TM-507
EN - 15
CAUTION
The message on the display means that the instrument is discharging
eventual capacitors. During this phase never disconnect nor touch test leads.
Nominal test voltage
value
9. At the end of the test the instrument
automatically discharge eventual capacitors and
parasite capacitances present among the
conductors involved in the measurement
10 At the end of the test a screen similar to this is
displayed
Resistance value
11
Nominal test voltage
value
If the resistance value is higher than the full
scale, a screen similar to this is displayed.
Note! An insulation value higher than the full
scale is an excellent insulation value,
generally much higher than the minimum
requirements prescribed by standards
12
+
Press
LOCK
and
GO
to perform the measurement in continuous
mode, the symbol
LOCK
is displayed. Press
GO
another time to
stop the continuous mode measurement
13 In lock mode the instrument emits an acoustic signal and the auto power off is disabled
4.6.1. Measurement time setting mode
Press
LOCK
more than one second, a screen similar
to this is displayed
Press the arrow keys to select the desired time value
Press
GO
to confirm the selected value
4.6.2. Anomalous
cases
which may occur during M
Ω
tests
If, during measurement, the input voltage
present at terminals is higher than 24V, the
instrument suspends the test.
A screen similar to this is displayed showing the
input voltage value
Input voltage value
