KYORITSU 6011A - Manual (Page 7)

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Over temperature protection Detects overheating of the internal resistor
(used for loop and PSC tests) and of the
current control MOS FET (used for RCD tests)
displaying a warning symbol (
) and
automatically halting further measurements.
15mA Loop measurement Loop impedance200Ω and 2000Ωrange
measurement are carried out with low test
current (15mA).
The current will not cause tripping out involved
RCD even the one with the lowest nominal
differential current (30mA).
DC Test Allows testing of RCD's which are sensitive to
DC fault currents. Phase angle is positive(0ﾟ)
only.
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 10 minutes. The
power-off state returns to normal when the
rotary switch is re-set to any power-on position.
Select UL (limit of touch voltage value)25V or
50V. In order to change it to 25V,turn the
power on with pressing AUTO NULL/UC
SWITCH.
Then it is set to 25V can be reset to default
50V by turning the power off. Where UC
(contact voltage)exceeds UL value, "UcH" will
be displayed without starting the measurement.
Optional Accessory OMA DIEC(Model7133) distribution board or
lighting circuit and test lead for LOOP／PSC／
RCD testing.
UL value change
and UC Monitoring