UK Alphasense dual gas sensor sulfur dioxide and hydrogen sulfide sensor (SO2+H2S) - SOH-A2
With the increasing demand for multi-gas detection, personal safety gas detectors are now seen in almost every industry field.
Sulfur-containing gases are mostly toxic and chemically complex. By simultaneously detecting sulfur dioxide and hydrogen sulfide, we can obtain information on separating corrosive gases with different toxicologies.
Product Introduction
I. Introduction to the Sulfur Dioxide/Hydrogen Sulfide Sensor (SO2+H2S) SOH-A2:
The SOH-A2 sensor offers a unique approach in terms of external dimensions and electrode structure, using a high-capacity filter on the sulfur dioxide working electrode to completely eliminate cross-sensitivity of the channel to hydrogen sulfide, acid gases, and nitrogen oxides. In portable instrument designs, the SOH-A2 series sensor enables precise factory-level maintenance and field-level calibration of mixed gases, without worrying about incorrect adjustment of the SO2 channel.
II. Technical specifications of the sulfur dioxide channel of the SOH-A2 sensor:
Resolution: 0.05ppm
Response time: t90 (seconds) <15
Measurement range: 20 ppm
Zero current: <0.1ppm
Sensitivity: 160-250 nA/ppm, 10ppm SO2
Linearity: ND, 0-10ppm SO2 linear
Overload range: 50ppm / concentration of stable response gas pulse
III. Technical specifications of the hydrogen sulfide channel of the SOH-A2 sensor:
Resolution: <0.1ppm
Response time t90 (seconds) <25
Measurement range: 200 ppm
Zero current: 0~-0.2ppm
Sensitivity: 450-900 nA/ppm, 20ppm H2S
Linearity: ND, 0-20ppm linear
Overload range: 500ppm / concentration of stable response gas pulse
IV.SOH-A2 sensorSpecifications for the SO2 channel
V.SOH-A2 sensorSpecifications for the H2S channel
