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Tue Sep 26 18:48:30 2017
Tue Sep 26 18:48:30 2017
ISOMETER® isoRW685W-D

ISOMETER® isoRW685W-D

The ISOMETER® isoRW685W-D is an insulation monitoring device for IT systems in accordance with IEC 61557-8 for railway applications and has been specifically tested according to DIN EN 50155. It is universally applicable in AC, 3(N)AC, AC/DC and DC systems. AC systems may include extensive DC-supplied loads (such as rectifiers, inverters, variable-speed drives).

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  • ISOMETER® for IT AC systems with galvanically connected rectifiers or inverters and for IT DC systems (IT = unearthed systems).
  • Nominal system voltage Un expandable via coupling devices
  • Automatic adaptation to the existing system leakage capacitance.
  • Combination of AMPPlus and other profilespecific measurement methods.
  • Two separately adjustable response value ranges of 1 kΩ…10 MΩ for alarm 1 and alarm 2
  • High-resolution graphic LC display for excellent readability and recording of the device status.
  • Connection monitoring (monitoring of the measuring lines).
  • Automatic device self test.
  • Graphical representation of the insulation resistance over time (isoGraph)
  • History memory with real-time clock (buffer for three days) for storing 1023 alarm messages with date and time.
  • Current and voltage output 0(4)…20 mA, 0…400 μA, 0…10 V, 2…10 V (galvanically separated) which is analogous to the measured insulation value of the system.
  • Freely programmable digital inputs and outputs.
  • Remote setting via the Internet or Intranet (Webserver/Option: COMTRAXX® Gateway).
  • Worldwide remote diagnosis via Internet.
  • RS-485/BS (Bender sensor bus) for communication with other Bender devices
  • BCOM, Modbus TCP and web server
  • AC, DC or AC/DC main circuits
  • AC/DC main circuits with directly connected DC components, such as rectifiers, converters, variable-speed drives
  • UPS systems, battery systems
  • Heaters with phase control
  • Systems including switched-mode power supplies
  • IT systems with high leakage capacitances

 

Mandatory accessories for ISOMETER® isoRW685W-D


Type designationArt. No.
A set of screw terminals*B91067901
A set of push-wire terminalsB91067902
Enclosure accessories (terminal cover, 2 mounting clips)*B91067903
* included in the scope of delivery

Optional accessories for ISOMETER® isoRW685W-D


Type designationTypeArt. No.
Coupling devicesAGH150W-4
AGH204S-4
AGH520S
AGH676S-4
B98018006
B914013
B913033
B913055
Suitable measuring instruments on request!

Variants of ISOMETER® isoRW685W-D


TypeNominal system voltage range UnSupply voltage USArt. No.
isoRW685W-DAC 0…690 V; 1…460 Hz
DC 0…1000 V
AC 24…240 V; 50…400 Hz /
DC 24…240 V
B91067012W

Downloads for ISOMETER® isoRW685W-D

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