Infrared type sulfur hexafluoride sensor

RSS-SF6 is a non-dispersive infrared (NDIR) gas sensor that uses dual-wavelength technology for ambient air monitoring.


Designed for analysis of SF6 leakage quality and purity within gas insulated switchgear (GIS)


RSS-SF6 sensor has long term stability, repeatability and reliable performance and high-precision and easy to calibrate Modbus ASCII or RTU data communication offer a variety of options to connect the RSS-SF6 sensor to a controller.
Technical parameter
Dimensions 67mm * 36mm * 28.5mm（L * W * H）
warm-up time ＜2min（warm-up time） ＜30min（Meet all requirements）
Gas sampling method Diffuse
Measured parameters Linearity error ±2％FS
Response time（T90） ＜40s
Repeatability（RSD） ＜1％
The detection limit 1％FS
resolution 0.1％FS
Long term stability (zero): ≤±3％FS /年
Long term stability (span): ≤±3％FS /年
Temp. dependence (zero) ≤±0.2％FS /℃
Temp. dependence (span) ≤±0.3％FS /℃
Electrical Specifications supply voltage （3.3〜6.5）VDC··
Working current 最大190mA（平均90mA）; @ 5VDC
Average power ＜0.7W
Peak power ＜1W
Signal output mode UART TTL
Signal output protocol Modbus ASCII，Modbus RTU
Climatic conditions Temperature compensation （-10〜40）℃
Working humidity （0〜95）％RH
Storage temperature （-20〜60）℃
Environmental pressure compensation （30〜110）kPa
*：The above typical value is based on (101.3kPa, 20℃ clean gas without dew)