Instruction manual

16
7. CALIBRATION
7-1 Calibration Mode
Calibration / Calibration test
 Calibration Using the Internal mass (only for FZ-CT/GD series)
 Calibration using an external weight
 Calibration test using an external weight (Calibration test does not perform calibration.)
Terms
The following terms are defined as follows:
External weight = A weight that you have. Referred to as a calibration weight when used for
calibration.
Calibration weight = A weight used for calibration
Target weight = An external weight used for calibration test
Caution
 Calibration adjusts the balance for accurate weighing.
Besides periodic calibration and before each use, perform calibration when:
• The balance is installed for the first time.
• The balance has been moved.
• The ambient environment has changed.
 Do not allow vibration or drafts to affect the balance during calibration.
 To output the data for GLP using the RS-232C serial interface, set “GLP output ( info )” of
“Data output ( dout )”. For details, refer to “9. FUNCTION TABLE”.
 Calibration test is available only when “GLP output ( info )” of “Data output ( dout )” is set to “1” or “2”.
Caution on using an external weight
 The accuracy of an external weight will influence the accuracy of weighing. Select an
appropriate weight as listed below:
Model Usable calibration weight Adjustable range
FZ-300CT / FX-300CT 50 g, 20 g
FZ-600CT/ FZ-120GD
FX-600CT/ FX-120GD
100 g, 50 g
FZ-200GD / FX-200GD 200 g, 100 g
FZ-300GD / FX-300GD 300 g, 200 g, 100 g
-0.050 g to +0.050 g
FZ-1200GD / FX-1200GD 1000 g, 500 g,
FZ-2000GD / FX-2000GD 2000 g, 1000 g
FZ-3000GD / FX-3000GD 3000 g, 2000 g, 1000 g
-0.50 g to +0.50 g
The calibration weight in bold type: factory setting
The calibration weight value can be adjusted within the range above.
Display
 This indicator means “the balance is measuring calibration data”.
Do not allow vibration or drafts to affect the balance while this
indicator is displayed.