Three-phase system insulation monitor ISOMETER® iso685-…-P series

medium-voltagefor AC networksRS485

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. Device variants iso685-D-P: This device variant ISOMETER® iso685-D-P features a high-resolution graphic LC display and operating controls for direct operation of the device functions. It cannot be combined with an FP200. iso685-S-P: This device variant ISOMETER® iso685-S-P features neither a display nor operating controls. It can only be used in combination with the FP200 and it is operated via this front panel. Option "W": The ISOMETER®s with and without integrated display are available with option „W“ for extreme climatic and mechanical conditions (ISOMETER® iso685W-D-P and iso685W-S-P). Features 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