Gas density monitors


  • Medium and high-voltage instruments
  • Monitoring of the density of SF6 gas in closed tanks
  • Raising an alarm when defined limit values have been reached

Special Features

  • Case and wetted parts from stainless steel
  • On-site display with switch contact
  • Temperature-compensated and hermetically sealed, therefore no influence of temperature fluctuations, differences in level and atmospheric pressure fluctuations
  • Compensation for gas mixtures possible
  • Traceability by serial number


Gas density is a crucial operating parameter for high-voltage equipment. If the required gas density is not present, safe operation of the plant cannot be guaranteed.

The WIKA gas density measuring instruments provide reliable warnings against dangerously low gas levels, even in extreme environmental conditions. Electrical switch contacts warn the plant operator when the gas density drops below defined levels due to leakage.

Numerous fields of application
The WIKA gas density monitor is hermetically sealed and temperature-compensated. Measured value fluctuations and erroneous alarms caused by changes in either ambient temperature or air pressure are therefore prevented.

Via the on-site display, the system pressure based on 20 °C can be read directly on the instrument. With the integrated switch contacts, simple switching tasks can be realised quickly and without complication.

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