BTEK WorldWEIGH BWS Series User manual

V1.09p
BWS Series
Indicator
Technical Manual
800-000316

CONTENTS
1. SPECIFICATION... 2
2. INTRODUCTION... 3
C arging...3
3. INSTALLATION. 4
Installation.. 4
Wiring....4
4. KEYS DESCRIPTION... 6
Key Board... 6
Secondary functions of t e keys.8
5. OPERATION 8
5.1. Basic Operation... ...8
1. Power On /Off..8
2. Zero...8
3. Tare...8
4. Select Unit8
5.2. C eck Weig ing..9
5.2.1. Set Limits......9
5.2.2. Set C eck Weig ing...9
5.3. Accumulation10
5.3.1. Memory Recall.....10
5.3.2. Memory Clear...10
5.3.3. Automatic Accumulation...11
5.4. Parts Counting.....11
5.5. Animal Weig ing..12
5.6. Key Board Lock12
5.7. Set Auto Power Off..13
5.8. Set Back Lig t..13
6. PARAMETERS.14
7. CALIBRATION..18
8. RS-232 OUTPUT19
8.1. Specifications.19
8.2. Connecter19
RS-232 Output19
8.3. Continuous output protocol.19
9. DRAWING20
9.1. BWS Drawing20
9.2. BWS Parts List..21
10. ERROR CODES..22

BWS Series Indicator Tec nical Manual
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PRECAUTIONS
WARNING
DISCONNECT ALL POWER TO THIS UNIT
BEFORE INSTALLING, CLEANING, OR
SERVICING. FAILURE TO DO SO COULD
RESULT IN BODIL HARM OR DAMAGE TO
THE UNIT.
CAUTION
• Only qualified Service personal to service this instrument
• Before connecting or disconnecting any components, Disconnect
power.
• Failure to observe these precautions could cause bodily harm or
damage or destruction of the equipment.
• T e BWS weig ing indicator is a precision electronic
instrument, andle wit care.
• Do not install in direct sunlig t.
• Verify t e local voltage and receptacle type are correct for
t e scale.
• Pluggable equipment must be installed near an easily
accessible socket outlet.
• Avoid unstable power sources. Do not use near large
consumers of electricity suc as welding equipment or large
motors.
• Avoid sudden temperature c anges, vibration, wind and
water.
• Avoid eavy RF noise.
• Avoid ig stactic areas.
• Keep t e indicator clean.

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1. SPECIFICATION
Model BWS
Display 52mm LCD/ 2” LCD
Housing Stainless Steel
Operating Temperature 0°C - 40°C / 14°F - 104°F
Resolution 1/30,000 (Non Approved) 1/6000 (NTEP Approved)
Key Pad 7 Keys
Power Battery (6V/4A ) estimated run time on fully c arged
battery 50 ours
Calibration Automatic External
Interface 1 RS-232 Output
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 second typically

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2. INTRODUCTION
 T e BWS series weig ing indicator amplifies signals from a load cell, t en
converts it to digital data and displays it as a mass value number
 It is suitable for general weig ing or more specialized applications suc as
c eck weig ing, animal weig ing and accumulation applications
 Can be connected to a printer, PC, or scoreboard
 Large LCD wit w ite LED back lig t displays
Charging
• To c arge t e battery, plug cord into power outlet. T e scale does not need
to be turned on, to c arge.
• T e battery estimated c arge time to full capacity is 12 ours.
• An LED to indicate t e status of battery c arge is located on t e left side of
t e Display. W en t e scale is plugged into a power source t e internal
battery will be rec arging. If t e LED is green, t e battery as a full c arge.
If it is red, t e battery is nearly disc arged and if yellow, t e battery is
being c arged.
• Verify t at t e AC power outlet is properly protected.
Note: Please charge the battery before using the scale for the first time.

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3. INSTALLATION
Installation
• Place t e Indicator on a table or connect to t e supplied mounting bracket.
• Connect t e load cell cable to t e indicator Bd9 load cell connecter.
• Plug equipment into an easily accessible outlet wit a protective ground/
eart contact.
• Turn BWS on wit use of t e On/Off key. If you want to turn off, press t is
key again.
• Display will start self c ecking/ followed by number of calibrations/ number
of option c anges/ t en error 4/ T en enter into main weig ing screen.
• Warm-up time of 15 minutes elps stabilizes t e measured values after
switc ing on.
• Calibrate wit exact calibration weig ts, a minimum 1/3 of t e scale
capacity s ould be used for calibration. For calibration instructions see
details under parameters.
Wiring
Supplied 18 foot cable (to load cells) Self made cable (from BWS)
SIG- Green
SIG+ W ite
EX- Black
EX+ Blue
SEN- Yellow
SEN+ Red
S ield Grey
SEN and EX needs to be tied
Toget er if no sense wires..
Terminal strip and Cut pigtail wiring on t e next page
Pins to DB9
1 SIG-
2 SIG+
3 EX+
4 EX-
5 SEN+
6 Connect to 7
7 Connect to 6
8 SEN-
9 S ield

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Wiring
Cut Pigtail
Wiring
Terminal
Strip
Pins to DB9
Green SIG-
W ite SIG+
Brown S ield
Black EX-
Grey SEN-
S eild Sen+
Blue Ex+
Yellow I/O gnd (Must connect to red)
Red I/O (must be connected to Yellow)

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4. KE S DESCRIPTION
Keyboard
Keys Description
Power turn ON/OFF
Zero Display
To perform a tare function, subtracts weig t
Accumulator key, current values will store to t e memory, to
send t e data to printer or PC
S ift between Gross / Net Weig t
Counting
To c ange t e unit of measure

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Secondary functions of t e keys (Setup)
(See Parameter section 6)
Secondary Functions Keys
To confirm t e selected menu
To c ange t e menu and active digit
To move t e active digit to rig t
To move t e active digit to left
To enter in to t e menu
Escape from t e menu to normal operation