Fluke 8508A - Preparing for Adjustment

Adjustment and Verification
Routine Adjustment
6
Preparing for Adjustment
The following procedures represent the recommended order of adjustment, giving all the
necessary setup commands.
1. Allow the instrument to warm-up under power in the specified environment for at
least 4 hours.
2. Press the
CLEAR key, select Pwr Up Dflt to restore the power up default configuration
and display the
DCV menu.
3. Set the rear panel Calibration switch to
Enable. Removal of the calibration integrity
seal covering the Calibration switch will be necessary.
4. Press the
CAL key.
5. The
CALIBRATION menu is displayed.
The calibration menu appears, and the
CAL legend appears on the main display. When
entering
CAL mode and selecting a function the optimum resolution for performing
adjustment in that function is automatically selected.
Note
It is recommended that the default resolutions are used for adjustment purposes. Other
resolutions may be selected and adjustment operations performed, but accuracy of
adjustment will be degraded if adjustment is performed in lower resolutions.
 Caution
When in CAL mode with the CAL legend appearing on the main display,
the function of the SAMPLE key is modified from normal operation. If
pressed, the SAMPLE key will initiate an adjustment operation and
permanently alter the instrument calibration state. To avoid accidental
mis-adjustment do not attempt to operate the instrument in External
Trigger mode from the front panel when in Cal, and only press the
SAMPLE key when an adjustment operation is intended to be
performed.
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