Bender ISOMETER isoRW425 User Manual

14
isoRW425_D00052_03_M_XXEN / 02.2017
3. Function
3.1 Device features
 Monitoring of the insulation resistance (R mode) or the insulation
impedance (Z mode) of unearthed 3(N)AC, AC and DC systems (IT sys-
tems) with galvanically connected rectifiers or inverters
 Insulation impedance (Z mode) for 50 Hz or 60 Hz
 Measurement of the mains voltage (r.m.s.) with undervoltage and over-
voltage detection
 Measurement of DC voltages system to earth (L+/PE and L-/PE)
 Automatic adaptation to the system leakage capacitance up to 300 F
in R mode and 1F in Z mode
 Automatic device self test with connection monitoring
 Selectable start-up delay, response delay and delay on release
 Two separately adjustable response ranges of 1…990 k (alarm 1,
alarm 2)
 Alarm signalling via LEDs (AL1, AL2), a display and alarm relays (K1, K2)
 N/C operation or N/O operation can be selected for the relays
 Measured value indication via multi-functional LCD
 Fault memory can be activated
 RS-485 (galvanically isolated) including the following protocols:
– BMS interface (Bender measuring device interface) for data
exchange with other Bender components
– Modbus RTU
– IsoData (for continuous data output)
 Password protection to prevent unauthorised parameter changes

Bender ISOMETER isoRW425 Specifications

General

Brand	Bender
Model	ISOMETER isoRW425
Category	Measuring Instruments
Language	English