Gas density is a crucial operating parameter for medium voltage switchgear. If the required gas density leakage is substandard, safe operation of the plant cannot be guaranteed.

The FOSENSE gas density monitors provide reliable warnings against dangerously low gas levels, even under extreme ambient conditions. Electrical switch contact raises an alarm to the monitoring system,when the gas density drops below defined levels due to leakage.

The FOSENSE gas density monitor is hermetically sealed and temperature-compensated. Measured value fluctuations and erroneous alarms caused by changes in either ambient temperature or atmospheric pressure are therefore prevented.

Via the on-site display, the pressure can be read directly on the instrument with reference to 20℃[68 °F]. With the integrated switch contacts, simple switching tasks can be realised quickly and without complication.

They can provide multiple solutions to support new substations and the intelligent transformation of existing substations.

Rang:0∼2bar(customized)     

Material of switch contacts:  80%Ag / 20%Ni, gold-plated

Quantity of switch contacts:≤3group

Accuracy specifications:  ±1%/±1.6% at an ambient temperature of +20℃;±2.5% at an ambient temperature of -40℃ ∼ +60℃(SF₆ is a gas)

Insulation properties:Insulation resistance＞100M(500V DC);AC withstand voltage≥2kV,50/60Hz 1min         

Weather protection:IP65                                             

Contact electrical parameters:≤30VA；≤1A；≤220VDC/380VAC     

Ambient temperature:-40℃∼+60℃，Permissible humidity≤95%RH

Housing diameter: 60mm

Pressure element's gas-tight: Leakage rate ≤ 1×10－9 Pa·m3 /s(Helium mass spectrometry) 

Installation orientation: Axial

Process connection:M20×1.5(customized)                                                     

Weight:≈0.3 kg