Fluke 8508A User Manual page 177

3. On the 8508A press the
operation.
The legend will appear, and then extinguish when the zero operation has
Busy
completed.
4. On the calibrator select the value required for verification in the positive polarity.
5. 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.
6. On the calibrator select the value required for verification in the negative polarity.
7. 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.
8. Set the calibrator output to
Table 6-8. DC Voltage Verification Points and Sequence
8508A Range
200 mV
2 V
20 V
200 V
1000 V
1. Based on 365 day Tcal 1 C 99 %CL Absolute specifications. See comments in Applicable Verification Tolerance section above
regarding the impact of calibration uncertainties and use of other specifications.
key, and select
INPUT
.
STANDBY
Voltage
0 mV
Perform input zero operation to calibrator range locked zero output
+100 mV 0.00072 mV
-100 mV 0.00072 mV
0 V
Perform input zero operation to calibrator range locked zero output
+1 V 0.0000045 V
-1 V 0.0000045 V
0 V
Perform input zero operation to calibrator range locked zero output
+1 V 0.000009 V
+10 V 0.000045 V
+19 V 0.000081 V
-1 V 0.000009 V
-10 V 0.000045 V
-19 V 0.000081 V
0 V
Perform input zero operation to calibrator range locked zero output
+100 V 0.00065 V
-100 V 0.00065 V
0 V
Perform input zero operation to calibrator range locked zero output
+1000 V 0.0066 V
-1000 V 0.0066 V
Calibration and Verification
Performance Verification
to initiate the zeroing
Zero Rng
1
Tolerance
6
6-33