HT instruments SIRIUS87 User Manual
Page 34

SIRIUS
87
EN - 32
In case the instrument is unable to
generate the current because the fault
loop presents a too high resistance, the
instrument emits
a long sound signal
at the end of the test and displays the
values alongside.
RCD
~
A
N
hi
ES
t
AUTO
0°
U
L
=
50 V
During U
t
test if the instrument detect s
a contact voltage U
t
higher than the full
scale value, a long sound signal is
emitted at the end of the test and
displays the screen alongside
RCD
~
>
100
V
A UL
I
N
t
0° U
L
=50V
If the RCD trips during the preliminary
test at ½ I
dn
(independently from the
working mode) the instrument displays
the screen alongside until voltage
between phase and earth is detected
again then the previous selected
screen is back.
RCD
~
c
N
- - - - - -
x
1
MAN
t
0° U
L
=50 V
If the thermistores of the instrument are
damaged, it displays the screen
alongside.
RCD
~
c
If the instrument gets overheated, tests
cannot be carried out and the message
alongside is displayed. Wait until the
initial screen is back in order to proceed
with measurements.
RCD
~
THIS RESULTS CANNOT BE SAVED.
Message
">100V" or “>50V”:
the instrument detected a contact voltage higher
than the full scale. Under U
t
mode the instrument
full scale is equal to 100V or 50V depending on the
value set for U
L
equal to 50V or 25V.
Message
“rcd”:
the RCD trips too
early. Some
leakage currents
may be present in
the installation.
Message “hot”: the instrument got overheated.
Message
“
HI rES”: the
instrument
detected a too
high resistance
therefore it is
unable to effect
the test.
SAVE