Bender ISOMETER IRDH275, Manual

Page: 145 / 184

Operation and setting
53 IRDH275_D00122_03_M_XXEN/05.2017
6.4.3 Memory setting (on/off)
Memory: on = Fault memory is activated
The device must be reset with the RESET button after
clearing the fault.
Memory: off = Fault memory deactivated (factory setting)
6.4.4 Current output for external measuring instruments
(IRDH275B)
Factory setting: 0…20 mA
The current output of the IRDH275 can be set to "0…20 mA" or "4…20 mA" via
the menu point "M+/M-:". The maximum load is 500 Ω.
Function 0…20 mA:
R
F
= insulation fault, I= current in mA
Function 4…20 mA:
R
F
= insulation fault, I= current in mA
The associated characteristic curves are illustrated on page 83.
During the automatic self test, the alarm relays are not
switched over.
When a device fault occurs at the ISOMETER® , the relay K2
will automatically be activated as a device fault relay.
Ω
Ω
Ω
Ω