TScale BW Series User manual

WEIGHING INDICATOR
TECHNICAL manual

BW / CW/VW/BWS Series Indicator Technical Manual
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Manufacturer
Taiwan Scales Mfg. Co., Ltd
Model
BW/BWS/VW/CW
Attestation No
06061503-A
EMC Directive
89/336/EEC
Applicable Standards
EN 55022: 1998 / A1:2000 / A2-2003 (Class B)
EN 55024: 1998 / A1:2001/ A2:2003
EN61000-3-2: 2000,
EN 61000-3-3: 1995 / A1: 2001
Note: The declaration is only valid if the non-automatic weighing instrument was
verified by the manufacturer or with a certificate of conformity issued by a notified
body.
Taiwan Scale Mfg. Co., Ltd.
282, Sec.3, Hoping W. Rd.
Taipei,
Taiwan
TEL:[phone]
FAX:[phone]
e-mail: [email protected]
W & P Scales Mfg. (Kunshan) Co., Ltd.
No. 99 Shunchang Road
Zhoushi, Kunshan
Jiangsu
China
TEL:[phone]
FAX:[phone]
e-mail: [email protected]
Copyright by Taiwan Scale Mfg. Co., Ltd. All rights reserved. No part of this
publication may be reprinted or translated in any form or by any means without
the prior permission of Taiwan scale.
Taiwan Scale reserves the right to make changes to the technology, features,
specifications and design of the equipment without notice.
All information contained within this publication was to the best of our knowledge
timely, complete and accurate when issued. However, we are not responsible for
misimpressions which may result form the reading of this material.
Visit our Website at: www.taiwanscale.com
Declaration of Conformity

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CONTENTS
1. SPECIFICATION..…………………………………………………………………. 3
2. INTRODUCTION…………………………………………………………………... 4
3. INSTALLATION……………………………………………………………………. 5
Precautions …………………………………………………………………………5
Parts………………………………………………………………………………… 6
Installation………………………………………………………………………….. 6
Connect Adaptor and Charging…………………………………………………...7
4. KEYS DESCRIPTION……………………………………………………………... 8
Key Board…………………………………………………………………………... 8
Secondary functions of the keys…………………………………………………9
Display………………………………………………………………………………9
5. OPERATION……………………………………………………………………… 10
Basic Operation…………………………………………………………... ...10
1. Power On /Off………………..………………………………………………10
2. Zero…………………………………………………………………………...10
3. Tare…………………………………………………………………………...10
4. Select Unit……………………………………………………………………10
Check Weighing……………………………………………………………..11
S e t L i m i t s… ...……………………………………………..………….11
S e t C h e c k W e i g hi n g… … … . . … … …… … …… … … … … …… … … . 1 1
Accumulation…………………………………………………………………1 2
M e m o r y R ec a l l … …… … … . .. … … … … …… … … . … … … … … … …. 1 2
M e m o r y C l e a r …… … … … … … … …… … … … … … … …… … … … . . . 1 2
Automatically A c c u m u l at i o n … …… … … … … … … …… … … … …. . . 1 2
Parts Counting...……………………………………………………………..13
Animal Weighing……………………………………………………………..13
Key Board Lock………………………………………………………………14
Set Auto Power Off…………………………………………………………..14
Set Back Light………………………………………………………………..14
6. PARAMETERS…………………………………………………………………….16
7. CALIBRATION……………………………………………………………………..18
8. RS-232 OUTPUT…………………………………………………………………19
Specifications……………………….………………………………………19
Connecter……………………………………………………………………19
RS-232 Output………………………………………………………………19
Check weighing Output…………………………………………………….19
Continues output protocol………………………………………………….19
9. ERROR CODE…………………………………………………………………21
10.DRAWING…………………………………………………………………………22
BW/CW/VW Drawing………………..……………………………………………22
BW/CW/VW Parts List…………………………………………………………….23
BWS Drawing………………………………………………………………24
BWS Parts List……………………………………………………………..25

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1. SPECIFICATION
VW CW
Model
BW/VW/CW
BW-E
BWS
BWS-E
Display
52mm LCD
1.2” LED
52mm LCD
1.2” LED
Housing
ABS Plastic
SST
Operating Temperature
-10°C - 40°C / 14°F - 104°F
Resolution
1/6000 (OIML Approved)
Key Pad
7 Keys
Power
AC Adaptor (12V/500mA)/ Battery (6V/4Ah)
Calibration
Automatic External
Interface
RS-232 Output Optional
Load cell drive Voltage
Max: 5V/150mA
Load Cells
Up to 4 load cell
ADC
Sigma Delta
ADC Update
≤1/10 second
Stabilization Time
One seconds typical

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2. INTRODUCTION
The BW/CW/VW/BWS series weighing indicator that amplifies signals
from a load cell, converts it to digital data and displays it as a mass value.
It is suitable for general weighing or more specialized applications such as
check weighing, animal weighing and accumulation applications.
It can connect the indicator to a printer or a PC.
Large LCD with white LED back light or LED displays

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3. INSTALLATION
Precautions
The weighing indicator is a precision electronic instrument,
handle it carefully.
Do not install the scale in direct sunlight.
Verify the local voltage and receptacle type are correct for
the scale.
Only use original adaptor, other could cause damage to the
scale.
Pluggable equipment must be installed near an easily
accessible socket outlet.
Avoid unstable power sources. Do not use near large users
of electricity such as welding equipment or large motors.
Avoid sudden temperature changes, vibration, wind and
water.
Avoid heavy RF noise.
Keep the indicator clean.
Parts Description

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Installation
Place the Indicator on a table or connect with proper stand.
Connect the plat form load cell cable in to the indicator load cell connecter.
Load cell connecter is locating back side of the indicator.
Connect the adaptor pin in to the indicator adaptor jack.
Adaptor jack is locating, back side of the indicator.
Adaptor connects into your AC power socket.
Pluggable equipment must be installed near an easily accessible socket
outlet with a protective ground/ earth contact.
Turn on the On/Off key. If you want to turn off, press the key again.
Display will be show the scale capacity and will be starting self checking.
After self checking, display will be come to normal weighing mode.
Warm-up time of 15 minutes stabilizes the measured values after
switching on.
Calibrate with exact calibration weights, minimum 1/3 of the scale capacity
want to use for calibration. For calibration see details in parameter.
Then you can start your operation
Load cell connections
Connect the load cell cables to the terminal as shown below.
It can connect four 350 ohm load cells.
The load cell drive voltage is 5V DC ±5% between
Excitation + and Excitation -.
Description Pin
Signal + 1
Excitation + 5
Signal –2
Excitation –4
Shield 3

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Connect Adaptor and Charging
To charge the battery insert the adaptor pin to jack. Adaptor simply plug into
the mains power. The scale no needs to be turned on.
The battery should be charged for 12 hours for full capacity.
Left down side of the keyboard there is an LED to indicate the status of
battery charging. When the scale is plugged into the mains power the
internal battery will be recharged. If the LED is green, the battery has a full
charge. If it is red, the battery is nearly discharged and if yellow, the
battery is being charged.
Do not use any other type of power adaptor than the one supplied with the
scale.
Verify that the AC power socket outlet is properly protected.
Note: Please charge the battery before using the scale for the first time.

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4. KEYS DESCRIPTION
Key Board
Keys
Description
Power turn ON/OFF
Set the Zero Display
To perform a tare function, Subtracts weights.
Memory recall key, show the stored values from the
memory
Accumulator key, current values will store to the memory
To send the data to printer or PC
Shift to Gross / Net Weight. To change Unit hold three
seconds.

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Secondary functions of the keys
Function
Keys
To confirm the selected menu
To change the menu and active digit
To move the active digit to right
To move the active digit to left
To enter in to the menu
Escape from the menu to normal operation.
Display
Battery low
Check
Weighing
Weighing unit

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5. OPERATION
Initial Start-up
Warm-up time of 15 minutes stabilizes the measured values after switching on.
5.1. Basic Operation
1. Power On/Off:
Switch on the balance by pressing on/ off key.
The display is switched on and the test is started and if want to switched
off, press again the key.
2. Zero
Environmental conditions can lead to the balance exactly zero in spite of
the platform not taking any strain. However, you can set the display of
your balance to zero any time by pressing key and therefore ensure
that the weighing starts at zero.
3. Tare
The weight of any container can be tared by pressing button so that
with subsequent weighing the net weight of the object being weighed is
always displayed.
Load weight on the platform.
Press key. Zero is displayed, and tare is subtracted.
Remove weight on the platform. Tared weight is displayed. It can set only
one tare value. It will be shown with a minus value.
Press G/N to change between gross weight and net weight.
To clear the tare value, remove the load and press key. Zero is
displayed, tare weight is cleared.
4. Select Unit
Press and hold three seconds key, it can change to unit.

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5.2. Check Weighing
It can set an upper or lower limit when weighing with the limits range.
During the limit controls dividing the unit will indicate whether a value
upper or lower limits with an alarm sound .
5.2.1. Set Limits
Press and key together, display will be show set h.
Press key to select set h or set l
Press key to confirm, display will show 00000 and will blink the last
digit.
Enter the high limit value by using and keys to change the
active digits and press key to increment the value.
Press key to confirm, display will show set l
Enter the high limit value by using and keys to change the
active digits and press key to increment the value.
Press key to confirm.
To escape from the settings press key.
5.2.2. Set Check Weighing
Press and key together, display will be show set h.
Press key to select display beep.
Press key to confirm, display will be shown no or ok or ng
Check mode no : No beep sound in the limits. Function turned off.
Check mode ok : When the weight is between the limits. OK will shown
and beeper will be sounded.

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Check mode ng : When the weight is out of the limits, the beeper will be
sounded and OK will shown.
Note: Check weighing available only when weight more than 20d
5.3. Accumulation
The scale can be set to accumulate manually by pressing key. For settings,
see the parameter p 2 Com »mode »pr 2
Before operation scale should be stable and return to zero, accumulation
available only when weight more than 20d
Accumulation Operation
Place the load on the platform.
Press key, when displayed STABLE indication.
Display will be show acc 1 then will be show the total saved value.
These displays will be shown only three seconds.
Remove the weight from the pan.
When display get zero and stable then place the second weight.
It can continue until the memory gets fully or 99 items.
5.3.1 Memory Recall
To recall the memory press key.
Display will be show acc X(X: Total number of accumulation) then will be
show the total saved value. These displays will be shown only three seconds.
5.3.2. Memory Clear
To clear the memory, press and keys together.
Display will be show Acc 0 , all accumulation memory cleared from the memory.
5.3.3. Automatically accumulation.
The scale can be set to accumulate automatically. For settings, see the
parameter p 2 Com »mode » auto

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Automatic Accumulation Operation
Place the load on the platform.
When display gets STABLE indication, display will be show acc 1 then
will be show the total saved value. These displays will be shown only three
seconds.
Remove the weight from the pan.
When display get zero and stable then place the second weight.
It can continue until the memory gets fully or 99 items.
5.4. Parts Counting
To enter the parts counting, press and hold key display will be show p 10
Press to change the parts quantity.
Options: p10 / p 20 / p 50 / p100 /p 200
Parts Counting Operation
Select the parts quantity as per the option
Place the load on the platform
Press key to confirm, display will be shown ---- then will show the
quantity
Then can add goods on the platform, display will update the parts quantiity
automatically
Press key to change normal mode, when in counting mode.
5.5. Animal Weighing
BW/BWS/VW can use for vibrate loads weigh. This function can use for animal
weighing. For settings, see the parameter p 4 oth »anm
Bring the load on the platform, when the load few seconds get stable, the reading
will be locked for few seconds and will be follow beep.
It can add or remove loads also update the weighing locked values.
To enter or exit animal weighing mode, press and key together.
When in animal weighing mode HOLD indicator will be displayed.

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5.6. Keyboard Lock
It can set lock key board, for settings, see the parameter p 4 oth »lock
When the keys are not using with in 10 minutes, the keys will be lock
automatically.
After entering into the lock function, when we press the keys display will be show
k-lok. Then will come to normal display.
If want to unlock and want to use the keys press and hold , and
keys three seconds. Display will be show u lck Then will come to normal
display
5.7. Set auto power off
It can set auto power of the scale, when scale not in use, scale will turn off after
the setting time.
Hold key three seconds display will show setbl
Press key to change Set of and press key to confirm
Press key to change the options.
Set of
Of 0
To set auto off function turn off, for scale always
on
Of 3
Set to turn off three minutes later
Of 5
Set to turn off five minutes later
Of 10
Set to turn off 10 minutes later
Of 3 0
Set to turn off 30 minutes later
After select the auto off option press key to confirm and press
key to escape from the settings.
5.8. Set Back Light
It can set back light when scale in use.
Hold key three seconds display will show setbl
Press key to confirm

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setbl
Bl au
To set auto option. When start to use back light
will be on and when stop the operation back light
also will off.
Bl on
To set always on. After turn on the power, back
light also will be on.
Bl off
To set back light turn off. No back light in the
operations
After select the back light option press key to confirm and press
key to escape from the settings.

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6. PARAMETERS
To set parameter, you should short K2 jumper, then turn on the scale.
Press key during the self checking.
Display will be show pn
Press , and to enter, display will be show po chk
Menu
Sub Menu
Description
P 0 chk
Set H
Set high limits for check weighing
Set lo
Set low limits for check weighing
beep
No
No beep for check weighing
Ok
Beep, when check weighing between the
limits
ng
Beep, when check weighing out of the limits
P 1 com
Mode
This option is used to set accumulation
and RS-232 communication
Options:
Cont : data send continues
St 1 : Send data one time, when stable.
St c : Send data continuously, when
stable
P r1 : Send data one time, when press
print
Key (in printer mode)
Pr 2 : Send data to print and
accumulation,
When press .key
Auto : Auto accumulate and auto print
mode.
When weight stable and return to
zero.
Ask : Ask mode,
Command R: read data
Command T: Tare
Command Z: Zero
Wireles: Wireless mode (communication
through wireless)
Baud
To set the baud rate.
Options:
600 /1200 /2400 /4800 /9600

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Pr
To set the parity
Options:
7 e1 /7 o1 /8 n1
Ptype
To set printer model
Options:
Tpu p : set the Tscale printer tpup
Lp50 : Set the Tscale printer LP-50
P 2 cal
Deci
To set to use decimal
Options;
0 /0.0 /0.00 /0.000
Dual
off
R1 inc
To select the scale division.
Options:
1 /2 /5 /10 /20 /50 /100 /
200
R1 cap
To set the scale capacity
On
R1 inc
To select the scale division.
Options:
1 /2 /5 /10 /20 /50 /100 /
200
R1 cap
To set the scale capacity.
Then press to set R2inc and R2
cap
Cal
To set non linear calibration
Count
Showing scale internal counts
gra
To set local gravity
P4 oth
Lock
To set keypad lock
Options: on /off
anm
To set animal mode.
Options: on /off
Note: Du al –This function is used to dual interval.
On: Dual interval enables / Off: Dual interval disable.
Then can set Capacity and Division

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7. CALIBRATION
To set calibration, turn on the scale.
Press key during the self checking.
Display will be show pn
Press , and to enter, display will be show po chk
Press until display will be show p 2 cal
Press key to confirm and press to select cal
Press key to confirm
Calibration Cal
Press key to enter calibration, display will be show unld
Remove all the weight from the platform.
When indicator get stable, press key to confirm.
Display will be show the last calibration weight. If want to change the
calibration weight value, press and keys to change the active
digits and press key to increment the value.
When the calibration value is correct, press key to confirm.
Display will be show load
Place the calibration weight on the platform.
When indicator get stable, press key to confirm.
Display will com to normal weighing mode

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-QTY UNIT-
8. RS-232 OUTPUT
8.1. Specifications:
RS-232 output of weighing data
Code : ASCII
Data bits : 8 data bits
Parity :No Parity
Baud rate : 600bps to 9600bps selectable
8.2. Connecter:
RS-232 Output
Pin 2: Input
Pin 3: Out put
Pin 5: Signal Ground
Check Weighing Output
Pin 1 : VB
Pin 4: Vcc 5v (Output)
Pin 5: Com (Ground)
Pin 6: Ok (Output)
Pin 7: Low (Output)
Pin 8: Hi (Output)
Pin 9: Beep (Output)
8. 3. Continuously output protocol
Con1: Weighing mode
k
g
CR
LF
-HEADER1-- - HEADER2- ---WEIGHT DATA --
Counting mode
P
C
S
p
c
s
CR
LF
HEADER1: ST=STABLE US=UNSTABLE
HEADER2: NT=NET GS=GROSS
-WEIGHT UNIT-
TERMINATOR
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