Amprobe Telaris-ISO-PRO Insulation-Tester - Manual (Page 16)

Timer Measurement
The Timer measurement, in particular together with the limit value monitoring, is a capable
tool to quickly test the insulation resistance of a multitude of conductors with reference to
the protective conductor.
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 measurement times are available:
10 s, 30 s, 180 s.
1) For the measurement procedure, please refer to the insulation measurement.
2) The pre-set measurement time (0 s, 10 s, 30 s or 180 s) is indicated briefly when
pressing 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‘ symbol is displayed on the screen.
3) The timer function is switched off by selecting 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 instrument. In case a limit value monitoring has to
be performed, select the respective limit value by means of the ‘Limit‘ key.
• The Timer measurement is started pressing the "Start” key. During the time that the test
voltage is present at UUT the symbol of the measurement unit (M Ω/GΩ) is blinking.
• The limit value monitoring is permanently carried out during limit value monitoring, i.e. if
the measurement value falls below the limit value. This condition is indicated by an acoustic
signal and the display of the respective symbol.
• The Timer measurement is interrupted when pressing the "Start” key. A confirmation signal
is audible. The UUT is automatically discharged upon completion of the measurement,.
The measurement unit symbol is also blinking during this procedure.
14
PAEB30872322:Layout 1 02.10.2008 15:56 Uhr Seite 14