Trafag Gas Density Monitor

  • Exact switching following isochore at all temperatures
  • Continuous density and temperature measurement
  • No contact bouncing
  • 1 to 3 microswitches and RS485/Modbus

SF6 Hybrid Gas Density Monitor 879x

With RS485/Modbus and switching outputs

Trafag Hybrid Gas Density Monitor combines switching outputs and RS485/Modbus.

Measurement is based on the gas density reference principle or the patented quartz tuning fork technology. Hybrid monitors combine both principles in one instrument. These technologies have excellent resistance to vibrations and shocks and proven long-term stability.

Technical data

Application High voltages switchgear
Technology monitor Reference gas measurement
Technology sensor Oscillating quartz
Range monitor Absolute: 0…1.1 MPa / (0…1100 kPa)
Range sensor Absolute: 0 … 60 kg/m3 / (0…1100 kPa)
Output monitor Floating change-over contact
Output sensor RS485/Modbus (RTU)
Temperature range -40°C … +80°C
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