Yousheng JCS-B SERIES User manual
ELECTRONIC WEIGHING SCALE
lJCS-B SERIES
Operation Manual
CONTENTS
.
..
.Specification:
………………………………………
. Keyboard instruction:………………………………..
. Operation:……………………………………………..
IV. Alarm indication:……………………………………….
V. RS232 transmission method (optional):………………….
. Specification:
lRechargeable accumulator inside, you can use the scale during recharging.
lAuto zero-setting when switch on the scale.
lAuto zero-tracing.
lSwitch among weighing, counting, percentum. Function of choosing Weight range.
lPower supply: AC 220V (±10%) / 50 Hz, 110V/60HZ, DC 6V / 4Ah (Rechargeable
accumulator inside).
lWorking temperature range: 0 ~ +40 /
lRelative humidity: 85 % RH
. Keyboard instruction:
1. Cali.
To Calibrate the scale when the scale is moved to a different place.
2. Model
To choose different function model: Weighing, Counting, percentum.
3. Unit
To choose different unit: kg, lb.
4. Set
To choose high and low limits range in weighing model.
To sample the weight in counting and percentum model.
5. Zero
To make the display zero when there’s nothing on the platform but the
display is not zero. Press this key continuously for 2-4 second, the backlight will be
switched on or off.
6. TareTo delete the tare.
7. To input number.
8. EnterTo make sure.
. Operation:
The scale must to be placed on the stable and flat surface, adjust its four screws carrier pole
to horizontal, if demand, put the special plate, then switch on the power. The scale cannot be used
for a long time under tare state or the function of zero tracing will disappear and the zero will
move.
The scale will go into the weighing model after the beginning display. The signals of “Zero”
and “kg” set. You may pressModel
to choose the three model: weighing, counting, percentum
circularly.
Backlight on/off: Press Zero
key continuously for 2-4 second, the backlight will be
switched on or off.
Weighing model
Choosing Unit Function: PressUnit
to choose the unit between “kg” and “lb”. The
corresponding signal sets on display.
Tare Function:
Put the container on the platform. PressTare
to make the weight window display “Zero” after
the weight is stable. When the “Tare” signal sets, the weight displays is Net Weight. Remove the
weight, the weight window displays negative. PressTare
again, the weight window displays
“Zero”. The “Tare” signal disappears.
Zero Function: You may pressZero
to make display zero when the zero moved when in
use.(Zero range: <=4%FS, it is invalid under tare state.)
SettingAlarm Function:
1. High limit setting--PressSet
to display the set weight high limit and the signal “-HH-”
circularly. PressEnter
to make sure and set the low limit. Press
to set the number. In the
process of inputting the number, you may press
to add 1 on the recent digit. PressEnter
to make sure of the recent digit and set the next digit. If the digit is the last one you may press
Enter
to set the low limit.
2. Low limit setting--It will display the set weight low limit and the signal “-LL-” circularly when
you begin to set it. The operation is the same as setting high limit. It will go into the alarm method
setting after the low limit setting finished.
3. Alarm method setting—It means in the range alarm when the scale displays “-IN-”. It means out
of the range alarm when the scale displays “-OUT-”. It means no alarm when the scale displays
“-NO-”. You may press
to switch. PressEnterto confirm.
PressSetto exit from the setting state when in the process of setting. The set value is invalid.
Counting model
PressSet
to sample weight in the counting model. It displays “SAP X” (X is the sample number).
1.Press
to choose samples number from 10, 20, 50,100 and 200. PressEnter
EnterEnter
Enter
to make sure.
2.The weight window displays “LOAD-C” after the sample number is chosen. Put enough number
of samples then pressEnter
EnterEnter
Enter
to finish sample.
3.There are two instance of unit weight lacking:
a. When the weight window displays “-LAC-”, it means the unit weight of sample is less than
80% of division. You still can count but the counting may be inaccurate. The signal will
disappear after about 3 seconds.
b. When the weight window displays “-CSL-”, it means the unit weight of sample is not
enough at all. Please pressSet
SetSet
Set
to re-sample. PressEnter
EnterEnter
Enter
to exit back to the counting
model.
PressSet
SetSet
Set
to exit from the sample state in the process of sample.
Percentum model
1.PressSet
in the percentum state to display “LOAD-P”. There are two ways to sample:
a. Put enough samples on the platform then pressEnter
to finish sample.
b. PressUnit
then the scale displays “000000”. Press
andEnter
EnterEnter
Enter
to input the weight
value.
2.When the sample weighed less than 0.1% FS., the weight window displays “-CSL-”. It means
the sample is not enough. You should re-sample. PressSet
SetSet
Set
to re-sample. PressEnter
EnterEnter
Enter
to exit
back to the weighing model.
PressSet
SetSet
Set
to exit from the sample state in the process of sample.
Calibration
Keep pressingCali.
Cali.Cali.
Cali.
for about 4 seconds. Calibrate after the weight window displays “CAL.”.
There are two ways to calibrate:
1. Full range load: Put enough weight on the platform according to the full scale. PressEnter
EnterEnter
Enter
to make sure. Calibration finished.
2. Random load:
a. PressSet
SetSet
Set
, the weight window displays the weight calibrated last time.
b. Press
andEnter
EnterEnter
Enter
to input the weight you want to load. Then load the corresponding
weight. PressEnter
EnterEnter
Enter
to make sure. Calibration finished.
PressModel
ModelModel
Model
to exit from the calibration state in the process of calibrating.
Note:
The high limit and low limit set in the weighing model are saved in the scale.
Different unit corresponding to different alarm range and method. The value inputted
by pressing
cannot be more than the full scale.
IV. Alarm indication:
1. The weight window displays “--OF--” with continuously alarm sound when the weight
over 100%FS+9d. If the ADC overflows, the weight window displays “—Adc—”with
continuously alarm sound. For these instances, the weight should be taken away.
2. If the voltage of the accumulator is low, the weight window displays “—Lo—” while the
weight is zero (The weight display will recover to normal when it is loaded ). Under this
condition, you can use the scale in a short time, but you should plug in the AC plug as
soon as possible to recharge the accumulator.
3. The weight window displays “HHHH” or “LLLL” when the zero weight is higher or lower
than the permitted range.
4. When you switch on the scale. The weight window will display “UNSTA” if the scale is
not stable. It maybe because of the platform’s intensity is too low or the platform is shaken
strongly.
You may strengthen the platform or avoid the shake.
5. If it display “-SYS-” when you switch on the scale please re-calibrate or send it to repair.
If it display –Set--”, it means the alarm setting is wrong, please reset the alarm value.
V.RS232 transmission method (optional):
1. RS232 setting
Press Mode
ModeMode
Model
ll
l
and Tarekey when self-testing, loosen two key when hear the buzzer sound
and enter the RS232 transmission setting.
1Set transmission method
Press thesetkey to choose the method of:“Stb” = output when stable, “Etb“ = output once
whenEnterkey is pressed, “SEr” = series (continuous output), or “CLOSE” = output
disabled. Then press
key to select method or press Enterto confirm and set the next
parameter.
(The default mode isclose.)
(2) Baud rate Setting
Press
key to select the desired baud rate among 1200240048009600
, then press Enterto confirm the selection and exit setting.
The default baud ratio is 2400.
2. RS232 interface
(1) Frame format
The scale have a standard RS232 UART signal, Each data frames has 10bits.The detail
information of frames is as follows
bit1 bit2 bit3 bit 4 bit 5 bit 6 bit 7 bit 8 bit 9 bit 10
Press Enterto send
Stb Etb SEr CLOSE
print once when stable
Transmit continuously Disable the transmit
9600
4800
24
00
1200
bit1start bit
bit2~bit9data bit
bit10stop bit
(2)Data format
Every message include 6 bytes, they are following:
No. 1: D0~D7 —— 0FFHMessage Flag
No. 2: D0~D2 —— Decimal point0-5
D3~D4 —— Current mode: 00 - weighting; 01- counting; 10 - percentum;
D5 —— 1 means weight is negative, otherwise is positive
D6 —— 1 means weight is stable, otherwise is unstable
D7 —— 1 means weight is overflow, otherwise is normal
No. 3: D0~D7 —— BCD1LSB
No. 4: D0~D7 —— BCD2MSB
No. 5: D0~D7 —— BCD3HSB
No. 6: D0~D7 —— Unit for weight: 1 - lb; 0 - Kg;
Table of contents
