Rice Lake GF Series, A&D Weighing - Manual (Page 25)

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8. CALIBRATION
8-1 Calibration Modes
The GF series balance has the following two modes.
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 interface, set “GLP output ( info )” of “Data
output ( dout )”. For details, refer to “10. 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 can influence the accuracy of weighing. Select an
appropriate weight as listed below:
Model Usable calibration weight Adjustable range
GF-200 200 g, 100 g
GF-300 300 g, 200 g, 100 g
GF-400 400 g, 300 g, 200 g
GF-600 600 g, 500 g, 400 g, 300 g, 200 g
GF-800 800 g, 700 g, 600 g, 500 g, 400 g, 300 g, 200 g
GF-1000 1000 g, 900 g, 800 g, 700 g, 600 g, 500 g, 400 g, 300 g, 200 g
-0.015 g to +0.015
g
GF-1200 1000 g, 500 g
GF-2000 2000 g, 1000 g
GF-3000 3000
g, 2000 g, 1000 g
GF-4000 4000 g, 3000 g, 2000 g
GF-6100 6000
g, 5000 g, 4000 g, 3000 g, 2000 g
-0.15 g to +0.15 g
GF-6000 6000 g, 5000 g, 4000 g, 3000 g, 2000 g
GF-8000 8000 g, 7000 g, 6000 g, 5000 g, 4000 g, 3000 g, 2000 g
-1.5 g to +1.5 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.