Chapter II
Digital Earth Tester
41
Method:
x
Turn the selector switch to "clamp".
x
Connect the clamp to the "COM" and "clamp" terminals.
x
Choose the appropriate rating on the clamp (2 A or 200 A).
x
Clamp the cable(s) you wish to test. The measurement is carried out automatically.
3.6.
Measuring AC voltage
AC voltage can be measured up to 600 V.
This function is useful for testing an installation prior to continuity, earth or insulation tests,
for example.
Method:
x
Turn the selector switch to 600 V
.
x
Connect the test leads to the "COM" and "V" .
x
The measurement is carried out automatically. The voltage is displayed in Volts on
the LCD screen.
3.7. RCD
test
The test is carried out between the phase and the earth. It is in 1 x I
'
n pulse mode. The
user selects one of the 3 voltages according to the size of the differential circuit breaker to
be tested: 30 mA , 100 mA, 300 mA, 500 mA, 650 mA.
The result of the test is the circuit breaking time expressed in ms.
3.7.1. Method
x
Set the switch to
I
.
x
Choose the 600 V
position with the switch (600 V
/ RCD axis).
x
Connect the PE terminal to the earth protection circuit and the L to the phase
circuit, the protection of which can be verified.
Stage 1
Long push (> 2 s)
on "Test"
Select the RCD function, calibre 30 mA.
The corresponding light comes on. The display shows
the voltage (in V) present in the device terminals
(I
'
n = 30 mA).
Stage 2
Short push (> 2 s)
on "Test"
Select another voltage range.
Each push selects the next range and the
corresponding light comes on.
(I
'
n = 100 mA, I
'
n = 300 mA, I
'
n = 500 mA or
I
'
n = 650 mA)
Stage 3
Long push on "Test"
The test is launched.
If it starts
Æ
its duration is displayed in ms.
If "I" is displayed, the test is not started for 0.5 s
(change of current I
'
n).
Stage 4
Short push on "Test"
Exit from the function. The display shows the voltage
(in V) present in the device terminals.
*
With the RCD function, you can only perform one test per input in the mode.
To repeat a test, you must first close the mode (stage 4), then open it again
(stage
1).
