PROGRAMMING INSTRUCTIONS
The GM-Series offers several Weigh Modes, Balance Settings and Interface Options. Weigh Modes include Gram
(g) Milligram (mg) / Kilogram (kg) and Percent Weighing. The GM-Series also offers adjustable settings for Auto
Zero, Baud Rates, Print (data send) Commands, Electronic Filtering and Audible Key Tone functions.
To access the Weigh Modes simply Press Mode Key to scroll between g, lb, oz, ct, mg or kg, ozt, dwt, gn, Parts
Counting, Percent Weighing (%) and Animal Weigh. Please see Display / Keypad Diagram. To access and adjust
the Program Settings of your choice, please following the instructions listed below:
Step Display
1. Press On / Off Key to Turn Balance Off. Blank (w Stand-by Power Indicator On)
2. Press Print Key Twice. C1 - - 0
3. To “advance” to the next Program Setting or Interface Option
Press Print Key.C2 - - 0, C3 - - 0, C4 - - 0, etc.
4. To “adjust” a Program Settings or Interface Option Press Mode
Key (Example: Auto Zero) C3 - - 0, C3 - - 1, C3 - - 2, etc.
5. To Save Programming Settings Press ON / Off Key Blank (w Stand-by Power Indicator On)
6. Press On / Off Key to Turn Balance On and Return to the
Weigh Mode. 0.0000
WEIGHING PROGRAMS
1) Basic Weighing Mode (g, mg/kg)
Once installation and calibration have been completed the GM-Series is ready to weigh. Simply place a
sample on your weigh pan and the result will appear on the display. Response (stabilization) time on the
GM-Series is 3 seconds, average. When the balance has reached stability, an icon will appear on the left hand
side of the display. Gram (g) is the factory default setting. To select another unit of measure, Press the Mode Key
until the desired mode of measurement (g, lb, oz, ct, mg or kg, ozt, dwt, gn) appears in the display.
2) Percent Weighing Mode
Percent Weighing mode allows the user to obtain values in a percentage that are proportional to an initial
reference weight. To activate the Percent Weighing function simply Press the Mode Key until the mode indicator
Percent (%) appears on the display. Once you have selected the Percent Weighing Mode place the reference
sample on the weigh pan and Press CAL Key to assign the reference sample a value of 100%. If you would like to
use a sample container, remove the reference sample, place the container on the balance and Press Tare Key.
Place your sample into the container) and the percentage value will appear on the display. Example 50%.
3) Parts Counting Mode
In addition to weighing samples, GM-Series balances have the ability to “count” parts. For the best results
please ensure that you have selected a balance with the proper resolution for your smallest part and that the parts
are approximately equal in weight. For example, if you wish to count a 500 parts at a time that weigh 0.001g per
part you should use a balance with 0.001g (or greater) resolution. In addition, you should select the highest level of
Initial Sample Size (i.e.: 100) to ensure an accurate average piece weight as a reference. The factor default setting
for Initial Sample Size is Ten.
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