GW Instek GDM-8245 - Capacitance Calibration

GDM-8245 Service Manual
66
5. Press Auto/Man to re-calibrate the range. The mode
will change to CL51. Press Auto/Man again to save
when the calibration has settled. The mode will return
to CL50.
6. Repeat steps 2 to 6 for the following inputs and ranges.
Range
Input
Specification
5mA
2mA/70Hz
2mA±4
50mA
20mA/70Hz
20mA±4
500mA
200mA/70Hz
200mA±4
2A
2A/50Hz
2A±4
20A*
8A/400Hz
Reading of
8.010A±4
*Press SHIFT + ACA to enter the 20A range
Note
The Up and Down arrow keys can be used to change the
DMM ACA range up and down.
Note
Ensure the correct terminal is used for each range.
ACA calibration is complete
Capacitance Calibration
Accepted range
±3 digits for all ranges
Equipment
 Capacitor calibrator
 Test leads
Configurations
 GDM-8245: 5nF, 50nF, 500nF, 5uF, 50uF
 Multimeter Calibrator: 30nF, 300nF, 3uF, 30uF
 Standard capacitance: 3.282nF
Verification
procedure
1. Enter CL50 Calibration mode.