Predefined measurement profiles
Reliable measurement of insulation resistance, voltage, capacitance and frequency
Integrated web server
Modbus TCP/RTU
History memory
The ISOMETER® is an insulation monitoring device for IT systems in accordance with IEC 61557-8 and IEC 61557-9. 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, variablespeed drives).
In combination with the insulation fault locators of the EDS44x series or the appropriate measuring current transformers, an insulation fault location system can be set up with the 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 AMPPlusand 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)