Timer Measurement - BEHA Unitest Telaris ISO Plus Mode D'emploi

PTDB90690001.qxd:PTDB9069-02.qxd
Now connect the test leads to UUT.
Press the "Start" key (20). The measurement
is started.
Ensure correct and clean contact to UUT. A bad
contact to UUT may cause the interruption of
the measurement.
The test voltage remains present at UUT until
the TELARIS ISO plus has determined the in-
sulation resistance value or as long as the
"Start" key (20) is pressed.
During the measurement the symbol of the
measurement unit (MΩ/GΩ) is displayed.
If the measurement value falls below the pre-
set limit value, a signal is audible after the end
of the measurement and the ""-symbol ap-
pears.
To store the measurement result, press the
"Save" key (21).
The measurement value remains displayed
until the start of a new measurement procedure
or until a different measurement range is se-
lected.
The UUT is automatically discharged after the
measurement. During this time the symbol of
the measurement unit is blinking.
External voltage protection for insulation resis-
tance measurement range.
If a external voltage of maximum 1200 V is con-
nected by mistake to the insulation measurement
socket, the TELARIS ISO plus will not be damaged.
The instrument display indicates +"UEXT" (please
also refer to chapter 10.0). After removal of the ex-
ternal voltage wait for approx. 30 seconds. Only
then correct measurement results will be indicated.
02.10.2008 15:36 Uhr

6.1.1 Timer Measurement

The Timer measurement, in particular together with
the limit value monitoring, is a capable tool to quick-
ly test the insulation resistance of a multitude of
conductors with reference to the protective con-
ductor.
To carry out the Timer measurement, press the Start
key. The measurement is carried out until the pre-
set timer period has elapsed. Three different mea-
surement times are available: 10 s, 30 s, 180 s.
For the measurement procedure, please
refer to the insulation measurement.
The pre-set measurement time (0 s, 10 s, 30
s or 180 s) is indicated briefly when press-
ing the "Timer" key (18).
During the Timer period display, this time can
be extended by pressing again the "Timer" key
(18) (respectively 0-10-30-180-0, etc.).
During active timer function the 'Timer' sym-
bol is displayed on the screen.
The timer function is switched off by select-
ing the time 0s. The 'Timer' symbol goes out.
The pre-set time is maintained even after the
instrument is switched off.
Connect the UUT to the measurement instru-
ment. In case a limit value monitoring has to be
performed, select the respective limit value by
means of the 'Limit' key.
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Measurements
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