A&D GH Series Manuale delle Istruzioni Scaricare il pdf (Pagina 15)

3.1. Calibration Group

English

GB 15

The GR series has the following calibration modes and tests.

• Automatic Self Calibration

• Calibration using the internal weight

• Calibraton using an external weight

• Calibration test using the internal weight

• Calibration test using an external weight

• Correction of the internal weight value

Note: Calibration is controlled by the “Permission or Prohibition”.

Refer to Section “Function Switch and Initialization”.

The weight which can be used for calibration test is called “the target weight”. The weight which you

have is called “the external weight”.

Note: It is necessary to perform calibration:

• When the balance is installed for the first time.

• When the balance has been moved.

• When the ambient environment has changed.

• For periodical calibration.

• Prevent vibration, draughts, and ambient temperature changes during calibration of the balance.

• This indicator means “the balance is measuring calibration data”. Do not allow

vibraton or draughts to affect the balance while this indicator is displayed.

• The data for GLP (Good Laboratory Practice) can be output using the RS-232C interface, when the

“GLP output (inFo)” of “Data output (dout)” is set to “/” or “2”. Refer Section 8 “Function table”.

Caution using an External Weight

• The accuracy of an external weight can ifluence the accuracy of the balance.

Product Usable external weight Adjustable range

GR-202

200 g, 100g

GR-200 +15.9 mg ~ –15.0 mg

GR-120 100 g, 50 g

GR-300 200 g, 300 g

3. Calibration

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A&D GH Series Manuale delle Istruzioni Pagina 15