LW MEASUREMENTS Army Aviation SCT Series User manual

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Army Aviation
SCT Series
Electronic Counting
Scale Manual

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Contents
【1】 ATTENTION..........................................................3
1.1 CONVENTIONAL ATTENTION
1.2 ATTENTION BEFORE USING
【2】INSTALLATION………………………………………4
2.1 BODY INSTALLATION
2.2 BATTERY REPLACEMENT
【3】INSTRUCTION………………………………………5
3.1 PARAMETERS
3.2 POWER SUPPLY
【4】DISPLAY…………………………………………….6
4.1 PANEL DESCRIPTION
4.2 KEY DESCRIPTION
4.3 DISPLAY DESCRIPTION
【5】OPERATION……………………………………..…9
【6】FUNCTION SETTING………………………………20
【7】RS232 OUTPUT FORMAT……………………….25
【8】ERROR MESSAGES ………………………..….27
【9】SPECIFICATIONS…………………………………28
【10】WARRANTY…………………………………..……28

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First of all, thank you for purchasing the Army Aviation
SCT series electronic counting scale of our company. The
high quality and reliability of the product will make you
satisfied. By means of the product, you will be able to fully
realize the high quality and reliability of our scale, and believe
that our product can fully meet your requirements. There are
specific methods of installation, operation and maintenance in
this manual. In order to apply the scale well , you must read
the manual carefully before using.
【1】 ATTENTION
1.1 CONVENTIONAL ATTENTION
zThe object is forbidden to fall down on the pan.
zDon’t locate the scale in poor working condition.
zLocate the scale in stipulated condition to apply.
zDon’t take scale out or move around by pan.
zKeep the scale clean if the product will not be used for
a long time and recharge the battery once every three
months. When applying the product again a long time
later, you must recharge the battery at first.
zThe maintenance must be done by specialist.

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1.2 ATTENTION BEFORE USING
1. Locate the scale on a clean, firm working table with flat
surface to keep away from vibration, heat sources, or rapidly
changed temperature. Adjust the 4 leveling feet so that the
bubble is centered in the circle and be sure the scale is level
each time after its location is changed.
2. Connect the AC adapter to the independent power supply
for avoiding interference from other equipments.
3. Be sure no loads on the pan when turn scale on.
4. Electrify to preheat the scale for 3-5 minutes before useing.
5. For weighing accuracy, the center of gravity of object
should be placed in the central area of and beyond the edge of
pan.
【2】INSTALLATION
2.1 BODY INSTALLATION
1．Contents in Carton
No. Name Unit Qty.
1 Body pc 1
2 Pan pc 1
3 Manual pc 1
4 Qualification pc 1

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5 Inner Packing pc 1
6 AC Adapter pc 1
2. Locate the scale’s body on a firm and horizontal working
table with the flat surface , adjust the feet to keep the scale
stable and level as when the bubble is centered in the circle.
3. Put the pan on the body and press 【ON/OFF】key to turn on
the scale in weighing interface.
2.2 BATTERY REPLACEMENT
1. Take down the pan, open the housing and disconnect the
battery joints.
2. Put new battery in the position and connect poles correctly.
Warning：The positive and negative poles of lead-acid battery
can not be in short circuit or electrode reverse, which
otherwise make the battery damaged and burn.
Connection: Red wire to red pole and black wire to black pole.
3. Screwing the housing and put the pan on again, battery
replacement is over.
【3】INSTRUCTION
3.1 PARAMETERS
Accuracy：III

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Precision：(3000-300000）d，（3000d,dual range）approved
Working Voltage：5V
Sample Rate: 20 times/Sec.
Resolution：1 million
3.2 POWER SUPPLY
AC Adapter：Input 100V~240V，Output 12V/1A
Battery Specification: 6V4AH
【4】DISPLAY
4.1 PANEL DESCRIPTION
R2
R1
SCT Panel
Description：HI (red light),OK (green light) and LO (yellow
light) indicates when check weight function works.

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4.2 KEY DESCRIPTION
【0~9】：The input digit displays on screen
【. 】：Decimal Point
【C 】：Clear the displayed digit on screen
【SMPL】：Calculate a new average unit weight
【RSMPL】：Recalculate a new average unit weight
【ON/OFF】：Turn on when power off and turn off when power
on
【TARE】：Perform Tare Function
【ZERO】：Perform Zero Setting Function
【PRINT】：Perform Print Function
【UWS】：Confirm the input unit weight
【CK】： Cooperate with other keys to set the upper-lower
limit
【RETURN】：Return to weighing interface when setting
【M+/HI】：1. Perform accumulation function in weighing
interface, then the symbol M+ is bright. 2. Cooperate with
check weight key to input the upper limit.
【MR/LO】：1. Perform to redisplay function in weighing
interface, then the symbol MR is bright. 2.Cooperate with
check weight key to input the lower limit.
【MC】：Perform to clear accumulated value , then the symbol

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MC is bright.
Notice:：The interval time for pressing key is less than 1
second.
4.3 DISPLAY DESCRIPTION
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No. Description No. Description
1 Stable Symbol 7 MR Symbol
2 Zero Symbol 8 MC Symbol
3 -Symbol 9 R1 cap. Symbol
4 NET Symbol 10 R2 cap. Symbol
5 Battery Symbol 11 Samples Lack
6 M+ Symbol Input Unit Weight Lack
Weight Unit Weight
COUNT
1
2
3
4
5
6
7
8
9
10
11

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【5】OPERATION
5.1 TURN ON/OFF
ON：Press 【ON/OFF】key to display the maximum capacity
and software version number on screen, do self-inspection,
then enter in weighing interface.
OFF：Press【ON/OFF】key to turn off scale directly.
5.2 COUNTING MODE
There are three display windows in SCT series scale, in
which weight, unit weight and count are displayed
respectively .
5.3 AVERAGE UNIT WEIGHT SETTING
If average unit weight was not set, “0” will be displayed in
unit weight and count screens.
Sampling：
1. Put some samples on the pan.
2. Input the number of samples by numeric keyboard, and the
input number are displayed on unit weight screen .
3. Press【SMPL】key to display the unit weight value on unit
weight screen and the sampling value on count screen.

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4. The set average unit weight and number are displayed on
the screens.
Sampling After Tare:
1. Put a container on the pan
2. Press【TARE】key to display “0” on weight screen.
and symbol NET is displayed.
3. Put samples inside the container
4. Input the number of samples by numeric keyboard and the
number is displayed on unit weight screen.
5. Press【SMPL】key to display the unit weight value on unit
weight screen and sampling value on count screen.
Input a known average unit weight:
1. A known unit weight is input, then press【UWS】key to
display “ unit weight value” on unit weight screen.
2. Put entire objects on the pan
3. Count and get the result

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5.4 ACCUMULATED MODE
Perform accumulation function by pressing 【M+/HI】key,
and accumulative operation can be performed at most 10
times as well as rechecking or print every time.
Notice: The accumulative operation can only be performed
when the stable symbol appears, then M+ symbol will be
displayed after performing accumulative operation.
1. Sampling and count according to the item 5.3
2. Press 【M+/HI】key to display “ current accumulated
times” for short time on unit weight screen, and one
second later, automatically return in counting interface.
3. The multiple accumulative operation can be performed by
the step 2
5.5 REDISPLAY FUNCTION
The redisplay function can be used to check accumulated
results and to examine accumulated messages time by time.
After performing redisplay operation, symbol MR will be
displayed.
1. One or more times accumulative operation can be
performed according to item 5.4

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2. Press 【MR/LO 】key to display “weighing value of
accumulative total” on the weight screen, “MR-ALL (times
of accumulative total)” on the unit weight screen, “the
number of accumulative total” on count screen. Press
the print key to print the number of accumulative total.
3. Press continuously【ZERO】key to examine each message
of 10 times accumulated results in descending order.
4. Press continuously【TARE】key to examine each message
of 10 times accumulated results in ascending order.
5. Press【RETURN】key to return in counting interface.
5.6 CLEAR ACCUMULATION FUNCTION
Clear Accumulation Function can be used to clear the
accumulated results and the accumulated value each time.
symbol MC will be displayed after clearing accumulation.
1. One or more times accumulated operation can be
performed according to item 5.4
2. Press 【MC 】key to display “weighing value of
accumulative total” on weight screen, “MR-ALL(times of
accumulative total)” on unit weight screen, “the number of
accumulative total” on count screen. Press 【MC】key

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again to clear all the accumulated messages and cancel
accumulation operation.
3. Press continuously 【ZERO】key to examine each message
of 10 times accumulated results in descending order and
press 【MC 】key to clear the current accumulated
message.
4. Press continuously【TARE】key to examine each message
of 10 times accumulated results in ascending order and
press【MC】key to clear the current accumulated results.
5. Press【RETURN】key to return in counting interface.
5.7 CHECK WEIGHT
Check Weight mode and check weight alarm range function
can be set under function setting mode. The setting
instruction are shown in the chapter of function setting.
Notice: the operation can only be performed when LO is less
than HI and more than 9d.
1. In counting interface, press【CK】key to display “check
weight alarm range” on weight screen, “unit weight value”
on unit weight screen, “LIMIT” on count screen.
2. Press 【MR/LO】key to display “check weight alarm
range” on weight screen, “lower limit weight” on unit

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weight screen, “LO” on count screen. Change the lower
limit weight by numeric keyboard, press 【SMPL】key to
confirm the lower limit weight.
3. Press 【M+/HI】key to display “check weight alarm
range” on weight screen, “upper limit weight” on unit
weight screen, “HI” on count screen. Change the
upper-limit weight by numeric keyboard, press【SMPL】
key to confirm the upper limit weight.
4. Press【RETURN】key to return in counting interface.
5. Press 【CK】key and press【RSMPL】key again to open
check weight function.
6. Press 【CK】key and press【RETURN】key again to close
check weight function.
5.8 CHECK COUNT
Check Count mode and check count alarm range mode can
be set under function setting. The setting instruction is
shown in the chapter of function settings.
Notice: the operation can only be performed when LO is less
than HI, integer number and more than 9d

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1. In counting interface, press【CK】key to display “check
count alarm range” on weight screen, “ unit weight” on unit
weight screen, “LIMIT” on count screen.
2. Press 【MR/LO】key to display “check count alarm range”
on weight screen, “lower-limit count” on unit weight screen,
“LO” on count screen. Change the lower-limit count by
numeric keyboard, press 【SMPL 】key to confirm the
lower-limit count.
3. Press【M+/HI】key to display “check count alarm range” on
weight screen, “upper-limit count” on unit weight screen,
“HI” on count screen. Change the upper-limit count by
numeric keyboard, press【SMPL】key to confirm upper-limit
count.
4. Press【RETURN】key to return in counting interface.
5. Press【CK】key and press【RSMPL】key again to open the
check count function.
6. Press【CK】key and press【RETURN】key again to close the
check count function.

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5.9 SINGLE POINT CALIBRATION (unapproved）
Single Point Calibration can be used to calibrate the deviation
of gravity when the scale is used at first or calibrate the scale
when it is inaccuracy.
Notice: please calibrate the scale in working condition.
1. In the condition of power off, hold on 【SMPL】key and
press【ON/OFF】key to enter in function setting and
display “set” on weight screen , “0” on unit weight screen.
2. Input “1139” by pressing numeric keys and press【SMPL】
key to display “CAL” on weight screen, “1Point” on unit
weight screen, “C-ZEro” on count screen.
3. Confirm no load on the pan and press【TARE】key to
perform single point calibration ,display “value of weight
to load” on count screen.
4. If“ value of weight to load” need be changed, respectively
press【TARE】【ZERO】keys to change the value of weight
to load.
5. Put required weight on the pan for 3-5 seconds and press
【SMPL】key to display “pass”, then take down the weight,
press【SMPL】key again to return in function setting
interface.

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6. Press【RETURN 】key to count backwards to return in
weighing interface.
5.10 UNIT SETTING（unapproved）
In general, the units need not reset because they were
already set before delivery. If setting need, the steps are
shown as the followings, units –g.kg,1b,oz
Notice: The units kg and g are only allowed by rules to be
legal measure unit.
1. In the condition of power off, hold on【SMPL】key and press
【ON/OFF】key to enter in function setting, display “set”
on weight screen and “0” on unit weight screen.
2. Input“1132” by numeric key, and press【SMPL】key to
display “UNIT” on weight screen, “1132” on unit weight
screen, “Unit” on count screen.
3. Press【1】key to change the units and select required unit,
press【SMPL】key to return in function setting interface.
4. Press【RETURN】key to count backwards again to return in
weighing interface.

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5.11 MINIMUM ZERO DISPALY SETTING
Minimum Zero Display need not be reset in general and was
set before delivery, if need, the steps are shown as the
followings:
Notice: Minimum Zero Display “0” is only allowed to be set on
rules.
1. In the condition of power off, hold on【SMPL】key and press
【ON/OFF】key to open function setting ,display “SET” on
weight screen and “0” on unit weight screen.
2. Input“1136” by numeric keys and press【SMPL】key to
display “Auto-Z” on weight screen, “1136” on unit weight
screen, “Minimum Zero Display” on count screen.
3. Press【1】key to change the different minimum zero display
(0-1-2-3), and select the required one, then press【SMPL】
key to return in function setting interface.
4. Press【RETURN 】key to count backwards, and return in
weighing interface.
5.12 LINEAR CALIBRATION（unapproved）
There are three portions for linear calibration in the range of
scale capacity. The incorrect linear calibration method will
make errors so that the measured value will be influenced

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each time. Therefore, the linear calibration done by user are
not suggested. The linear calibration was done before
delivery.
Notice: please calibrate the scale in working condition.
1. In the condition of power off, hold on【TARE】key and press
【ON/OFF】key to enter in linear calibration interface, and
display “CAL” on weight screen, “LinE” on unit weight
screen, “C-ZEro” on count screen.
2. Confirm no load on the pan, press【TARE】key to set zero
point calibration, display “1/3 maximum capacity” on count
screen.
3. Put the required weights on the pan for 3-5 seconds, press
【TARE】key to enter in next portion linear calibration
interface, display “2/3 maximum capacity” on count screen.
4. Put the required weights on the pan for 3-5 seconds, press
【TARE】key to enter in next linear calibration interface,
display “3/3 maximum capacity” on count screen.
5. Put the required weight on the pan for 3-5 seconds, press
【TARE】key to display “PASS” on count screen.
6. Press【TARE】key to count backwards to return in weighing
interface.

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【6】FUNCTION SETTING
In the condition of power off, hold on【ZERO】key and press
【ON/OFF】key to enter in function setting interface and
display “SCALE” on weight screen, “FunC” on unit weight
screen, “SET” on count screen.
**********************************************************
6.0 BACKLIGHT SETTING
Press【0】key to display “FunC0” on weight screen, “LiGh” on
unit weight screen, “backlight type” on count screen. Press【0】
key to change backlight type.
“OFF”：No Backlight
“ON”：Backlight is bright
“Auto”: Automatic Backlight（No load, no backlight，as load
greater than 9d，backlight is bright）
6.1 ANTI-VIBRATION SETTING 3
Press【1】key to display “FunC1” on weight screen, “FiLt”
on unit weight screen, “Anti-Vibration Strength Value” on
count screen. Press 【1】 key to change (1-5）anti-vibration
level. The bigger the number is, the more anti-vibration it
is.