Frequency Checks - Fluke 8508A User Manual

8508A
Users Manual

Frequency Checks

Equipment Configuration
1. Ensure that the calibrator output is set to STANDBY and configured for Internal
2. Connect the equipment as described for Routine Calibration.
3. Press the ACV key, select the 2V range
4. Press the
5. Confirm that the 8508A is configured for internal guard (External Guard is
Procedure
1. On the 8508A press MONITOR and then
2. Press the MONITOR key and select
3. On the calibrator set the output to the voltage to 1V and frequency to 1MHz. Set the
4. Note the 8508A frequency reading. Check the result is within 0.000012MHz, taking
5. Set the calibrator output to STANDBY.
6-42
Guard (EXT GRD is deselected).
key. Select
CONFIG
deselected) by checking that the Ext Grd legend does not appear on the left-hand
display.
output to OPERATE.
into account any known error from nominal of the calibrator output frequency for this
point.
Tfer On, Filt 40Hz.
. Deselect FREQ GATE Fast.
CONFIG
.
FREQ