The ISOMETER® of the IR427 series is designed to monitor the insulation resistance of AC circuits (medical IT systems). At the same time, the load current and temperature of the IT system transformer can be monitored.

Characteristics of ISOMETER® IR427 with MK7

• ISOMETER® IR427
• Insulation monitoring for medical IT systems
• Load and temperature monitoring for IT system transformers
• Adjustable response value for R
• Adjustable load current response value
• Integrated voltage monitoring for four alarm and test combinations MK7
• Temperature monitoring via PTC Thermistor or Bimetal switch (NC)
• Connection monitoring earth
• LEDs: Power On, Alarm 1, Alarm 2
• Internal/external test button
• Programmable alarm relay: N/O or N/C operation
• Self monitoring with automatic alarm message
• Compact two-module enclosure (36 mm)
• Four-wire interface for four alarm and test combinations MK7
• Remote alarm indicator and test combination MK7
• Easy-to-clean front foil surface
• Label field
• Panel frame alpine white
• Alarm LEDs: Power On, insulation fault overload, overtemperature
• Test button
• Mute button
• Standard flush-mounting enclosure 66 mm