AC network insulation monitor ISOMETER® isoRW685W-D-B

AC/DCDCModbus

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 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) isoData: Continuous uninterrupted data transmission RS-485/BS (Bender sensor bus) for data exchange with other Bender devices via Modbus RTU protocol BCOM, Modbus TCP und web server