Bender ISOMETER IRDH375 - 3 Function; Common Characteristics (IRDH375 and IRDH375 B)

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IRDH375_D00124_05_M_XXEN/01.2020
3. Function
3.1 Common characteristics (IRDH375 and IRDH375B)
 ISOMETER® for IT AC systems with galvanically connected rectifiers
and for IT DC systems (IT = unearthed systems)
 The operating range of the nominal voltage U
n
can be extended via
coupling devices.
 Automatic adaptation to the existing system leakage capacitance
 measuring principle (European Patent: EP 0 654 673 B1)
 Two separately adjustable ranges of the response value1 kΩ …10 MΩ
(Alarm 1, Alarm 2)
 Two-line LC display
 Connection monitoring (monitoring of the measuring leads)
 Automatic device self test
 Option "W":
This option provides: improved shock and vibration resistance for use
in ships, on rolling stock and in seismic environment.