18
Names and Functions of Parts
Displaying 1-minute values (p. 37)
• Turns on when 1 minute has passed since the start of insulation
resistance measurement.
• Indicates that the resistance value on the bottom of the display
is a 1-minute value (the measured value 1 minute after the start
of measurement).
Turns on when the comparator function is enabled. (p. 31)
Turns on when the instrument is set to the 500 V range or the
1000 V range.
Pressing
turns off the indicator and enables insulation
measurement.
Indicates wireless communications function status. (p. 51)
IR4056
Measured value
or comparator reference value
(Other functions are the same as
the IR4057-50.)
Turns on when the reference value is indicated by the
comparator function.
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