During insulation measurements, the measu-
rement voltage charges capacitive UUTs. The
UNITEST TELARIS 0100 plus automatically di-
scharges the UUT after completion of the me-
asurement. When interrupting the measure-
ment or when removing the test leads prior to
test termination, a dangerous voltage may be
present at the UUT. If a dangerous voltage is
detected during voltage measurement, the
UUT must be manually discharged using a high
impedance resistance (not via short-circuit!).
During the measurement, the operator may not
touch the UUT/the installation being tested,
danger of electrical shock!
If UUTs of higher capacitance´s are tested (e.g.
long cables or conductors), the automatic di-
scharge may take longer.
Connect 2 test leads to the TELARIS 0100 plus
(sockets L1 and L2).
Only Connect both ends to the UUT by using al-
ligator clips.
The PE connection should not be connected;
otherwise, the TELARIS 0100 plus cannot per-
form correct measurements and displays 0.00
MΩ.
Select insulation resistance measurement
range (RINS) via the rotary switch.
Select the desired test voltage (100V / 250V /
500V) by means of ' VINS ' (22) or ' VINS '
(23) keys.
To start automatic measurements, briefly press
the "Start” key (26)
If the automatic measurement takes a long time
(approx. 10s), then the UUT has a high capaci-
tance value. In this case, you should carry out
a continuous measurement, as the automatic
measurement should be interrupted after 10s.
Possibly, the correct final value has not yet sta-
bilised.
During the measurement, the instrument con-
tinuously shows the nominal voltage (500 V)
of the insulation measurement function in the
lower display part.
Read the measurement value on the display.
If „>199.9 MΩ" appears on the display, a par-
ticularly good insulation resistance has been
measured.
It is possible to store the measurement result
by pressing the „Store" (27) key.
You may even enter continuous measurement
if the instrument program is set to automatic
measurement by pressing the "Start” key (26)
and keeping it depressed. The measurement
lasts until the "Start" key (26) is released again.
Even during automatic measurement you may
enter continuous measurement mode when
pressing the 'Start' key (26) and keeping it de-
pressed.
During the measurement process, intermedia-
te results are displayed. The continuous mea-
surement should be carried out until final me-
asurement value stabilisation.
14
Insulation Measurement
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