
A&D GR Series Instruction Manual
GB 12
2.Introduction
Thank you for your A&D purchase!
This is an Instruction Manual for the GR Series of Electronic Balances. The GR Balance is a product from
years of research, design, development and in-field testing. It incorporates the latest advances in elec-
tronic and mechanical engineering and offers increased features, increased functions, high resolution and
portability; all in a low profile balance base. Every care has been taken during the manufacturing process
of this balance to ensure that it will perform accurately and reliably for many years.
• Electronic Balances are in one sense extremely simple products; they are very easy to use. In another
sense they are rather complex in that they are high technology products. This manual will try to explain
in simple terms how this balance works and how to get the most from it in terms of performance.
The G Series includes two single-range models:
• G1204 (120g x 0.0001g)
• G2104 (210g x 0.0001g)
• GR-300 (310g x 0.0001g)
and a dual range model: G2105D dual range (210g x 0.0001g / 42g x 0.000001g)
Features
• Built-in Calibration Weight (internal weight), used to calibrate and verify the calibration of your balance.
• Automatic Self Calibration, using the built-in weight, adapting to changes in temperature.
• Automatic Response Adjustment, adapting to vibration and drafts in the environment.
• Data Memory Function, storing 200 weighing data.
• Interval Memory Mode, storing weighing data periodically.
• Good Laboratory Practices (GLP) data output using a serial interface.
• Underhook, for measuring specific gravity and magnetic substances.
• Multiple Weighing Units, with most of the common units used around the world.
• RS-232C serial interface, for transmitting data and controlling your balance.
• Door Control Lever – a front mounted door control can easily open and close one of the side doors if
connected using the door joint.
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