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ISOMETER® isoRW685W-D-B

ISOMETER® isoRW685W-D-B

  • Railway
  • universally applicable

The ISOMETER® isoRW685W-D-B 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, converters, variable-speed drives).

  • Features
  • Applications
  • Accessories
  • Ordering information
  • Downloads
  • ISOMETER® for AC IT systems with galvanically connected rectifiers or converters and for DC IT systems (IT = unearthed systems)
  • Automatic adaptation to the existing system leakage capacitance
  • Combination of AMPPlus and other profiledependent measurement methods
  • Two separately adjustable response value ranges of 1 kΩ…10 MΩ
  • High-resolution graphic LC display
  • 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 13 days) for storing a maximum of 1023 alarm messages with date and time
  • Current or 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 (web server/option: COMTRAXX® gateway)
  • Remote diagnosis via the Internet (only by Bender service)
  • RS-485/BS (Bender sensor bus) for data exchange with other Bender components
  • ISOnet: Internal separation of the ISOMETER® from the IT system to be monitored (e.g. if several IT systems are interconnected)
  • BCOM, Modbus TCP/RTU and web server
  • Nominal system voltage can be expanded via coupling device
  • 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 with switch-mode power supplies
  • IT systems with high leakage capacitances

 

Mandatory accessories for ISOMETER® isoRW685W-D-B


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-B


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-B


TypeNominal system voltage range UnSupply voltage USArt. No.
isoRW685W-D-BAC 0…690 V; 0,1…460 Hz
DC 0…1000 V
AC 24…240 V; 50…400 Hz /
DC 24…240 V
B91067022W

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