—
5
—
Over temperature protection
Detects overheating of the internal resistor
(used for loop and RCD tests) and of the
current control MOS FET (used for RCD
tests) displaying a warning symbol ( ) and
automatically halting further measurements.
Phase angle selector
The test can be selected from either the
positive (0
°
) or from the negative (180
°
) half-
cycle of voltage. This will prevent tripping of
some polarised RCDs when loop testing and
may give a more accurate reading when
testing RCDs.
Auto data hold
Holds the displayed reading for a time after
the test is complete.
Auto power off
Automatically switches the instrument off after
a period of approximately 1 minutes.
V-NE Monitoring Circuit
Automatically aborts measurement when the
N-E voltage rises to 50V or greater on RCD
ranges.
Optional Accessory
OMA DIEC distribution board or lighting circuit
test lead for LOOP
／
RCD testing.
www.calcert.com
1.800.544.2843
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