Ac Voltage Adjustment - Fluke 8508A User Manual

AC Voltage Adjustment

The Calibrator can deliver a lethal electric shock.
To avoid electric shock when performing the following adjustment
procedures:
•
Never touch any lead or terminal unless you are absolutely certain
that no dangerous voltage is present.
•
Make sure that signal leads are in a safe condition before you
handle them in any way
Initial Setup and Connections
1. Press the
ACV
2. In calibration mode in the ACV function Transfer mode defaults to On for enhanced
performance, resolution defaults to
automatically selected. It is recommended that this resolution, Transfer On and 40Hz
Filter is used for adjustment of all ACV ranges.
3. Confirm that the 8508A is configured for internal guard (External Guard is
deselected) by checking that the
display.
4. Ensure that the calibrator output is set to
Guard (
EX GRD
5. Connect the Calibrator to the 8508A as shown in Figure 6-1.
Range Zero, LF, and HF Gain Adjustment Procedure (not in Spot Frequency mode)
Use the following procedure to adjust range zero then range LF and HF gains on all ACV
ranges at the voltages and frequencies detailed in Table 6-4. Just one range can be
adjusted if required, but for a full-adjustment start with the 200 mV range and work up to
the 1kV range.
 Warning
key, select the range.
1 kV
RESL6
ExGd
is deselected).
Adjustment and Verification
, and the 100Hz RMS filter is
legend does not appear on the left-hand
and configured for Internal
STANDBY
6
Routine Adjustment
6-17