AC/DC insulation monitor ISOMETER® isoRW685W-D

DC4-20 mAModbus

Railway universally applicable 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). Features ISOMETER® for IT AC systems with galvanically connected rectifiers or inverters and for IT DC systems (IT = unearthed systems). 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) Remote diagnosis via the Internet (made available by Bender Service only) isoData: Continuous uninterrupted data transmission RS-485/BS (Bender sensor bus) for communication with other Bender devices BCOM, Modbus TCP and web server