Precise Counting Scale – GC
User Manual
SNOWREX INTERNATIONAL
CO., LTD.
SRGC 20100415
Table of Contents
Table of Contents ........................................................................................1
Specifications ......................................................................................................... 2
Basic specification.......................................................................................... 2
Series specification(EC TYPE/OIML APPROVED)..................................... 2
Series specification(NON-APPROVED)....................................................... 2
Display and keypad ................................................................................................ 3
LCD Display................................................................................................... 3
Displays .......................................................................................................... 3
Keypad............................................................................................................ 5
Using the Digital Counting Scale...............................................................6
Zero function .......................................................................................................... 6
Tare function........................................................................................................... 6
Sampling method:................................................................................................... 6
Clearing input data, piece weight, and accumulated weights ................................ 7
Alarm function ....................................................................................................... 7
Operation of M+............................................................................................. 8
Operation of MR ............................................................................................ 9
Programme Setting ............................................................................................... 10
Calibration ............................................................................................................ 12
1
Specifications
Basic specification
LCD, height 17mm,
Display Digit
5/6/6(WEIGHT/PIECE WEIGHT/PIECES)
280 x 200 (WxL)
Pan Size(mm)
280x300x110(WxLxH)
Dimensions(mm)
3.6kg
Net Weight(kg)
0∘C to +40∘C
Operating
Temperature
Less than 85%
Relative
Humidity
DC9V / 500mA, AC adapter;
Power
Built in 6V Rechargeable Battery
RS-232C (optional)
Interface
Series specification(EC TYPE/OIML APPROVED)
Model GC-6D GC-15D GC-30D
3kg / 6kg 6kg / 15kg 15kg / 30kg
Max1 / Max2=
20g / 3kg 40g / 6kg 100g / 15kg
Min1 / Min2=
1g / 2g 2g / 5g 5g / 10g
e1 / e2=
1/3000(Dual) 1/3000(Dual) 1/3000(Dual)
Accuracy
Series specification(NON-APPROVED)
Model GC-3H GC-6H GC-15H GC-30H
Max. Capacity
3kg 6kg 15kg 30kg
d =
0.1g 0.2g 0.5g 1g
Accuracy
1/30000 1/30000 1/30000 1/30000
2
Display and keypad
LCD Display
Displays
The display panel consists of three display windows and a set of function keypad.
Display DESCRIPTION
WEIGHT Displays the weight or the tared weight in g/kg.
PIECE WEIGHT Displays the average piece weight either by sampling or direct input.
PIECES Display the counts on the weighing pan.
ICON INDICATOR DESCRIPTION
Hi
Upper bound
indicator
When the ALARM function is activated, if the weight is over the upper
bound, ► is positioned on the left of Hi icon and starts flashing.
Go
Range indicator When the ALARM function is activated, if the weight is between HI and
LO range, ► is positioned on the left of Go icon and starts flashing.
Lo
Lower bound
indicator
When the ALARM function is activated, if the weight is under the lower
bound, ► is positioned on the left of Lo icon and starts flashing.
▼ is positioned above of the icon when scale is stabilized.
Stable indicator
▼ is positioned above the icon when weight on the pan is zero.
Zero indicator
▼ is positioned above the icon when the tare function is ON.
Tare indicator
▼ is positioned above the icon when kilogram is selected as the unit of
weight.
kg indicator
3
▼ is positioned above the icon when gram is selected as the unit of
weight.
gram indicator
ICON INDICATOR DESCRIPTION
▼ is positioned above the icon when the sample
weight is too light.
LIGHT SAMPLES LIGHT SAMPLES
indicator
▼ is positioned above the icon when the piece weight
is too light.
LIGHT WEIGHTS LIGHT WEIGHTS
indicator
▼ is positioned above the icon when gram is selected
as the unit of weight.
Gram indicator
ICON INDICATOR DESCRIPTION
MEMORY
Memory indicator When the memorized and aggregated counting results and
weights are shown on the display, ► is positioned above the
icon.
Hi
Upper bound indicator When the ALARM function is activated, if the PIECES are
over the upper bound, ► is positioned on the left of Hi icon
and starts flashing.
Go
Range indicator When the ALARM function is activated, if the PIECES are
between HI and LO range, ► is positioned on the left of Go
icon and starts flashing.
Lo
Lower bound indicator When the ALARM function is activated, if the PIECES are
under the lower bound, ► is positioned on the left of Lo
icon and starts flashing.
4
Keypad
ICON KEYS DESCRIPTION
Numerical Keys Press to input digit data, e.g. piece weight and numbers
of samples.
~
Decimal Key
Press to set decimal point when taring and sampling
Zero Key
Press to set the scale to zero.
Tare Key Press to subtract out the mass of the weighing
container.
Sample Count Key After setting the sample count number, press to save
the sample count data.
Piece Weight Key After setting the sample piece weight, press to set the
given piece weight..
Clear Key
Press to clear the input data or reset the piece weight.
Alarm Key Press to set up the upper and lower bounds of weights
and pieces.
Subtotal Key Press to memorize and aggregate the counting results
and weights.
Replay Memory Key Press to view the accumulated weights and pieces in
memory.
This is a compound key whose function varies
according to the Pr settings. When Pr is set as LP50-1,
press to print out LP-50 label format. Press and hold
the function key to enter printer menu and change
setting.
Function Key
5
Using the Digital Counting Scale
Zero function
When there is no weight loaded and the scale shows trivial weight, press the to
clear the weight and set the scale to zero.
1. Press the key to clear the trivial weight. The WEIGHT display should be cleared.
2. ▼ should show above the icon.
Tare function
The Tare Function subtracts out the mass of the weighing container.
key to tare the current weight
Push
1. Place sample container on the weighing pan.
2. Press key to turn on the Tare function. ▼ is displayed above the icon and the
WEIGHT display shows zero.
3. If the sample container is removed after the tare operation, the WEIGHT display should show
a negative value.
Clearing the tare weight:
1. Remove the sample container from the pan and press the key. ▼ on the indicator is
turned off. The WEIGHT display again shows zero.
Sampling method:
The two methods are covered below:
A. Piece Count setting (If the piece weight of the sample is not known)
1. Place certain number of the sample parts on the scale pan, the weight value
should shows on the WEIGHT display.
2. Enter the number of the sample parts, it will show and flash on the PIECE
WEIGHT display.
6
3. Press the key. Now the average piece weight shows on the PIECE
WEIGHT display. The sampling number will show on the PIECES display.
B. Piece Weight setting (If the piece weight of the sample is known)
1. Enter the piece weight value by numerical keys. It will show and flash on the
PIECE WEIGHT display.
2. Press the
key. The piece weight will fix on the PIECE WEIGHT display.
Place samples on the scale pan directly and the PIECES display will show the
number.
Clearing input data, piece weight, and
accumulated weights
1. Press the key to clear the numerical input or the previous piece weight.
2. In Memory mode, press the
key to clear the subtotal amount in memory.
Alarm function
A. Piece weight and sample weight are not enough:
1. When average piece weight or pre-set piece weight is deficient, the ▼
signal of LIGHT WEIGHTS will show and flash, the operator may continue
working. However slight inaccuracy may occur.
2. When the sample weight is deficient, the ▼ signal of LIGHT will show and
flash, the operator may continue working. However slight inaccuracy may
occur when sampling. Using more samples for sampling is suggested under
such condition.
B. Quantity and weight alarm:
It can set both high and low limit or specific value alarm of the quantity and weight
as well.
7
-->Establish the current keyed-in value as upper bound of weight.
--> Establish the current keyed-in value as lower bound of weight.
--> Establish the current keyed-in value as upper bound of quantity.
--> Establish the current keyed-in value as low bound of quantity.
When weight alarm is set, the
► indicator left to Go icon on the WEIGHT Display
will show.
When the weight is higher than upper bound, the
► indicator left to Go icon will
disappear while the
► indicator left to Hi icon will flash and the beep will sound.
If the weight is lower than lower bound, the
► indicator left to Lo icon will flash and
start beep sounds.
When pieces alarm is set, the
► indicator left to Go icon on the PIECES Display
will show.
When the pieces are higher than upper bound, the
► indicator left to Go icon will
disappear while the
► indicator left to Hi icon will flash and the beep will sound.
If the pieces are lower than lower bound, the
► indicator left to Lo icon will flash and
start beep sounds.
Operation of M+
1. Load the weight on the scale after sampling.
2. Press to accumulate the weighing result including weights and pieces in
memory. When a beep sounds, Memory indicator appears on the LCD.
3. Clear the load on the weighting pan and place another load on the weighing pan.
4. When the scale is stable, press again. After a beep sound, the second data
has been recorded. ( The user may re-sample or not )
z After each recording, if the load on the weighing pan is not cleared, pressing
will result in the long beep and the scale will not be able to record the next
weighing result.
z The scale can save up to 180 weighing results.
8
Operation of MR
1. In weighing mode, press to recall the accumulated weighing results. “WT” is
displayed in WEIGHT Display. The Total Weight is displayed in the PIECE
WEIGHT Display and the total accumulation is displayed in the PIECES Display.
2. Press again. The WEIGHT column is cleared and displays “PCS” and the
total piece count is displayed in the PIECE WEIGHT Display. The total
accumulation is displayed in the PIECES Display.
3. Press to clear the stored data from the memory, and the scale will return to
normal weighing mode.
4. If the user doesn’t clear the stored data, press again, the scale will return to
normal weighing mode, too.
9
Programme Setting
You can modify the settings for Zero Tracking, Tare Function, Auto Off Time,
Backlight, Print-out Format and Baud Rate. (*shows the default setting)
To enter the programme setting mode, do the following
1. Press and hold any key while powering on. The Weight Display will shows
.
2. Press
to choose CAL 1 and press to get into programming sequence.
3. In programming sequence, press to choose parameter numbers.
4. And then press
for confirmation and going to next step.
A. Zero T racking
0d
1d *
2d
3d
4d
B. Auto Power Off
None
in 10 minutes
in 20 minutes
in 30 minutes *
in 60 minutes
C. Backlight
None
Active
Auto lighting while loading *
D. Print Out-put
Print function off *
Print weight in a row continuously
Print weight in a row continuously when stabilized
Print out total weight, piece weight, and pieces
Print out total weight, piece weight, and pieces when
stabilized
Print out MR weight in report format
Print out MR weight in label format
10
Print label using LP printer with preset format
Auto print label using LP printer w/ preset format
when stabilized
E. Baud rate
*
F. Linearity linear 0 Disable default linearity calibration values
linear 1 *
Enable default linearity calibration values
for 2 seconds and then press
In weighing mode, press
again to choose the
following settings:
In. Id Set the ID no. on label
In PAGE Modify the print out label format
In CN Set the serial no. on label
Use the numeric keys to enter ID no., print out format, or serial no. Press
again
to save your settings and exit Programme setting mode. To exit without changing the
settings, press the
key.
Note: In PAGE and In CN settings are only available for when Print Output Setting
is on LP50-1 or LP50-2.
11
Calibration
Note:
To enter calibration menu, you have to remove the jumper JP3 first. Put the jumper back after the
calibration is complete.
The calibration procedures are to be performed by engineers only.
1. Press and hold any key while powering on. The Weight Display will show
.
2. Press
to choose CAL 2 and press to get into Calibration mode.
Displays show:
.
3. Press the
key to make WEIGHT Display zero.
Displays show:
.
4. Put on the calibration weight, Displays show:
.
5. Input the weight value of calibration weight.
(For example, if the WEIGHT Display shows that the unit is “kg”, put on one
calibration weight of 6 kg. and then enter “6”. If the WEIGHT Display shows
that the unit is “g”, put on one calibration weight of 6 kg. and then enter
“6000”.)
to finish calibration.
6. When the scale is stable, press
12
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