ISOMETER® iso685-…-P

iso685-…-P

• 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 AMP^Plusand other profile-specific measurement methods
• Two separately adjustable response value ranges of 1 kΩ…10 MΩ for Alarm 1 and Alarm 2
• High-resolution graphical 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 three days) for storing 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 (Webserver/Option: COMTRAXX® gateway)
• Worldwide remote diagnosis via the Internet (made available by Bender Service only)
• RS-485/BS (Bender sensor bus) for data exchange with other Bender devices
• 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
• Locating current injection for selective insulation fault location
• Indication of the insulation faults selectively located by the EDS system
• Parameter setting of EDS systems
• Customer-specific texts for each measuring channel

EDS44x

• Insulation fault location in AC, 3AC and DC IT systems
• Up to 12 measuring current transformers of the CTAC…, WR…, WS… measuring current transformer series can be connected
• Response sensitivity insulation fault location: 
  EDS440 2…10 mA 
  EDS441 0.2…1 mA
• Response sensitivity residual current measurement:
  EDS440 100 mA…10 A
  EDS441 100 mA…1 A
• Communication of the components via BS bus (RS-485) or BB bus