Ac Current Checks - Fluke 8508A User Manual

8508A
Users Manual

AC Current Checks

Equipment Configuration
1. Ensure that the calibrator output is set to
2. Connect the equipment as described for Routine Adjustment.
3. Press the
4. Confirm that the 8508A is configured for internal guard (External Guard is
Procedure
Repeat the following sequence for each range, starting with the 200μA range and
working up to the 20A range, as listed in Table 6-12.
1. Select the required 8508A range.
2. On the calibrator set the output to the current and frequency for the point being
3. Note the 8508A reading. Compare the result with the allowable tolerance, taking into
4. Repeat steps 2 – 4 for each point to be verified on the 8508A range to be verified.
5. Set the calibrator output to
6-48
Guard ( is deselected).
EX GRD
key
ACI
deselected) by checking that the
display.
verified as listed in Table 6-12. Set the output to
account any known error from nominal of the calibrator for this output.
STANDBY
legend does not appear on the left-hand
ExGd
OPERATE
.
STANDBY
and configured for Internal
.