• 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 devices in accordance with IEC 61557-8 for IT systems. The devices are 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).
Device variants
iso685-D: This device variant ISOMETER® iso685-D 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: This device variant ISOMETER® iso685-S 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 and iso685W-S).
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 AMPPlusand other profilespecific measurement methods
• Two separately adjustable response value ranges of 1 kΩ…10 MΩ
• 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