• 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: The device variant iso685-D features a high-resolution graphic LC display and operating controls for direct operation of the device functions.
iso685-S: The device variant iso685-S is operated via the detached operating unit FP200.
Option “W”: The ISOMETER®s with and without integrated display are available for extreme climatic and mechanical conditions.
Features
• ISOMETER® for IT AC systems with galvanically connected rectifiers or inverters and for IT DC systems (IT = unearthed systems).
• Nominal system voltage Un expandable via coupling devices
• 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.
Options : for AC networks, DC, AC/DC, for three-phase systems
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