight1
at-f(See Note)

Function disabled

Normal/Negative  0comparison

Normal comparison

Cp-p

Only when the options,RS-232C or RS-422/485,
are used.

Refer to “11. AUTOTARE FUNCTION”

Timing to tareautomatically after
the comparison OK
and stable weight.
To be used with “at 1”.

Automatic operation
Tares the initial (container) weight.

Refer to “11. AUTONegative comparison for take-away TARE FUNCTION”
1check weighing Factory setting
d = minimum display in kg, the minimum mass that can be weighed in kg
Even the counting mode uses “d” for judgment.

(Note: In some countries or areas, “re5o ”, “5t-b ”, “at”, “at-t” and “at-f” arenot available for the Legal for Trade models.)2914. OPTIONS
14.1. Using the HC-02i battery
 The scale can be operated with a sealed lead acid (SLA) battery, available as an
option.
 The scale (with no other options) can be operated continuously for about 90 hours
with a fully charged battery.
 The battery will take about 15 hours to be fully charged.
 The battery life will vary depending on how the scale is used, the ambient temperatureand so on.
 A battery, NP4-6 (6V, 4Ah), manufactured by YUASA, is commercially available.
Caution• There will be risk of leakage, fire or explosion if the battery is connected
improperly or replaced with the incorrect type.
• Dispose of a used battery according to the local laws and regulations.
• Do not handle the battery with wet hands. Take much care not to get the battery wet.
• Do not install the battery under high temperatures and high humidity.
• Even when the battery is used, be sure to prevent the AC plug from getting wet.
M4 screw (10 pcs)

14.1.1. Installing the battery

Display rear coverBattery NP4-6“+” terminal (RED)“-” (BLACK) wire“+” (RED) wire“-” terminal (BLACK)

Display30

1. Disconnect the AC power cable from the electrical outlet.
2. Loosen the M4 screws and remove the rear cover of the display.
Note: Take care not to drop the display.
3. Connect the wires inside the display to the battery with much care so that nothing
touches the keys.
Note: Be sure to connect the RED wire to the positive (+ / RED) terminal andthe BLACK wire to the negative (- / BLACK) terminal. Or there is a riskof explosion.
4. Install the battery into the display.
5. Attach the rear cover to the display and secure it with the screws loosened at step 2.
6. Connect the AC power cable to the electrical outlet.
7. Press the

ON/OFF

key and check that the scale turns ON.

8. Disconnect the AC power cable and check that the scale works normally.

14.1.2. Charging the battery When the display shows “lb” (Low battery), the battery voltage is low and should
be recharged. Turn the scale OFF and connect the AC power cable to an electricaloutlet. The charging process will start.
 Charging will be performed when the AC power cable is connected to an electricaloutlet and the scale is turned OFF. If the scale is turned ON, trickle charging will be
performed.
 The scale can be used while the battery is charging. After fully charged, the scale
will change the charging process to trickle charge automatically.
Notes• Charge the battery at a temperature between 0°C (32°F) and 40°C (104°F),
preferably, at a range of 5°C (41°F) to 35°C (95°F) .
• Charge the battery when using for the first time.
• The battery must be recharged regularly, every 3 to 6 months, if the scale is
not used for a long period of time. More frequent recharging is required in a
warmer area.

31

14.2. SW-03 RS-232C / RELAY OUTPUT
This interface allows the SW scale to be connected to an AD-8127 printer or apersonal computer, and the relay outputs for comparator results are also available.
 When SW-03 is installed, the dust-tight and water-tight performance of the scale will
be degraded.
 SW-03 includes an interface board, two connector cables (7 and 10 pins), two cableglands (for cable diameter 3.5 to 7.0 mm) and two screws (M3x8).

14.2.1. Installing SW-03
M4 screw (10 pcs)
Display rear coverM3x8 screws
Interface board
Connector cables
Cable glands
Note
Six-pin or seven-pin terminal
block. Pin 7 of the seven-pin
terminal block is not used.

To theexternal device
Peel
6 mm
(AWG 26~16)

Terminal block32

1.LOLO
2.LO
3.OK
4.HI
5.HIHI
6.COM
Not used
1.RXD
2.TXD
3.DSR
4.SG
5.SHLD1. Disconnect the AC power cable from the electrical outlet. When the battery is
installed, make sure that the scale is turned OFF.
2. Loosen the M4 screws and remove the rear cover of the display.
Note: Take care not to drop the display.
3. Connect the cables to the external device through the cable gland to the terminal
blocks on the interface board.
4. Attach the connector cables (7 and 10 pins), provided with SW-03, to theconnectors on the interface board and the connectors on the main board inside thedisplay.
5. Secure the interface board using the two M3 x 8 screws provided with SW-03.
6. Tighten the cable glands and attach the rear cover to the display and secure it withthe screws loosened at step 2.
7. Connect the AC power cable to the electrical outlet.
8. Set the function setting “5if” to “0”.
And set the function settings “bp5”, “btpr”, “prt” and “aCk” as necessary.
 RS-232C cables, for connecting the SW-03 interface board with external devices,
are available as options that are sold separately.
• AX-KO3285-320 --- Optional cable unit for connection with a personal computer (3 m)• AX-KO3341-320 --- Optional cable unit for connection with an AD-8127 printer (3 m)
Refer to the following to use these cables.

Preparation
AX-KO3285-320(1) Remove about 6 mm from the end of the black heat shrink tubing and 6 mm ofinsulation from the end of the red, black, green and blue wires.
(2) Apply electrical tape to each of the other wires to avoid short circuits.
AX-KO3341-320(1) Remove about 6 mm of insulation from the end of the orange and purple wires.
(2) Apply electrical tape to each of the other wires to avoid short circuits.

Connection
Connect wires to the RS-232C terminal block of the SW-03 interface board as listed below.
AX-KO3285-320: To a personal computer
SW-03 terminal block
Cable
1. RXD--Black (Pin 3)
2. TXD--Red (Pin 2)
3. DSR--Blue (Pin 6)
4. SG--Green (Pin 5)
5. SHLD--Black heat shrink
tubing-covered wire
33

AX-KO3341-320: To a printerSW-03 terminal block
Cable
1. RXD
2. TXD--- Orange (Pin 3)
3. DSR
4. SG--- Purple (Pin 7)
5. SHLD When connecting to an external device with hardware flow control, communication
will be impossible using a cable without RTS and CTS connected. In that case,connect RTS and CTS. This will disable hardware flow control, but will enablecommunication.
• When the connector of an external device is a D-Sub 9-pin connector, pin 7
is RTS and pin 8 is CTS.
• When the AX-KO3285-320 cable is used, RTS and CTS are internallyconnected and the above operation is unnecessary.

14.2.2. SW-03 specifications
RS-232C interface
Transmission form
Data format

Asynchronous, bi-directional, half-duplex
Baud rate: 2400, 4800, 9600 bps
Data bits: 7 bits + parity 1bit (EVEN / ODD)
or 8 bits (non parity)
Start bit:
1 bit
Stop bit:
1 bit
Code:
ASCII
Terminator: CRLF (CR:0Dh, LF:0Ah)
LSB
0

1

Start bit

2

3

4

MSB
5
6

Data bits

Relay output
The maximum rating of the replay output is as follows.
 Maximum voltage:

50V DC Maximum current:

100 mA DC

 Maximum ON resistance:8Ω

34

Parity bit

1 (-15V~-5V)
0 (5V~15V)
Stop bitCircuit diagram
1
2
3
4
5

Receive data RXD
Transmit data TXD
Data set ready DSR
Signal ground SG
Shield SHLD SW is designed as DCE (Data Communication Equipment).

LOLO

1
2
3
4
5
6

LO

OK

Relay output LOLO
Relay output LO
Relay output OK
Relay output HI
Relay output HIHI
Relay common COM

HI

HIHI

SW inside

Solid sate relay
Data format
S

T

,

+

0

0

Header

0

0

0

Data

.

0

0

_

k
Unit

g CR LF
Terminator There are 4 headers for the weighing data.
ST:
QT:
US:
OL:

Stable weighing data
Stable counting data
Unstable weighing data
Out of weighing range

 The data consists of 9 characters including the polarity and decimal point.
 There are 5 units.
_ k g: Weighing mode “kg”
_ _ g: Weighing mode “g”_ l b: Weighing mode “lb”
_ o z: Weighing mode “oz”
_ PC: Counting mode “pcs”
 As a terminator, CRLF is always output.
35 Data example
1

2

.

3

4

5 _

k

g CR LF

0

0 0

0

1

2

3

4 _

_

g CR LF

,

+ 0

0 0

1

2

3

4

5 _ P C CR LF

,

+ 9

9 9

9

.

9

9

9 _

Weighing data “kg” (+)

S T

,

+ 0 0

Weighing data “g” (-)

S T

,

-

Counting data “pcs” (+)

Q T

Out of weighing range (+)

O L

kg CR LF

Data output mode (prt) Command mode
The scale is controlled by commands that come from an external device such as apersonal computer. For details, refer to “14.2.3. Command mode”.
 Stream mode (prt 0)
Data is sent continuously. The data update rate is approximately 10 times per
second, the same as the display refresh rate.
There will be no output during the setting procedures.
 Print key mode (prt 2)
When the weight display is stable, data is sent by pressing the PRINT key.
At this time, the display flashes once to indicate that the data is sent.
 Auto-print mode +/- data (prt 3)
When the weight display is stable at ±5d (d = minimum display in kg) and above+5d or below -5d, the data is sent. The next transmission can not occur until after
the weight display falls between –4d and +4d.
 Auto-print mode + data (prt 4)
When the weight display is stable at +5d (d = minimum display in kg) and above,the data is sent. The next transmission can not occur until after the weight display
falls +4d or below.
 Auto-print mode +/- data and OK (prt 5)
When the weight display is stable and OK as a comparison result at ±5d (d =minimum display in kg) and above +5d or below -5d, the data is sent. The nexttransmission can not occur until after the weight display falls between –4d and +4d.
 Auto-print mode + data and OK (prt 6)
When the weight display is stable and OK as a comparison result at +5d (d =minimum display in kg) and above, the data is sent. The next transmission can notoccur until after the weight display falls +4d or below.
Baud Rate (bp5)
Select the baud rate according to the device to be connected.
 2400 bps (bp5 0)

Select 2400 bps to connect to an AD-8127 printer.

 4800 bps (bp5 1)
 9600 bps (bp5 2)
36

14.2.3. Command mode
In the command mode, the scale is controlled by commands that come from anexternal device such as a personal computer.
Command List
Command
Description
Q
Send data immediately.
Z
Zero the scale when the weight is stable.
T
Tare the scale when the weight is stable.
U
Switch the weighing unit.
When the five-level comparator mode is used:
Not used
When the three-level comparator mode is used:?H3
Not used
When the seven-level comparator mode is used:
Send the current level 5 upper limit value.
When the five-level comparator mode is used:
Send the current HIHI limit value.
When the three-level comparator mode is used:?H2
Send the current HI limit value.
When the seven-level comparator mode is used:
Send the current level 4 upper limit value.
When the five-level comparator mode is used:
Send the current HI limit value.
When the three-level comparator mode is used:?H1
Not used
When the seven-level comparator mode is used:
Send the current level 3 upper limit value.
When the five-level comparator mode is used:
Send the current LO limit value.
When the three-level comparator mode is used:?L1
Not used
When the seven-level comparator mode is used:
Send the current level 3 lower limit value.
When the five-level comparator mode is used:
Send the current LOLO limit value.
When the three-level comparator mode is used:?L2
Send the current LO limit value.
When the seven-level comparator mode is used:
Send the current level 2 lower limit value.
When the five-level comparator mode is used:
Not used
When the three-level comparator mode is used:?L3
Not used
When the seven-level comparator mode is used:
Send the current level 1 lower limit value.
37

Remarks
Same as the ZERO key.
Same as the TARE key.
Same as the UNITS key.

Send a setting value.
Function settings
Five-level (Cp-l 0)
Three-level (Cp-l 1)
Seven-level (Cp-l 2)

CommandDescription
When the five-level comparator mode is used:
Not used

H3

When the three-level comparator mode is used:
Not used
When the seven-level comparator mode is used:
Set the level 5 upper limit value.
When the five-level comparator mode is used:
Set the HIHI limit value.

H2

When the three-level comparator mode is used:
Set the HI limit value.
When the seven-level comparator mode is used:
Set the level 4 upper limit value.
When the five-level comparator mode is used:
Set the HI limit value.
When the three-level comparator mode is used:
Not used
When the seven-level comparator mode is used:
Set the six-digit value excluding
Set the level 3 upper limit value.
the polarity and decimal point
When the five-level comparator mode is used:
Set the LO limit value.
When the three-level comparator mode is used:
Not used
When the seven-level comparator mode is used:
Set the level 3 lower limit value.
When the five-level comparator mode is used:
Set the LOLO limit value.
When the three-level comparator mode is used:
Set the LO limit value.
When the seven-level comparator mode is used:
Set the level 2 lower limit value.
When the five-level comparator mode is used:
Not used
When the three-level comparator mode is used:
Not used
When the seven-level comparator mode is used:
Set the level 1 lower limit value.

H1

L1

L2

L3

38

Remarks

Command examples (“_” indicates “Space” (20H).)
The examples below are for the function setting “aCk 1 “ (Reply to commands).
 Request the weight data.
Command Q CR LF
Reply

S T

,

+ 0

0

1

2

.

3

4

5

_

k

g CR LF Stable positive data

U S

,

+ 0

0

0

7

.

8

9

0

_

k

g CR LF Unstable positive data

O L

,

+ 9

9

9

9

.

9

9

9

_

k

g CR LF ‘E’ display Zero the scale. (No reply for the function setting “aCk 0 “.)Command Z CR LF
Reply

Z CR LF The scale is in a condition that zero operation is possible.

 Tare the scale. (No reply for the function setting “aCk 0 “.)Command T CR LF
Reply

T CR LF The scale is in a condition that tare operation is possible.

 Switch the weighing unit. (No reply for the function setting “aCk 0 “.)Command U CR LF
Reply

U CR LF Switch the weighing unit to the next weighing unit.

 Five-level comparator mode…Not used
Three-level comparator mode…Not used
Seven-level comparator mode…Send the current level 5 upper limit value.
Command ? H 3 CR LF
Reply

H 3

,

+ 0

0

0

5

0

0 C R LF

 Five-level comparator mode…Send the current HIHI limit value.
Three-level comparator mode…Send the current HI limit value.
Seven-level comparator mode…Send the current level 4 upper limit value.
Command ? H 2 CR LF
Reply

H 2

,

+ 0

0

0

4

0

0 CR LF

 Five-level comparator mode…Send the current HI limit value.
Three-level comparator mode…Not used
Seven-level comparator mode…Send the current level 3 upper limit value.
Command ? H 1 CR LF
Reply

H 1

,

+ 0

0

0

3

0

0 CR LF

39

 Five-level comparator mode…Send the current LO limit value.
Three-level comparator mode…Not used
Seven-level comparator mode…Send the current level 3 lower limit value.
Command ? L 1 CR LF
Reply

L

1

,

+ 0

0

0

2

0

0 CR LF

 Five-level comparator mode…Send the current LOLO limit value.
Three-level comparator mode…Send the current LO limit value.
Seven-level comparator mode…Send the current level 2 lower limit value.
Command ? L 2 CR LF
Reply

L

2

,

+ 0

0

0

1

0

0 C R LF

 Five-level comparator mode…Not used
Three-level comparator mode…Not used
Seven-level comparator mode…Send the current level 1 lower limit value.
Command ? L 3 CR LF
Reply

L

3

,

+ 0

0

0

0

0

0 CR LF

 Five-level comparator mode…Not used
Three-level comparator mode…Not used
Seven-level comparator mode…Set the level 5 upper limit value.
(No reply for the function setting “aCk 0 “.)
Set the six-digit value excluding the polarity and decimal point.
Command H 3 , + 0 0 0 5 0 0 CR LF
Reply

H 3

,

+ 0

0

0

5

0

0 CR LF

 Five-level comparator mode…Set the HIHI limit value.
Three-level comparator mode…Set the HI limit value.
Seven-level comparator mode…Set the level 4 upper limit value.
(No reply for the function setting “aCk 0 “.)
Set the six-digit value excluding the polarity and decimal point.
Command H 2 , + 0 0 0 4 0 0 CR LF
Reply

H 2

,

+ 0

0

0

4

0

0 CR LF

 Five-level comparator mode…Set the HI limit value.
Three-level comparator mode…Not used
Seven-level comparator mode…Set the level 3 upper limit value.
(No reply for the function setting “aCk 0 “.)
Send the six-digit value excluding the polarity and decimal point.
Command H 1 , + 0 0 0 3 0 0 CR LF
Reply

H 1

,

+ 0

0

0

3

0

0 C R LF

40

 Five-level comparator mode…Set the LO limit value.
Three-level comparator mode…Not used
Seven-level comparator mode…Set the level 3 lower limit value.
(No reply for the function setting “aCk 0 “.)
Send the six-digit value excluding the polarity and decimal point.
Command L 1 , + 0 0 0 2 0 0 CR LF
Reply

L

1

,

+ 0

0

0

2

0

0 CR LF

 Five-level comparator mode…Set the LOLO limit value.
Three-level comparator mode…Set the LO limit value.
Seven-level comparator mode…Set the level 2 lower limit value.
(No reply for the function setting “aCk 0 “.)
Send the six-digit value excluding the polarity and decimal point.
Command L 2 , + 0 0 0 1 0 0 CR LF
Reply

L

2

,

+ 0

0

0

1

0

0 CR LF

 Five-level comparator mode…Not used
Three-level comparator mode…Not used
Seven-level comparator mode…Set the level 1 lower limit value.
(No reply for the function setting “aCk 0 “.)
Send the six-digit value excluding the polarity and decimal point.
Command L 3 , + 0 0 0 0 0 0 CR LF
Reply

L

3

,

+ 0

0

0

0

0

0 CR LF

Replies to the commands other than examples above when the function setting “aCk 1 “ isselected.
 The scale is not in a state where a command could be executed. Then, the scale will reply “I”.
Command Z CR LF
Reply

I CR LF The scale is not in a condition that zero operation is possible.

 Command does not exist for the scale. Then, the scale will reply “?”.
Command B CR LF
Reply? CR LF The scale received an undefined command.

 When the function setting “aCk 0 “ is selected, undefined commands are ignored
and no reply is sent.

41

14.3. SW-04 RS-422 / 485
This interface allows a personal computer to connect and control up to 16 scales.
 When SW-04 is installed, the dust-tight and water-tight performance of the scale will
be degraded.
 SW-04 unit includes an interface board, a connector cable (10 pins), two cableglands (for cable diameter 3.5 to 7.0 mm) and two screws (M3x8).

14.3.1. Installing SW-04
M4 screw (10 pcs)
Display rear coverM3x8 screws
Interface board
Connector cable
Cable glands

Peel

Connect toan external device
other SW
6 mm
(AWG 26~16)

Terminal block

42

1.SDA
2.SDB
3.RDA
4.RDB
5.TRM
6.SG
7.SHLD
1.SDA
2.SDB
3.RDA
4.RDB
5.TRM
6.SG
7.SHLD The installation procedure is the same as for SW-03. Refer to “14.2.1. Installing SW03”.
 Set the function settings “bp5”, “btpr”, “prt”, “5if”, “adr” and “aCk” asnecessary.
 Before using SW-04, the function setting “5if” must be set to specify whether RS422 or RS-485 is used.
To connect more than one scale to a computer, set a different address to eachscale using the function setting “adr”.

14.3.2. SW-04 specifications
RS-422/485 interface
Transmission system EIA RS-422 / 485
Transmission form
Asynchronous, bi-directional, half-duplex
Data format
Baud rate: 2400, 4800, 9600 bps
Data bits: 7 bits + parity 1bit (EVEN / ODD)
or 8 bits (non parity)
Start bit:
1 bit
Stop bit:
1 bit
Code:
ASCII
Terminator: CRLF (CR:0Dh, LF:0Ah)
LSB
0Start bit

1

2

3

4

Data bits

MSB
5
6

Parity bit

A-B
1 (-2V~-5V)
0 (2V~5V)
Stop bit

Circuit diagram
1
2
3
4
5
6

100Ω

SDA (RS-422 Out)SDB (RS-422 Out)RDA (RS-422 In / RS-485 In-Out)
RDB (RS-422 In / RS-485 In-Out)
TRM (Termination)
SG (Signal ground)

7 SHLD (Shield)

1
2
3
4
5

SDA (RS-422 Out)SDB (RS-422 Out)RDA (RS-422 In / RS-485 In-Out)
RDB (RS-422 In / RS-485 In-Out)
TRM (Termination)

6 SG (Signal ground)
7 SHLD (Shield)

43

Example of connection
RS-422
Host computer

Terminator (may bebuilt in the computer).

RS-485

Terminator (may bebuilt in the computer).

RDA
RDB
SDA
SDB

Host computerSW
Address 01

SDA
SDB
RDA
RDB
TRM

SW
Address 01

SDA
SDB
RDA
RDB
TRM

SW
Address 02

SDA
SDB
RDA
RDB
TRM

SW
Address 02

SDA
SDB
RDA
RDB
TRM

SW
Address 16

SDA
SDB
RDA
RDB
TRM

SW
Address 16

SDA
SDB
RDA
RDB
TRM

A
B

Connect TRM to RDB
at the farthest SW fromthe host computer.

 The polarity (A, B) of the host computer signal depends on the computer model.
Check the technical manual of the computer.
Data format
The data format for the RS-422/485 is the same as the RS-232C except the following: When used with the function setting “5if 1” (RS-422) or “5if 2” (RS-485), set a
different address to each scale using the function setting “adr##”. ((##=01 to 99)
 Start all commands with “@##” (## is the address of the scale to send a command).
All replies from the scale start with “@##”.
The format after “@##” is the same as the RS-232C, both in commands and replies.
 When used with the RS-485 interface (function setting: “5if 2”), note the following:• When sending commands continuously, leave an interval of 500 ms or more
between commands.
• Do not use stream mode (function setting: “prt 0”) when sending commands.
Commands will not be received correctly and will be invalid.
44

Command examples (“_” indicates “Space” (20H).)
The examples below are for the function setting “aCk 1 “ (Reply to commands).
The address ## = 23.
 Request a weight data.
Command @ 2 3 Q CR LF
Reply@ 2 3 S T,

+ 0 0 1 2.

3 4 5 _ k g CR LF Stable data

@ 2 3 U S,

+ 0 0 0 7.

8 9 0 _ k g CR LF Unstable data

@ 2 3 O L,

+ 9 9 9 9.

9 9 9 _ k g CR LF “E” display Zero the scale. (No reply for the function setting “aCk 0 “.)Command @ 2 3 Z CR LF
Reply@ 2 3 Z CR LF The scale is in a condition that zero operation is possible.

ibl
 Send the current LO limit value.
Command @ 2 3 ? L 1 CR LF
Reply@ 2 3 L 1,

+ 0 0 0 2 0 0 CR LF

45

15. MAINTENANCE
15.1. Notes on maintenance Do not disassemble the scale. Contact your local A&D dealer if the scale needs
service or repair.
 Use the original packaging for transportation.
 Do not use organic solvents to clean the scale. Use a warm lint free cloth
dampened with a mild detergent.
 The scale can be washed with water. The weighing platform has a structure that iseasy to wash and does not collect dust.
 When cleaning with water, please use fresh water. Make sure that no water
droplets remain after cleaning.
 Calibrate the scale periodically to maintain the weighing accuracy.

15.2. Error codes
Overload error
Indicates that an object beyond the weighing capacity
has been placed on the weighing pan.
Remove the object from the weighing pan.
Underload error
Indicates that the weight sensor receives a strong
upward force. Check if the weighing pan is touching
anything or if there is anything in the base. There is apossibility that the weight sensor or internal circuit may
have a problem.
Unit weight error
Indicates that the sample weight is too light to set the unit
weight in the counting mode.

CAL error
Indicates that the calibration procedure is canceled
because the calibration weight is too light.
Check that the weighing pan is installed properly and themass of the calibration weight.
Low battery
Indicates that the HC-02i battery is depleted.
Charge the battery immediately.

46

Internal error

1

Indicates that the mass sensor is malfunctioning.

2

Indicates that the temperature sensor is malfunctioning.

3

Indicates that the internal circuit is malfunctioning.

4

Indicates that the memory (storage device) is malfunctioning.

5

Indicates that the touch-sensitive switch is malfunctioning.

Note: If the error persists or other errors occur, contact your local A&D dealer.

47

16. SPECIFICATIONS
16.1. Specifications
MODEL
Weighing capacity
kg

Minimum display
Weighing capacityg

Minimum display
Weighing capacitylb

Minimum display
Weighing capacityoz

Minimum display

Weighing capacity
Minimum display
Number of samples
Maximum count
Minimum unit weight
Repeatability(Std. deviation)
Linearity
Sensitivity drift
Ib-oz

Display
Display update
Operating conditions
Power supply
Weighing pan size
Dimensions(Models with a display pole)
Mass (approximately)(Models with a display pole)
Calibration weight(factory setting)

SW-6KS
SW-15KS
SW-15KM
SW-30KM
6
15
15
30
0.002
0.005
0.005
0.01
0.001 *
0.002 *
0.002 *
0.005 *
0.0005
0.001
0.001
0.002
6000
15000
15000
30000
2
5
5
10
1*
2*
2*
5*
0.5
1
1
2
13
33
33
66
0.005
0.01
0.01
0.02
0.002*
0.005*
0.005*
0.01*
0.001
0.002
0.002
0.005
210
520
520
1050
0.1
0.2
0.2
0.5
0.05*
0.1*
0.1*
0.2*
0.02
0.05
0.05
0.1
13
33
33
66
0.1
0.1
0.1
0.1
5 (can be changed to 10, 20, 50 or 100) pieces
120,000 pcs
150,000 pcs
150,000 pcs
150,000 pcs
0.00005 kg
0.0001 kg
0.0001 kg
0.0002 kg
0.001 kg

0.002 kg

0.002 kg

0.005 kg

±0.002 kg±0.005 kg±0.005 kg±0.01 kg
±20 ppm / °C (5°C to 35°C / 41°F to 95°F)
Weight display: 7 segment LED display (character height 14.6 mm)
Comparison results: red / yellow / green / yellow / red LED
10 times per second-10°C to 40°C / 14°F to 104°F
AC main (100 V to 240 V, 50/60 Hz, 20 VA)
oroptional SLA battery (continuous operation of 90 hours
depending on how the scale is used)
250 x 250 mm / 9.8 x 9.8 in.
300 x 380 mm / 11.8 x 15.0 in.
250 (W) x 480 (D) x 353.5 (H) mm 300 (W) x 601 (D) x 722.5 (H) mm
9.8 (W) x 18.9 (D) x 13.9 (H) in.
11.8 (W) x 23.7 (D) x 28.4 (H) in.
7.7 kg / 17.0 Ib
6 kg
12 lb

15 kg
30 lb

* Factory setting

48

13.0 kg / 28.7 Ib
15 kg
30 lb

30 kg
60 lb

MODEL
Weighing capacitykg

SW-60KM
SW-150KM
SW-60KL
SW-150KL
60
150
60
150
0.02
0.05
0.02
0.05
0.01 *
0.02 *
0.01 *
0.02 *
0.005
0.01
0.005
0.01
130
330
130
330
0.05
0.1
0.05
0.1
0.02*
0.05*
0.02*
0.05*
0.01
0.02
0.01
0.02
2100
5200
2100
5200
1
2
1
2
0.5*
1*
0.5*
1*
0.2
0.5
0.2
0.5
130
330
130
330
1
1
1
1
5 (can be changed to 10, 20, 50 or 100) pieces
120,000 pcs
150,000 pcs
120,000 pcs
150,000 pcs
0.0005 kg
0.001 kg
0.0005 kg
0.001 kg

Minimum display
Weighing capacitylb

Minimum display
Weighing capacityoz

Minimum display

Weighing capacity
Minimum display
Number of samples
Maximum count
Minimum unit weight
Repeatability(Std. deviation)
Linearity
Sensitivity drift
Ib-oz

Display
Display update
Operating conditions
Power supply
Weighing pan size
Dimensions(Models with a display pole)
Mass (approximately)(Models with a display pole)
Calibration weight(factory setting)

0.01 kg

0.02 kg

0.01 kg

0.02 kg±0.02 kg
±0. 05 kg±0.02 kg
±0. 05 kg±20 ppm / °C (5°C to 35°C / 41°F to 95°F)
Weight display: 7 segment LED display (character height 14.6 mm)
Comparison results: red / yellow / green / yellow / red LED
10 times per second-10°C to 40°C / 14°F to 104°F
AC main (100 V to 240 V, 50/60 Hz, 20 VA)
oroptional SLA battery (continuous operation of 90 hours
depending on how the scale is used)
300 x 380 mm / 11.8 x 15.0 in. 390 x 530 mm / 15.4 x 20.9 in.
300 (W) x 601 (D) x 722.5 (H) mm 390 (W) x 751 (D) x 722.5 (H) mm
11.8 (W) x 23.7 (D) x 28.4 (H) in.
15.4 (W) x 29.6 (D) x 28.4 (H) in.
13.0 kg / 28.7 Ib
60 kg
120 lb150 kg300 lb

16.2 kg / 35.7 Ib
60 kg
120 lb150 kg300 lb* Factory setting
Options
HC-02iSLA Sealed Lead Acid battery (YUASA NP4-6 recommended)

SW-03

RS-232C / Relay output

SW-04

RS-422 / 485

Note: The options, SW-03 and SW-04, can not be used at the same time.

49

16.2. External dimensions0/

60/9 0 °

φ42.7

353.5

0/3

●SW-6KS / SW-15KS (with a display pole)98

AC power cable

202

179

0/ 3

●SW-15KM / SW-30KM / SW-60KM / SW-150KM (with a display pole)0/60/9 0 °

722.5

AC power cable

117.5

φ42.7

228

331

Unit: mm

50

0
/6

/9 0 °

0/ 3

0●SW-60KL / SW-150KL (with a display pole)722.5

AC power cable

126.5

φ42.7

481

318

●Display with a stand attached
315

152.5
197.5

135.9

90

283

6-φ5

110

70
250

Unit: mm51

GRAVITY ACCELERATION MAP
Values of gravity at various locations
Amsterdam
AthensAuckland NZ
BangkokBirmingham
Brussels
Buenos Aires
Calcutta
Cape Town
ChicagoCopenhagen
CyprusDjakarta
Frankfurt
Glasgow
HavanaHelsinki
KuwaitLisbonLondon (Greenwich)
Los Angeles
Madrid

9.813 m/s2
9.807 m/s2
9.799 m/s2
9.783 m/s2
9.813 m/s2
9.811 m/s2
9.797 m/s2
9.788 m/s2
9.796 m/s2
9.803 m/s2
9.815 m/s2
9.797 m/s2
9.781 m/s2
9.810 m/s2
9.816 m/s2
9.788 m/s2
9.819 m/s2
9.793 m/s2
9.801 m/s2
9.812 m/s2
9.796 m/s2
9.800 m/s2

ManilaMelbourne
Mexico City
Milan
New York
Oslo
OttawaParis
Rio de Janeiro
Rome
San Francisco
Singapore
Stockholm
SydneyTaichung
TainanTaipeiTokyo
Vancouver, BC
Washington DC
Wellington NZ
Zurich52

9.784 m/s2
9.800 m/s2
9.779 m/s2
9.806 m/s2
9.802 m/s2
9.819 m/s2
9.806 m/s2
9.809 m/s2
9.788 m/s2
9.803 m/s2
9.800 m/s2
9.781 m/s2
9.818 m/s2
9.797 m/s2
9.789 m/s2
9.788 m/s2
9.790 m/s2
9.798 m/s2
9.809 m/s2
9.801 m/s2
9.803 m/s2
9.807 m/s2

World map

53

MEMO

54

THIS PAGE INTENTIONALLY LEFT BLANK.

A&D Company, Limited

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

A&D ENGINEERING, INC.

47747 Warm Springs Blvd, Fremont, California 94539, U.S.A.
Tel: [1] (800) 726-3364
Weighing Support:[1] (888) 726-5931

Inspection Support:[1] (855) 332-8815

A&D INSTRUMENTS LIMITED

Unit 24/26 Blacklands Way, Abingdon Business Park, Abingdon, Oxfordshire
Telephone: [44] (1235) 550420
Fax: [44] (1235) 550485

OX14 1DY

United Kingdom

A&D AUSTRALASIA PTY LTD

32 Dew Street, Thebarton, South Australia 5031, AUSTRALIA
Telephone: [61] (8) 8301-8100
Fax: [61] (8) 8352-7409

A&D KOREA Limited

한국에이.엔.디(주)OOO A&D RUS

OOO "ЭЙ энд ДИ РУС"서울특별시 영등포구 국제금융로6길33 (여의도동) 맨하탄빌딩 817 우편 번호 07331( 817, Manhattan Bldg., 33. Gukjegeumyung-ro 6-gil, Yeongdeungpo-gu, Seoul, 07331 Korea )전화: [82] (2) 780-4101
팩스: [82] (2) 782-4264

Почтовый адрес:121357, Российская Федерация, г.Москва, ул. Верейская, дом 17Юридический адрес: 117545, Российская Федерация, г. Москва, ул. Дорожная, д.3, корп.6, комн. 8б
( 121357, Russian Federation, Moscow, Vereyskaya Street 17 )тел.: [7] (495) 937-33-44
факс: [7] (495) 937-55-66

A&D Instruments India Private Limited

D-48( D-48, Udyog Vihar, Phase- , Gurgaon - 122016, Haryana, India ): [91] (124) 4715555: [91] (124) 4715599

A&D SCIENTECH TAIWAN LIMITED.

A&D台灣分公司 艾安得股份有限公司

台湾台北市中正區青島東路 5 號 4 樓
( 4F No.5 Ching Tao East Road, Taipei Taiwan R.O.C. )Tel : [886](02) 2322-4722
Fax : [886](02) 2392-1794

A&D INSTRUMENTS (THAILAND) LIMITEDบริษัท เอ แอนด์ ดี อินสทรูเม้นท์ (ไทยแลนด์) จำกัด
168/16 หมู่ที่ 1 ตำบลรังสิต อำเภอธัญบุรี จังหวัดปทุมธานี 12110 ประเทศไทย
( 168/16 Moo 1, Rangsit, Thanyaburi, Pathumthani 12110 Thailand )Tel : [66] 20038911