Fluke 8508A User Manual page 164

8508A
Users Manual
Range Zero and Gain Points
1. On the 8508A, select the required range.
2. On the Calibrator, select the positive Range Gain point Output value.
3. On the Calibrator, set zero output.
4. On the 8508A, press
5. Press
6. On the Calibrator, select the positive Range Gain point Output value.
7. If the Set feature is being used:
8. Press
9. On the Calibrator set an output of -1 digit.
10. On the 8508A, press
11. Press
12. On the Calibrator, select the negative Range Gain point Output value, allowing for
13. If the Set feature is being used:
14. Press
15. On the Calibrator, deselect
16. On the 8508A, select
6-16
• To overcome thermal EMF differences when the calibrator polarity is
changed, it is necessary to reference negative Range Gain to the
minimum negative output (-1 digit) on that range.
• For the 8508A 200V and 1kV DC ranges, setting the Calibrator to the
Range Gain point will cause the Calibrator output to revert to Standby.
It will be necessary to reselect OPR to operate the output.
• For the 1kV DC range the Calibrator cannot be Range locked for the
zero adjustments, omit steps 2, 9, 10 and 11.
Deselect to range lock the calibrator.
AUTO
Select to operate the calibrator output.
OPR
CAL
to initiate the adjustment operation.
SAMPLE
Adjustment is complete when the busy legend goes out and the adjusted
measurement is displayed.
On the 8508A, select Set on the
Use the numeric keys with the
calibrator at the range gain value, then press Enter.
to initiate the adjustment operation.
SAMPLE
Adjustment is complete when the busy legend goes out and the adjusted
measurement is displayed.
CAL
to initiate the adjustment operation.
SAMPLE
Adjustment is complete when the busy legend goes out and the adjusted
measurement is displayed.
the -1 digit offset.
On the 8508A, select Set on the
Use the numeric keys with the
calibrator at the range gain value, then press Enter.
to initiate the adjustment operation.
SAMPLE
Adjustment is complete when the busy legend goes out and the adjusted
measurement is displayed.
Set zero output and select STBY to put the Calibrator output into Standby.
DCV
Notes
to enter the Calibration Menu.
Menu.
CALIBRATION
menu to enter the true output value of the
SET VALUE
to enter the Calibration Menu.
Menu.
CALIBRATION
menu to enter the true output value of the
SET VALUE
to allow the Calibrator to Auto range.
LOCKED
to revert to the range menu.