KYORITSU 4118A Manual De Instrucciones página 31

3.3-3 Model 4118A have the following features:
● Battery is not used
● Wiring check
● Over temperature
protection
● Overload protection Halts measurement to prevent damages to the body
● 15mA Loop
measurement
● Display
● Manual and Autotest mode
Manual － Press and release the "Press to Test" button. The result will be
displayed for 3s and then the display will revert to AC voltage.
Autotest － The "Press to Test" button can be turned clockwise to lock it
down. In this auto mode, when using distribution board lead
M-7121B, tests are conducted by simply disconnecting and
reconnecting the red phase prod of the M-7121B avoiding
the need to physically press the test button i.e. "hands
free".
All models are not battery-operated, but operate by
the voltage supplied from the system.
Three LEDs indicate if the wiring of the circuit
under test is correct. The P-E and P-N LEDs
illuminate when the wiring polarity of the circuit
under test is correct.
The Reverse LED is lit when P and N are
reversed.
Detects overheating of the internal resistor
displaying a warning symbol (
halting further measurements.
when voltage between VL-PE is more than 260V.
"VL-PE Hi" is shown on the display.
Loop impedance 2000 Ω range measurement is
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).
The liquid crystal display has 3 1/2 digits with a
decimal point and units of measurement (Ω, A,
kA,V).
— 8 —
) and automatically