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QUALITROL 149-400 SF6 gas density monitors with remote output

Accurate SF6 gas density monitor providing exceptional reliability

QUALITROL 149-400 SF6 gas density monitors with remote output


Provides local mechanical indication of levels of SF6 gas as well as 4-20 mA analog remote output. Unit automatically compensates for gas pressure changes due to ambient temperature. Offers alarm and limit control with up to three factory set relays.


Accurate SF6 gas density monitor providing exceptional reliability 

  • Large dial face with many standard and custom displays for clear visual indication of the SF6 gas density
  • Temperature compensated indication provides most accurate monitoring of gas levels within the tank
  • Measurement accuracy of ±2% of full scale


Avoid unexpected asset failure through a predictive maintenance approach; pair visual indication and 4-20 mA analog signal to indicate low gas density levels 

  • Visual indication of SF6 levels may be seen on the manual dial face of the instrument
  • 4-20 mA analog output for integration into a SCADA system
  • 3 Form A relays may be triggered when the density level drops below a pre-defined value


Rugged gauge design and corrosion resistant materials ensure product life 

  • Stainless steel and brass external parts offer protection against harsh environmental conditions
  • Standard 5 year warranty
  • Vented case with UV stabilized polycarbonate lens is moisture intrusion resistant

Области применения

For use on high and medium voltage gas insulated circuit breakers (live and dead tank), switchgear bushings and transformers. For gas density monitoring applications that require local and remote indication and optimal relays for alarm and limit control.

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