sf6 sensor

F6 is a non dispersive infrared (NDIR) gas sensor, which is used for ambient air monitoring and adopts dual wavelength technology. It is specially designed for SF6 leakage, quality and purity analysis in gas insulated switchgear (GIS).

Rss-sf6 sensor has the characteristics of long-term stability, good repeatability, reliable performance, high precision and easy calibration

Modbus ASCII or RTU data communication provides multiple options to connect rss-sf6 sensors to the controller.

technical parameter

Measurement principle: dual wavelength, non dispersive infrared (NDIR),

Measurement range: 0-50 / 1000 / 1500ppm

Gas supply: by diffusion (atmospheric pressure)

Preheating time: < 2 minutes (startup time)

< 11 minutes (fade out complete)

< 30 minutes (full specification)

Measurement response

Response time (T90): appr. 1960s

Digital resolution (@ 0): 1ppm

Repeatability: ≤ ± 15ppm

Linear error (linear deviation): ≤ ± 20ppm

Long term stability (span): 12 months ≤ ± 30ppm

Long term stability (zero): 12 months ≤ ± 25ppm

The influence of T and P

Temperature dependence (zero): ≤ ± 1.5 ppm /℃

Temperature dependence (span): ≤ ± 3ppm /℃

Pressure dependence: the change of measured values ± 0- 100% / hPa

Electrical input and output

Power supply voltage: 6.5 v-9 V DC

Power supply current (peak value): < 140mA

Inrush current: < 600mA

Average power consumption: < 800MW

Output signal: RS485, 4-20mA

climatic conditions

Operating temperature: – 20 ° C + 40 ° C

Storage temperature: – 20 ° C + 60 ° C pressure: 800-1150 HPA

Ambient humidity: 0 – 95% RH (non condensing)

Typical values are related to 1013 HPA and 22 ℃ for drying (non condensing) and cleaning sample gases. The values do not include calibration gas tolerances.