5.2.2.4 ANOMALOUS CASES:
Anomalous cases which may occur during the insulation tests "MAN", "AUTO", "TIMER"
The symbol ">" means that the resistance value R
In case a value of MΩ higher than
R
MAX
selected voltage see following Note
Table, the instrument emits a double
sound signal at the end of the test
indicating the positive outcome of
the test and displays one screen
similar to the screen alongside.
Selected mode (MAN is indicated in the
picture).
SAVE
In case a test is taken at a voltage
lower than the set rated voltage, at
the end of the test the instrument
emits a long sound signal and
displays one screen similar to the
screen alongside.
ATTENTION: the test of resistance
voltage value lower than the set rated voltage. Low
insulation case. This case occurs under low insulation
conditions or in the presence of capacity on the
installation.
SAVE
was detected (depending on the
The test can be stored pressing the SAVE key twice (according to
paragraph 0).
MΩ
The tests can be stored pressing the SAVE key twice (according to
paragraph 0).
is higher than R
ISO
MAX
500 V
MAN
500 V
MAN
was taken at a
19
.
R
ISO
> 999
MΩ
20
s
Test duration.
R
ISO
o0.01
MΩ
20
s
Selected mode (MAN is
indicated in the picture).
Maximum
resistance
value which
can
be
measured
(999Ω
is
displayed if
a
rated
voltage
of
500V
was
selected
see Table).