Fluke 9100 User Handbook Manual page 10

Final Width = 215mm
1-4 Section 1: Introducing the Model 9100
1.2.2.4 Calibration Mode
Calibration of the 9100 itself cannot proceed until two security measures have been
satisfied:
1. The rear panel 'CAL' switch must be set to its 'ENABLE' position.
Note: The switch is recessed behind a small hole — at shipment this hole is covered by
a paper seal which should not be broken except for an authorized recalibration.
A broken seal is regarded as invalidating the previous calibration.
2. An acceptable password must be entered on the screen.
Once into Calibration mode, There are three types of calibration available:
• 'Special' calibration, enabling automatic calibration of the main A-D converter.
This should be used only under supervision — if it is suspected that such calibration
may be required, contact your Fluke Service Center.
• 'Factory use only' is an initial calibration which is not available to users, requiring
a second password.
• 'Standard Calibration' will initiate manual calibration procedures for those functions
for which recalibration is required. These are: DC Voltage, AC Voltage, DC
Current, AC Current and Resistance
Re-compensation of the Capacitance function is performed automatically on transfer
to Capacitance function from another function, only if 20 minutes has elapsed from
power on, and only if one or more of three conditions are satisfied since the most-
recent re-compensation:
24 hours has elapsed.
or Internal temperature has changed by ±5°C.
or The Resistance function has been externally calibrated.
Those 9100 calibration sequences which are user-accessible are detailed in Section 10.
If it is suspected that some other calibration may be required, contact your Fluke
Service Center.