VR2250
Page 31 of 131
6.3.2.4. Results of "
RAMP
" mode
4.
Press the
START
key
once
to execute a test with
0°
Current waveform.
Or
Press
the
START
key
once
to execute a test with
180°
Current waveform.
The instrument generates a leakage current growing step by step for a given
time interval.
CAUTION
Never disconnect the test leads when the message
"MEASURING"
is
displayed.
At the end of the test if
the RCD tripping current
is lower than I
∆
n
(Type
AC) or 1.4I
∆
n
(Type A
with I
∆
n
>10mA) or 2I
∆
n
(Type A with I
∆
n
≤
10mA),
the instrument emits a
double sound signal
indicating the positive
outcome of the test and
displays the screen
alongside.
Tripping Current
RCD 05.06.01
Tripping time (expressed in
milliseconds).
27mA
35ms
FRQ=50.0Hz Ut= 1V
VP-N=231V VP-PE=231V
RCD OK
30mA
⎯
50V
Value of contact voltage
U
t
detected referred to the
rated value of the RCD
current set.
OK:
RCD passed the test.
FUNC IdN RCD UL
Contact Voltage Limit value
Working mode
RCD nominal current
RCD type
The test can be stored pressing the
SAVE
key
twice
(according to paragraph 9.1).
START
STOP
