Sonel P-4 - Voltage Measurement; Circuit Continuity Test under Voltage; RCD Test; Measurement of Resistance

P-4 ● P-5 ● P-6 – USER MANUAL
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To perform the RCD test:
 connect test probes to the tested circuit,
 press and simultaneously hold both buttons
. As a result:
 vibration motor vibrates after receiving
voltage (approx. 200 V),
 the indicator light will be activated.
Pressing only one triggering button or
will not trigger the RCD.
3.6.1 Voltage measurement
Introducing low impedance into the tested circuit
reduces capacitive and inductive interferences.
3.6.2 Circuit continuity test under voltage
Activation of the vibration motor confirms the con-
tinuity of the tested circuit.
3.6.3 RCD test
The test involves forcing the differential current be-
tween L phase and PE line, and this current must
exceed the tripping current of the RCD.
3.7 Measurement of resistance
CAUTION!
The tested object must not be energized.
 Press button for more than 2 seconds, to
select resistance measurement – the indicator
light will be activated.
 Apply the tips of test probes to the terminals of
the tested object.
 Read the resistance value from the display.
 The function is active only with efficient
batteries.
 If the tips of test probes are open or the
measured value exceeds the measure-
ment range, the device displays value
OL.
 If dangerous voltage is detected during
resistance measurement, the tester will
activate the indicator light of dangerous
voltage.
 When operating in this mode, the Auto
OFF function of the tester is inactive.