HT instruments SIRIUS89N - Manual (Page 32)

SIRIUS89N
EN - 30
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.
Tripping Current
RCD 05.06.01 Tripping time (expressed in
milliseconds).
Value of contact voltage U
t
detected referred to the
rated value of the RCD
current set.
OK: RCD passed the test.
27
mA
35ms
FRQ=50.0Hz Ut= 1V
VP-N=231V VP-PE=231V
RCD OK
30mA 50V
!
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.
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