Fluke 8508A Service Manual page 82

8508A
Service Manual
Procedure
Repeat the following sequence for each range, starting with the 200 A range and
working up to the 20A range, as listed in Table 3-12.
1. Select the required Multimeter range.
2. On the calibrator set the output to the current and frequency for the point being
3. Note the Multimeter's reading. Compare the result with the allowable tolerance,
4. Repeat steps 2 – 4 for each point to be verified on the Multimeter's range to be
5. Repeat steps 1 – 5 for each Multimeter range to be verified.
6. Set the calibrator output to
8508A Range
200 A
2 mA
20 mA
200 mA
2 A
20 A
[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.
3-42
verified as listed in Table 3-12. Set the output to
taking into account any known error from nominal of the calibrator for this output.
verified.
Table 3-12. AC Current Verification Points and Sequence
Current
100 A
100 A
100 A
100 A
100 A
1 mA
1 mA
1 mA
1 mA
1 mA
10 mA
10 mA
10 mA
10 mA
10 mA
100 mA
100 mA
100 mA
100 mA
100 mA
1 A
1 A
1 A
1 A
1 A
10 A
10 A
10 A
10 A
10 A
OPERATE
.
STANDBY
Frequency
300 Hz
1 kHz
3 kHz
5 kHz
10 kHz
300 Hz
1 kHz
3 kHz
5 kHz
10 kHz
300 Hz
1 kHz
3 kHz
5 kHz
10 kHz
300 Hz
1 kHz
3 kHz
5 kHz
10 kHz
300 Hz
1 kHz
3 kHz
5 kHz
10 kHz
300 Hz
1 kHz
3 kHz
5 kHz
10 kHz
.
[1]
Tolerance
0.0830 A
0.0830 A
0.0830 A
0.0830 A
0.0830 A
0.000580 mA
0.000580 mA
0.000580 mA
0.000580 mA
0.000580 mA
0.00580 mA
0.00580 mA
0.00580 mA
0.00580 mA
0.00580 mA
0.0545 mA
0.0545 mA
0.0545 mA
0.0545 mA
0.0545 mA
0.000945 A
0.000945 A
0.001055 A
0.001055 A
0.001055 A
0.01140 A
0.01140 A
0.02740 A
0.02740 A
0.02740 A