Metal case Charged material

3.2.During Use

Note the following items to get accurate weighing data. Discharge static electricity from the weighing material. When weighing sample (plastics, insulator, etc.) could have a static charge, the weight value is influenced. Ground the balance, and

Eliminate the static electricity using the optional AD-1683.

Try to keep the ambient humidity above 45%RH at the room.

Use a metal shield case.

Wipe a charged material (plastic sample etc.) with a damp cloth.

This balance uses a strong magnet as part of the balance assembly, so please use caution when weighing magnetic materials. If there is a problem, use the underhook (on the bottom of the balance) to suspend the material away from the influence of the magnet.

Eliminate temperature differences between the weighed sample and the environment. When a sample is warmer (cooler) than the ambient temperature, the sample will appear lighter (heavier) than the true mass. This error is due to the rising (falling) draft next the sample. If you touch the sample, the same type error will occur. Do not touch the sample directly with your hand. Use tweezers or other tools.

Make each weighing gently and quickly to avoid errors due to changes in the environmental conditions.

Before weighing with a minimum display of 0.01 mg for the GH-252 and GH-202, the "fine range breeze break ring" can be installed in place of the "breeze break ring" to avoid errors caused by drafts.

Do not drop things upon the weighing pan, or place a weight beyond the range of the balance on the weighing pan.

Do not use a sharp instrument (such as a pencil or ball point pen) to press the keys, use your finger only.

8

Grounding

Magnet material

Draft

20°C 40°C Weighing pan

Fine range breeze

break ring

Shock

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A&D GH-120/GH-200/GH-300/GH-202/GH-252 manual During Use, Shock