Fluke 8508A User Manual page 195

7. On the Calibrator, select the negative Range Gain Point Output value.
8. Note the 8508A reading. Compare the result with the allowable tolerance, taking into
account any known error from nominal of the calibrator for this output.
9. On the Calibrator, deselect
Set zero output and select
10. On the 8508A, select
Table 6-11. DC Current Verification Points and Sequence
8508A Range
200 μA
2 mA
20 mA
200 mA
2 A
20 A
Based on 365 day Tcal ±1°C 99 %CL Absolute specifications. See comments in Applicable Verification Tolerance section
1.
above regarding the impact of calibration uncertainties and use of other specifications.
to allow the Calibrator to Auto range.
LOCKED
to put the Calibrator output into Standby.
STBY
to revert to the range menu.
DCI
Current
0 μA
Perform input zero operation to calibrator range locked zero output
± 0.00190 μA
+100μA
± 0.00190 μA
-100μA
0 mA
Perform input zero operation to calibrator range locked zero output
± 0.0000190 mA
+1mA
± 0.0000190 mA
-1mA
0 mA
Perform input zero operation to calibrator range locked zero output
+10mA ± 0.000200 mA
-10mA ± 0.000200 mA
0 mA
Perform input zero operation to calibrator range locked zero output
± 0.00530 mA
+100mA
± 0.00530 mA
-100mA
0 A
Perform input zero operation to calibrator range locked zero output
± 0.0002260 A
+1A
± 0.0002260 A
-1A
0 A
Perform input zero operation to calibrator range locked zero output
+10A ± 0.004950 A
-10A ± 0.004950 A
Adjustment and Verification
Performance Verification
1
Tolerance
6
6-47