KYORITSU 2413F - Manual (Page 23)

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Use the following troubleshooting guide for hints on problems with
instrument operation.
８．Before Sending for Repair
Transformer jaws buzz
when measuring large
current.
───
This is not a failure.
Condition
Display blanks after power-
on.
Battery is improperly
installed.
Battery is exhausted.
Install the battery correctly.
Replace the battery.
Possible Cause Remedy
Display reading remains
frozen.
Data hold button is pressed
in.
Peak hold switch is at ON
position.
Release data hold button.
Set peak hold switch to
OFF position.
The lowest digit of reading
is unstable.
───
This is not a failure.
The instrument is highly
accurate, so it senses
slight variations in the
current under test.
Output cord (Model 7073)
dose not output voltage.
The cord is open is circuit. Check the cord for an open
circuit.