Universal Weight Electronics VGW Series User manual

VGW & VOW Series
Digital Weighing Scale
Operation Manual
Universal Weight Electronics
September 2017 V2

TABLE OF CONTENT
1. BEFORE USE FOR THE FIRST TIME
2. SPECIFICATION
3. PANEL AND KEYBOARD
4. INTERNAL FUNCTIONS
5. INSTRUCTION TO USE
6. DAILY CARE AND MAINTENANCE
APPENDIX:
ERROR CODES
DISPLAY SEGMENT DEFINITION

1. BEFORE USE FOR THE FIRST TIME
●Thank you for purchasing an UWE product, please read this instruction
carefully before start using. You shall find the following items inside the
box:
VGW/VOW scale x 1
Switching power adaptor x 1
Operation manual x 1
If you don’t find all the items as described above, please contact your dealer for
further assistance.
●Place the scale in a stable environment and adjust the adjustable feet to a
level position by referring to the bubble level
●The scale is equipped with rechargeable battery, please charge it until the
charging indicator turns green to ensure the best battery performance
●Always use factory supplied power adaptor for charging purpose, an
unapproved power adaptor may shorten the battery life and further
damages the electronic components
●Warm up the scale for 15 minutes before use for the first time
●Make sure the capacity and division setup on the display when switching
on is the same as the data plate
●Avoid to use the scale when the environment is with strong wind, vibration
and strong magnetic field
●Use it within the recommended temperature range and avoid wet
environment
●Recharge the battery immediately when battery status indicator starts
flashing
●Use damp cloth to clean the scale if necessary, excessive moisture is
prohibited
●When not using, switch off the power and keep the scale in a dry and cool
place

2. SPECIFICATION
3000 DIVISIONS - OIML APPROVED
Model No.
Capacity (Max)
Readability (e)
1500g
1500g
0.5g
3000g
3000g
1g
6000g
6000g
2g
15kg
15kg
5g
30kg
30kg
10g
3000 DIVISIONS DUAL RANGE - OIML APPROVED
Model No.
Capacity (Max)
W1/W2
Readability (e)
e1/e2
3000g
1500g/3000g
0.5g/1g
6000g
3000g/6000g
1g/2g
15kg
6kg/15kg
2g/5g
30kg
15kg/30kg
5g/10g
6000 DIVISIONS - OIML APPROVED
Model No.
Capacity (Max)
Readability (e)
3000g
3000g
0.5g
6000g
6000g
1g
12kg
12kg
2g
30kg
30kg
5g
30,000 DIVISIONS - NON-OIML
Model No.
Capacity (Max)
Readability (e)
3000g
3000g
0.1g
6000g
6000g
0.2g
15kg
15kg
0.5g
30kg
30kg
1g
LCD Digits
VGW: 5 1/2 digits
VOW: 6 digits
Power-on Zero Range
±10% of Max

Zero Range
±2% of Max
Tare Range
Full Range Tare
Platter Size
VGW: 230 x 250mm with Stainless Steel Insert
VOW: 225 x 320mm with Stainless Steel Insert
Power Source
External AC Adaptor: AC100~240V, DC9V/0.6A
Built-in Rechargeable Battery: 6V/4Ah
Operating
Temperature
-10oC / 40 oC (14 oF / 104 oF)
Non-condensed. R.H.≦ 85%
3. PANEL AND KEYBOARD
3.1 PANEL
1. ZERO INDICATOR
It appears when scale is at zero weight status
2. NET INDICATOR
It appears when tare function is engaged and weight shown is the net
weight

3. STABLE INDICATOR
It appears when scale is in equilibrium state
4. W1W2 INDICATOR
This indicates the scale is set with dual range, and the weight is within the
first range Max1/e1 or within the second range Max2/e2
5. AVERAGE FUNCTION
This indicator appears when digital motion filtering function is engaged.
6. WEIGHING UNIT
This indicates the weight unit which the scale is currently measuring:
A metric unit of kg or g can be set.
An imperial unit of lb can be set.
7. M+
This indicator appears when memory contains data.
8. MR
This indicator appears when value shown on the display is the total saved
value.
9. HI-OK-LO INDICATOR
These indicators notify the user the weighing range of the loads which being
placed on platter
10. BATTERY STATUS
This indicates the power level of the rechargeable battery, and should be
charged immediately when the sign starts flashing to prolong the time of
rechargeable battery
11. CHARGING STATUS
Red light indicates AC power is supplied and charging is in process.
Green light indicates charging completed
3.2 KEYBOARD

ON/OFF
Press this key to turn on the scale, or press and hold this key
to turn off the scale
ZERO
Press this key to manually set the display value to zero,
please refer to specification for manual zero range
TARE
Press this key to tare the weight off from the platter
MODE
1. Press this key to switch weighing unit from metric to
imperial(when this unit is enabled) and to piece
counting
2. Press and hold this key to engage sampling function
M+/MC
1. Press this key to save the weighing result to memory
2. Press this key to clear data saved in memory when MR
indicator is on
MR
1. Press this key to recall total accumulated weighing result
from memory
2. Press this key in piece counting mode for sampling
4 INTERNAL SETTINGS
Below table defines all the internal function, and kindly note some functions are
for dealer only. DO NOT try to open the scale or break with the hardware seal
when the unit is metrological approved.
DISPLAY
FUNCTION SETTING
ACCESS CONDITION
F0
Zero tracking speed
Dealer only when LOCKED
F1
1. Analog to digital offset value
2. Function key test
Open
F2
1. LCD segment check and software
version information2. Adjusting
backlight brightness
Open

F3
Scale configuration setup
Dealer only when LOCKED
F4
Auto power off
Open
F5
Transmission Protocol
Open
F6
Digital Motion Filtering
Open
F7
Transmission Mode
Open
F8
Printer selection
Open
F9
Automatic/Continuous tare
Open
F16
Turning on/off real time clock
Open
F17
Time and date setup
Open
F18
Buzzer sound
Open
F19
High resolution verification mode
Dealer only when LOCKED
F20
Manufacturing site gravity value setup
Dealer only when LOCKED
F21
Final destination gravity value setup
Dealer only when LOCKED
F38
Backlight timing
Open
F100
Reset to factory default
Dealer only when LOCKED

4.1 FUNCTION DEFINITION AND SETUP
●Press and hold TARE and press ON/OFF, display shows F1
●Use TARE (next) or MR (previous) to scroll through the internal setting
menu, and press MODE to enter the setting.
●Use ZERO in sub-setting menu to scroll through available options. Press
MODE key to confirm and exit.
●Press ZERO and display will show SAVE. If setting was changed, user can
either press MODE for yes to save the changes made or press ZERO for not
to save the changes.
CAUTION: BEFORE LEAVING THE INTERNAL SETTING, ALL CHANGES MUST BE
SAVED OTHERWISE THE SCALE WILL STILL FUNCTION UNDER THE OLD
SETTING.
Offset Value & Function Key Test (F1)
Under this function scale will show the offset value and be able to check the
function of each key.
LCD Segment Check and Backlight Adjustment (F2)
Under this function all segments and indicators will be in flashing mode as well
as backlight for user to check if function properly.
Press ZERO to adjust the backlight brightness. There are five settings, press
MODE to confirm setting. Backlight brightness also has 5 level selections for
optimal viewing.
Auto Power Off (F4)
Under this function, user can select auto power off timing among 5 minutes, 10
minutes, 15 minutes and 20 minutes or disable the function. There are 5
settings, the numerical digit means the minutes to power off when scale idles.
ALL.on means the Scale will never automatically turn off unless manual
intervention.
5.oFF -> 10.oFF -> 15.oFF -> 15.oFF -> ALL.on

Transmission Protocol (F5)
Under this function, user can select the transmission interface, speed, mode
and format for RS-232 and also the communication protocol.
When display shows F5, press MODE to enter the function
First level selection:
nonE / rS232
Second level selection:
bAUd / ForMt / trAnS / ProtL
Selection under bAud:
2400 / 4800 / 9600 / 19200 / 38400 / 115200bps
Selection under ProtL:
n.8.1 / E.7.1 / o.7.1 / E.8.1
Selection under trAnS:
MAnU / Auto / StrM
Selection under ForMt:
SEr.1 / SEr.2
use MODE key to enter, ZERO to change, MODE key to confirm
Terminology:
nonE: no data output
bAud: baud rate
trAns: transmission type
Auto: automatic transmission
MAnU: manual transmission
rS232: data output through RS-232
ProtL: transmission protocol
ForMt: transmission format
StrM: stream transmission
Digital Motion Filter (F6)
Under this function, user can enable digital motion filtering function if the
weighing environment is unstable. User also can engage animal weighing
function for maximum performance. The scale is equipped with 3 filter speeds:
Filt 0 -> Filt 1 -> Filt 2
Transmission Mode (F7)
StrM: stream mode, data continuous sending when stable (ForMt only has
Ser.1 available)

ST, NT, 100.01kg
ST, NT,- 100.01kg
…………………………….
Manu: manual mode, data sends once when manually pressing keypad (press
M+ to send one data, press MC to clear memory and send total value)
●When format is set at Ser.1-
Press M+ to send single data (as Ser.1 ForMt), and will not print total value.
NOTE:
1. When tare function is not engaged, net weight equals to gross weight, so
RS-232 will transmit data in NET status.
●When format is set at Ser.2-
Press M+ to send single data, press MC to send total value (as Ser.2 format)
S/N WEIGHT UT
1 100.02 kg H ←press M+ to print single data
2 99.01 kg G
3 1210.05 kg H
4 10.12 kg L
…………………………
---------------------------------
Sum 9876.10kg ←press MC to print total value
Auto: automatic mode, data sends once when weighing result stables
●When format is set at Ser.1-
Indicator will automatically send single weighing result when display stables
and over 20e, it does not support to print total value.
ST, NT, 100.01kg
ST, NT,- 100.01kg
US, GS, 1000.01kg
………………………………
●When format is set at Ser.2-
Indicator will automatically send single weighing result when display stables,
press MC to clear memory and print total value (as Ser.2 format)
S/N WEIGHT UT
1 100.02 kg H

2 99.01 kg G
3 1210.05 kg H
4 10.12 kg L
←automatically sends one weighing result when
display stables
S/N WEIGHT UT
1 100.02 kg H
2 99.01 kg G
3 1210.05 kg H
4 10.12 kg L
………………………….
----------------------------------
Sum 9876.10kg ←print total result when MC is pressed
●When Real Time Clock function is enabled
When indicator is set at rtC.on, date and time information will be included in
the RS-232 data stream:
When F7 is set at Ser.1
2015/04/25 10:30:21 ST, NT, 100.01kg
2015/04/25 10:30:39 ST, NT, 210.00kg
When F7 is set at Ser.2
2015/04/25 10:31:21
S/N WEIGHT UT
1 100.02 kg
2 99.01 kg
------------------------------------
Sum 199.03 kg
Printer Selection (F8)
Under this function, user can select the peripheral which the scale will be
connected to.
PC for computer -> tEC for Toshiba TEC printer -> ArGoX for Argox printer -> tSC
for TSC printer -> SH-24 for 24 columns Dot Matrix printer
Auto Tare & Automatic Continuous Tare (F9)
Under this function, user can enable or disable auto tare function of the first
weight, or the consecutive loads place on the platter.

Tr.on (auto tare first weight) -> tr.Cnt (auto tare consecutive loads)-> tr.oFF
(auto tare off)
Turning On/Off Real Time Clock (F16 Optional)
Under this function, user can turn on or off real time clock function.
rtC.on -> rtC.oF
Time and Date Setup (F17)
Use this function to setup year, month and date as well as time in 24 hours
format.
a. display shows Y=XX
b. Press ZERO for increasing and TARE to change flashing digit, and press
MODE to confirm and entering the next setting
c. Display shows M=XX, press ZERO for increasing and TARE to change flashing
digit, and press MODE to confirm and entering the next setting
d. Display shows d=XX, press ZERO for increasing and TARE to change flashing
digit, and press MODE to confirm and entering the next setting
e. Display shows H=XX, press ZERO for increasing and TARE to change flashing
digit, and press MODE to confirm and entering the next setting
f. Display show M=XX, press ZERO for increasing and TARE to change flashing
digit
g. Press MODE to confirm to complete the setting
Buzzer Sound (F18)
Under this function, user can select buzzer sound on or off.
Sd.on -> Sd.oFF
Backlight Timing (F38)
Under this function, user can select when to turn off backlight.
There are 5 settings, bL.on for always on, bL.oFF for always off and bL.X means
the backlight will automatically turn off after X seconds when scale idles.
bL.5 -> bL.10 -> bL.15 -> bL.on -> bL.oFF
5 INSTRUCTION TO USE
VGW/VOW series is easy to use and user friendly. Everyone can start using the
scale by following the below steps:
a. The scale is placed on a solid surface
b. Use adjustable feet and referring to the bubble level to make sure scale is in
a level position

c. Power on the scale and wait for the counting down
d. Scale is in zero weight status and display showing zero indicator
e. If zero indicator is not on, press ZERO to set the display to zero
f. If zero weight status cannot be obtained, change the location and try again
5.1 WEIGHING UNIT SELECTION
Press MODE to switch between metric and imperial.
5.2 TARE FUNCTION SETTING
This scale equips with auto tare, continuous tare (please refer to F9 of internal
setting) and manual tare.
a. If auto tare function is enabled, the first weight being placed on platter will
be automatically tared
b. If continuous tare function is enabled, each weight being placed on platter
will be automatically tared
c. If manual tare is needed, place the load/container on the platter first and
press TARE to tare off the weight. After weight is tared, NET indicator will
appear indicating the weight showing on display is net weight
5.2.1 How To Clear Tare Function (auto tare, automatic continuous tare and
manual tare)
a. To clear auto tare, remove the initial weight/load from the platter and NET
indicator will turn off. Press ZERO to return to zero weight status if ZERO
indicator does not appear
b. To clear continuous tare, remove all loads from platter and NET indicator
will switch off. Press ZERO to return to zero weight status if ZERO indicator
does not appear
c. To clear manual tare, remove everything from platter and press TARE, the
NET indicator will turn off. Press ZERO to return to zero weight status if
ZERO indicator does not appear
5.3 MEMORY FUNCTION
5.3.1 How To Save A Weighing Result To Memory
a. Place a load on the scale and result will show on the display
b. Wait the Stable signal appears then press M+/MC
c. Weight result is now saved to memory and M+ indicator appears indicating
memory contains data
d. Remove the load and scale will return to zero weight status
e. Put on another weight and press M+/MC to save the next weight

5.3.2 How To Recall A Weighing Result From Memory
a. Press MR at anytime to recall the total result saved in memory, MR
indicator appears indicating the value shown on display is total result
b. Result will remain on display for a short while before return to the previous
screen
5.3.3 How To Clear Weighing Result From Memory
Follow the below steps to clear saved data from memory after all transactions
completed.
a. Press MR first to recall the total saved result from memory, the MR
indicator will appear
b. Press M+/MC immediately to clear the memory and M+ indicator will turn
off indicating there is no data in the memory
5.4 PIECE COUNTING FUNCTION
VGW/VOW equips with simple piece counting function, please follow the below
procedure to enable the function and sampling method.
a. Indicator is on and both Zero indicator and Stable indicator are on
b. Press MODE until display shows PCS as weighing unit on the display
c. Press and hold MR and display shows S: 10, this means count 10pcs of the
same item to put on platter for sampling the average unit piece weight
d. If 10pcs is not the prefer sampling quantity, continue to press ZERO and
display will show S:20, S:50, S:100, S:200, S:500 and S:1000. When the ideal
quantity is reached, press MODE to confirm and put the sample quantity on
platter. Do not load the platter before pressing MODE key.
e. Scale will begin the sampling process to calculate the unit piece weight,
when the sampling is done scale will show the sampled quantity on display
f. Remove the load and put new batch, display will show the batch quantity.
g. If display shows a value while platter is empty, press ZERO to zero off the
weight.
h. If a new sampling is needed, press and hold MR to start new sampling by
following step c to d.
NOTE:
1. If scale detects the total weight of samples on the platter are smaller than
20d, the PCS sign will start flashing as warning. Press ZERO key to change
the sampling quantity setting or add more samples until the signal is off.

2. If scale detects the unit piece weight of the sample is smaller than minimum
unit weight, the PCS sign will start flashing as warning (unit piece weight
must not small than 0.5d). It is recommended using smaller capacity scale
for this sampling.
3. When PCS sign flashes, sampling process can still in process but might result
errors.
5.5 CHECK WEIGHING FUNCTION
The scale is equipped with check weighing function which allowing users to set
high and low limits to quickly checking the weight of each product within the
range or not.
a. Indicator is on and both Zero indicator and Stable indicator are on
b. Press and hold MODE until display shows CHK W
c. Press MODE to enter and display shows Hi for hi limit setting, press ZERO
for value increment and TARE for shifting digits. Press MODE to confirm and
entering low limit setting
d. Display shows LoW, press ZERO for value increment and TARE for shifting
digits. Press MODE again to confirm and entering alarm setting
e. Display shows bEEP first and then showing bb-no, press ZERO for options
bb-Go, bb-H.L, bb-Hi, and bb-Lo
Display
Description
bb-no
No alarm for any weighing result
bb-Go
Alarm activates when weighing result falls within the range
bb-H.L
Alarm activates when weighing result falls outside the range
bb-Hi
Alarm activates when weighing result higher than the range
bb-Lo
Alarm activates when weighing result lower than the range
NOTE:
1. Check weighing function can be engaged under any weighing unit including
piece counting mode. When the weighing unit is PCS and check weighing
mode is activated, display will show CHK P for checking piece.
2. If check weighing limits have been programmed before, display will show
PrEV for resuming the previous setting or not when entering the setup.
Press MODE to confirm using the previous setting or ZERO to set new limits.
3. To temporary disable check weighing function, press and hold MODE again
to enter check weighing setup and press ZERO when displays CHK W

5.6 HOW TO CONNECT RS-232 (D-sub 9 pin female connector)
Refer to 4.1.8 to setup transmission protocol
Scale Mainboard
Pin 7 & 8 Shorted internally

Pin Assignment (PC end)
Pin
Assignment
1
DCD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
NC

6. DAILY CARE AND MAINTENANCE
-Do not attempt to open the scale or try to repair except authorized technicians
only
-Always aware of the operating environment to avoid excessive moisture and
extreme temperature
-Use original factory supplied switching adaptor for charging only
-Recharge the battery immediately when the battery level indicator starts
flashing to avoid permanent damage to the rechargeable battery
-Do not put anything on the platter after weighing completes to avoid causing
damage to the load cell
-If cleaning is needed, use damp cloth to clean the scale body. Stainless steel
platter can be removed for cleaning purpose
-If cleaning agent is needed, please use mild detergent and avoid excessive
water. Do not use any chemical or alcohol for cleaning purpose
-If you are uncertain about how to properly maintaining your scale to the
optimal condition, please contact your dealer for further assistance

APPENDIX:
ERROR CODES
ERROR CODE
DESCRIPTION
SOLUTION
Err 0
Flash memory accessing error
Change MCU, contact
dealer for assistance
Err 1
A/D accessing error
Check A/D, contact
dealer for assistance
------
No load cell signal/load cell reading error
Check load cell and
connection
Err 2
Load cell wiring error
Check load cell wiring pin
assignment
Err 3
Offset value too low/too high
DISPLAY SEGMENT DEFINITION