How To Test The Batteries; How To Test The Display; Display Hold Test; Backlight Test - Fluke 772 Calibration Manual

How to Test the Batteries

Prior to performing the following tests, check the batteries with a multimeter and
replace as necessary. See Battery Replacement.

How to Test the Display

1. Push and hold  while powering on the Meter.
2. Compare the Meter display to Figure 3.
3. Examine all display segments for clarity and contrast.
MAX

Display Hold Test

To prevent possible electrical shock, fire, or personal injury:
• Be aware of the measurement being taken when using
Display HOLD. When Display HOLD is activated, the display
will not change when different currents are applied.
• Do not use the HOLD function to measure unknown
potentials. When HOLD is turned on, the display does not
change when a different potential is measured.
Push  to activate Display Hold mode. The display shows  and the
display freezes. Push  a second time to exit and resume normal operation.

Backlight Test

Push  to turn the backlight on and off. To extend battery life, the backlight
automatically stops after 2 minutes.

Measurement Spotlight LED Test

Push  to activate the Measurement Spotlight LED. To extend battery life, the
light automatically stops after 2 minutes.
Figure 3. Display Test
XW Warning
Milliamp Process Clamp Meter
Performance Tests
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