Trafag Gas Density Monitor

  • Exact switching following isochore at all temperatures
  • Continuous density measurement
  • No contact bouncing
  • 1 to 3 microswitches and analog output
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878x SF6 Hybrid Gas Density Monitor

With analog and switching outputs

Trafag SF6 Hybrid Gas Density Monitor combines switching outputs and analog output signal.

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…56.1 kg/m3
Output monitor Floating change-over contact
Output sensor 6.5 … 20 mA
Temperature range -40°C … +80°C
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