User's Manual

975
Users Manual
8
AC Adapter
Input
USB Port
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Figure 3. AC Adapter Input and USB Port
Startup and Self Test
To turn the Meter on, press and hold  for a few seconds
and wait for the flashing red LED on the left side of the
display. Press  for 2 seconds to turn the Meter OFF.
Once powered up, the following information is displayed:
• Battery charge indicators
• Model number of the Meter (975)
• Firmware version number
• Current date
• Last calibration date
• Calibration due date
• Absolute barometric pressure
• Self-test countdown
At power up, the Meter performs a 35-second self-
diagnostic test for each of its functions. When it passes
the self-test, the Meter is ready for use. Refer to Table 4
for a list of self-diagnostic test failures.
Note
If portions of the self-test fail, some functions of
the Meter may still be used but this is not
recommended. Have the Meter serviced
immediately. Refer to “Contacting Fluke” for
service details.