LS series sensors are developed for gas leak detection for the industrial testing sector. They are typically used in instruments that operate with a “sniffer” method by selectively drawing gas into specific areas of apparatus where leaks could occur. To achieve maximum sensitivity they operate in a single IR channel scheme, so they require recalibration (zeroing the background signal) before each leak search. They are capable of measuring a leak with a response time of 0.5 seconds.

The most frequently detected gases are refrigerant gases in the refrigeration industry, hydrocarbons, and insulating gases for high-voltage electrical networks (such as SF6 or Novec). However, most molecular gases are detectable. Qbit has already made sensors for: CO, CO2, R134, R404 , R407, R410, R22, R1234yf , CH4, C2H6, C3H8 (R290), C4H10 (R600) – C2H4O, C2H2 , C2H4 , SF6 , NH3 , Novec 4710, Novec 5110 , SO2 , SO2F2 , SOF2 . Other gases can be investigated at the customer’s request.

The standard models of LS series sensors are listed below and their data sheets with measurement specifications can be downloaded.