Hocom GRW Series User manual

GRW Weighing Scale
User Manual
User Manual
GRW Series
Digital Weighing Scale

GRW Weighing Scale
User Manual
Cautions
Upon receiving the scale, please take at least 8
hours to recharge the battery before you start to
operate this scale.
Please recharge the battery after a long period of
storage (more than one month). It takes 8~10
hours to fully recharge the battery.
Please assemble the platter before powering on
the scale.
Do not keep the weight placed on the platter for a
long period.
Keep the scale away from the environment with
high temperature, high humidity, heavy press,
and heavy bump.
Always make sure the scale is located in a flat
and plane surface.
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GRW Weighing Scale
User Manual
Panel & Keypad
The below panel & keypad are suitable for
table scale/ Indicator/bench scale/floor scale.
※Installation Diagram of Bench Scale: please see page 10.
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GRW Weighing Scale
User Manual
Symbols on LCD
Zero Symbol (O):
Oappears on the left-bottom corner of LCD, and
indicates the scale is at zero-point.
Tare Weight Symbol (Net):
Net appears on the bottom edge of LCD, and
indicates the tare weight has been deducted.
Battery Symbol ( ) :
When LCD indicates and the scale sounds
beep for four times, it means the battery is running
in low-voltage status. LCD will indicate
continuously for reminding the user to recharge the
battery. If the battery is still running in low-voltage
status without being recharged, LCD will indicate
-OFF-and the scale will sound beep for eight times.
Please power off the scale and recharge the battery
immediately.
kg、lb、oz、PCS Symbols :
kg or lb or oz or PCS appears on the bottom edge of
LCD, and indicates the present weighing mode.
Lo、ok、Hi Symbols :
The cursor will appear indicate the location (on
Lo/ok/Hi limit range) of the present weight value.
-
3
-
-

GRW Weighing Scale
User Manual
Operation Instructions
 Backlight (optional) :
Please press and hold [MODE] key till the scale
sounds beep in order to enable or disable the
optional Backlight.
MODE :
Select the weighing mode (kg / lb / oz / PCS).
 ＊ :
This key has no funtion.
ALARM :
1. Over-Weight alarm:
Place a specific weight on the platter and then press
[ALARM] key to set the weight for Over-Weight
alarm. The scale will sound beep repeatedly.
e.g.: Put 5kg weight on the platter, and then press
[ALARM] key. The scale will sound beep repeatedly.
At this moment, if the measured weight ≧ 5kg, the
scale will sound beep repeatedly. Press [ALARM]
key again could disable the setting of Over-Weight
alarm.
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GRW Weighing Scale
User Manual
2. Hi/Lo Weight Limit:
Press and hold [ALARM] key till the scale sounds
beep and LCD indicates -Lo-.
1. Press [ALARM] key to enter -Lo- mode to set
up -Lo- Weight Limit.
2. Use [ALARM] and [MODE] keys to set up the
value of -Lo- Weight Limit. Press [MR] key to
confirm the setting, and then LCD will indicate
-HI-.
3. # If –HI- Weight Limit does not need to be set,
press [MR] key could pass the setting of -Hi-
Weight Limit and save the setting of -Lo- Weight
Limit only. Then LCD will go back to normal
weighing mode.
# If –HI- Weight Limit needs to be set, please
press [ALARM] key to enter -HI-mode, and then
use [ALARM] and [ZERO] keys to set up the
value. Press [MR] again to save the setting, and
then LCD will go back to normal weighing mode.
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GRW Weighing Scale
User Manual
Example 1:
Set up 2.00 in -Lo-mode (-Lo- Weight Limit only).
If the measured weight ﹤2kg
The cursor will not appear and the scale will not
sound beep repeatedly.
If the measured weight ≧2kg
The cursor will appear indicate the location on Hi.
and scale will sound beep repeatedly.
Example 2:
Set up 5.00 in -Lo-mode and 5.50 in -HI-mode:
(2-1) If the measured weight ﹤5kg
The cursor will appear indicate the location on Lo.
(2-2) If 5kg ≦the measured weight ≧5.5kg, the 
cursor will appear indicate the location on ok and the
scale will sound beep repeatedly.
(2-3) If the measured weight ＞5.5kg
The cursor will appear indicate the location on Hi.
M+ :
Press [M+] key could save the measured weight into
the memory bank. (up to 99 data accumulation and
24 data recall)
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GRW Weighing Scale
User Manual
MR :
Press this key to recall the data one by one which is
saved in the memory bank by press [M+] key. When
the last data is showed, press [MR] key again will
show the total accumulation weight on LCD.
MC :
Press this key could delete all accumulated data in
the memory bank.
ZERO :
Press this key to make the scale be at zero point.
LCD will indicate O on the left-bottom corner.
TARE :
Press this key to deduct the tare weight. Put the
package or container on the platter and then press
[TARE] key. LCD will show O and Net.
Simple Counting Mode
Under -PCS- mode:
!! The suggested unit weight of the measured
subject should be heaver than the division of this
scale.
1. Put 100 pieces of the measured subject (with the
same unit weight) on the platter.
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GRW Weighing Scale
User Manual
2. Press and hold [MODE] key till LCD shows S= 10,
and then quickly (within 3 seconds) press [MODE]
key again to select S=100 (10、20、50、100 could
be selected for the sample-quantity of the
measured subject).
3. Wait till LCD shows 100. The scale has finished
calculating the averaging unit weight of the
measured subject. Now the simple counting
function is ready. This scale could be used as a
simple counting scale.
RS232 Interface Connection: <optional device>
RS232 Wiring Configuration:
Baurate: 9600
Parity: None
Stop Bit: 1
Data Bit: 8
5
4
3
2
1
9
8
7
6
SCALE
5
4
3
2
1
9
8
7
6
PC
8
GND
DATA OUT

GRW Weighing Scale
User Manual
Recharge the Battery
Power off the scale and connect the power cord to
an AC outlet. CHARGE LED will indicate the
ongoing status of the battery. It takes about 8~10
hours to fully recharge the battery.
CHARGE LED:
Color of LED
Status of the battery
RED
Initial connection
ORANGE
Charging
GREEN
Fully-charged
Power Requirements
AC: 220V±10%, 50Hz
DC: 6V/4Ah rechargeable battery;
P=0.2W(max)
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GRW Weighing Scale
User Manual
5
1
8
2
3
4
6
7
List of Components:
No.
Item
<1>
Indicator
<2>
Regulator
<3>
Stainless Steel Tube
<4>
Tube Base
<5>
Stainless Steel Platter
<6>
Main Structure
<7>
Cable of Load Cell
<8>
Connector
Installation Diagram of Bench Scale
Installation Procedure:
A. Screw <4> Tube Base and <6> Main Structure together (with 2 screws
of Tube Base).
B. Insert <3> Stainless Steel Tube into <4> Tube Base (with 2 screws of
Stainless Steel Tube).
C. Screw <2>Regulator and <3> Stainless Steel Tube together (with 1
screw and 1 clip of Regulator).
D. Please refer to the Diagram; pull <7> Cable of Load Cell, from the
bottom to the top, through <3> Stainless Steel Tube; and then screw
the Clip on the bottom of <4> Tube Base (with 1 screw of Clip).
E. Connect <1> Indicator with <2> Regulator. Notice the direction.
Please refer to the arrow on the diagram for proper direction.
F. Put <5> Platter on <6> Main Structure.
G. Insert <8>Connector into the socket of <1>Indicator. Complete
installation
※ Before using this scale, please unscrew the protecting-screw fixed
on the bottom side of the steel-welding base structure.
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GRW Weighing Scale
User Manual
We do more than you expect
Digital Weighing Scale