HT instruments SIRIUS87 User Manual
Page 26
SIRIUS
87
EN - 24
4.3.1.1. Mode "MAN x½"
4.
Press the
START/STOP key once. The instrument carries out the
test injecting a current in phase with positive half wave of the
voltage indicated on
display by 0°.
Press the
START/STOP key twice. The instrument carries out the
test injecting a current in phase with negative half wave of the
voltage indicated on
display by 180°.
If the RCD does NOT trip the
instrument emits a
double sound
signal indicating the positive
outcome of the test and displays the
screen alongside.
RCD
~
>
999
ms
OK
N
30
m
A
2
V
x1/2
MAN
0° U
L
=
50
V
SAVING:
The test can be stored pressing the
SAVE key twice
(according to § 5.1).
Value of contact
voltage
U
t
detected referred
to the rated value
of the RCD
current set.
OK: indicates that
RCD passed the
test.
The symbol
">" means that the RCD did not trip.
Indicates if the test was carried out with current
phase 0° or 180° with respect to the voltage.
or RCD
SAVE
START
STOP
Limit set for the
contact voltage