GW Instek GDM-8245 - Page 62

GDM-8245 Service Manual
62
Verification
procedure
1. Enter CL50 Calibration mode.
2. Set the mode to DC mV mode. Press SHIFT + DCV.
3. Input 400mV.
4. Check the DMM display. If the voltage is within
specification, go to the next calibration range.
Range: 400mV±3 digits
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. Set the mode to DCV. Press DCV.
7. Repeat steps 3 to 6 for the following inputs and ranges.
Range
Input
Specification
5V
4V
4V±3
50V
40V
40V±3
500V
400V
400V±3
1000V
1000V
1000V±3
Note
The Up and Down arrow keys can be used to change the
DMM DCV range up and down.
DCV calibration is complete