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SO2

SO2 - General Information, SO2-Sensors & Relevant Applications
  • Sulfur dioxide

Table of Contents

General information on SO2 / Sulfur dioxide

Sulfur dioxide (SO2) is a colorless, mucous membrane-irritating, pungent-smelling and sour-tasting toxic gas. It is very soluble in water and forms sulfurous acid with water to a very small extent. It is formed, among other things, during the combustion of sulfur-containing fossil fuels such as coal or petroleum products. As a result, it contributes significantly to air pollution. Various processes exist for flue gas desulfurization. In addition, sulfur dioxide is found in the vicinity of active volcanoes.

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Gas sensors from Wi.Tec-Sensorik for the precise measurement of SO2

Overview Products and Measurement Ranges

  Measuring range (*)
100
Vol.%		 50
Vol.%		 30
Vol.%		 20
Vol.%		 10
Vol.%		 5
Vol.%		 1
Vol.%		 5,000
ppm		 2,000
ppm		 1,000
ppm		 500
ppm		 300
ppm		 100
ppm		 50
ppm		 10
ppm		 1
ppm
Kombi.sens
ULTRA.sens AK100
ULTRA.sens AK100 TBH (UVRAS)
ULTRA.sens AK100 H2S
ULTRA.sens AK100 TBH
ULTRA.sens AK250
ULTRA.sens AK550
ULTRA.sens processline AK25
ULTRA.sens processline NOx / SO2-AK50 TBH piped 
(*) Full scale value (F.S.)
For other measuring ranges please refer to our further datasheets

Product Previews

Some relevant Applications to SO2

AdobeStock 433400747

Gas Insulated Switchgear Monitoring

  • Detection limit (3 sigma) < 0,1 Vol.% 
  • Linearity error < 0,5 % FS (Fullscale) 
  • Including Temperature-compensation 5 - 45 °C 
  • Including pressure compensation 600 - 1200 mbar 
  • Ready to use module 
INFRA.sens® AK2/μP compact // INFRA.sens® AK20G compact  To save the atmosphere – for quality and leakage measurement In gas-insulated high- and medium-voltage switchgear, sulfur hexafluride (SF6) is used as an …
Read MoreGas Insulated Switchgear Monitoring
Elemental Analysis

Elemental Analysis

  • Area saving solution for 2 gases with best technology selection (NDUV & NDIR)
  • Data rate of 100ms possible
  • Correction algorithm for SO2 to CO2 and vice versa
  • Long lifetime of radiation source
  • SO2 measurement possible with NDIR as well as NDUV
ULTRA.sens® AK100 // INFRA.sens® AK250G compact  High precision leads to higher quality  In chemistry, the term quantitative elemental analysis is used to describe the quantitative determination of the elements carbon …
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Continous Emission Monitoring (CEM)

Continous Emission Monitoring (CEM)

  • Solution for stationary, mobile and maritime analyzer
  • Vibration tested according to DIN EN60068-2-64(04/2009)
ULTRA.sens® NOx / SO2-AK100 TBH  Environmental Monitoring must not be expensive  In combustion processes, for the generation of electrical energy and heat, a variety of gaseous components are produced, such …
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Customer Specific Projects

Customer Specific Projects

  • You have a measurement task that goes beyond the usual standards and are looking for a competent partner?
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  • The employees of Wi.Tec-Sensorik GmbH have extensive expertise in the field of industrial gas measurement technology and sensor signal processing.
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