4. High Voltage Failure - This indicates the high voltage
module is not working properly.
Important: It is suggested to always power the gauge on and
allow the self-test to complete before leaving for a job site.
Place the gauge on the reference standard block and check
the results of the Self-Test and ensure there are no failures.
Charge the batteries if needed by the provided AC or DC
charger (Refer to the section on Charging Batteries).
Note: To preserve battery life for extended gauge operations,
the gauge will go into a shutdown mode if no key is pressed in
one hour. Simply press the ON key when you are ready to start
again. The gauge will not run the Self-Test if shut down was due
to an automatic one hour ‘inactive gauge shut down’ feature.
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