SO₂ – General information, SO₂–Sensors & relevant applications

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.

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

Overview Products and Measurement Ranges

Product Previews

• Gas Sensor, OEM Product

ULTRA.sens AK100

• O3SO2NO2

• High dynamic range
• Rugged sensor design
• Gas tight O-ring seal
• Low power consumption <1W @ 24V
• Different Interfaces (RS232, CANbus)

Read MoreULTRA.sens AK100

• Gas Sensor, OEM Product

ULTRA.sens AK100 H2S

• SO2H2S

• High dynamic range
• Fast response time
• Applicable for continuous measurements
• Different Interfaces (RS232, CANbus)

Read MoreULTRA.sens AK100 H2S

• Gas Sensor, OEM Product

ULTRA.sens AK100 TBH

• SO2NO2NO

• Simultaneous NO₂ and SO₂ analysis
• Temperature controlled to 50°C
• Easy integration via mounting bracket
• Fast response time
• No influence of gas humidity

Read MoreULTRA.sens AK100 TBH

• Gas Sensor, OEM Product

ULTRA.sens AK100 TBH (UVRAS)

• SO2NO2NO

• Simultaneous NO_x and SO₂ analysis
• Temperature controlled to 50°C
• Fast response time
• No influence of gas humidity
• No NO_x converter required

Read MoreULTRA.sens AK100 TBH (UVRAS)

• Gas Sensor, OEM Product

ULTRA.sens AK250

• O3Cl2SO2NO2

• High dynamic range
• Rugged sensor design
• Gas tight O-ring seal
• Low power consumption <1W @ 24V
• Different Interfaces (RS232, CANbus)

Read MoreULTRA.sens AK250

• Gas Sensor, OEM Product

ULTRA.sens AK550

• O3SO2NO2

Read MoreULTRA.sens AK550

• Gas Sensor, OEM Product

ULTRA.sens processline AK25

• Cl2SO2

• Resistant to corrosive gases
• Fast response time
• Applicable for continuous measurements

Read MoreULTRA.sens processline AK25

• Gas Sensor, OEM Product

ULTRA.sens processline NOx / SO2-AK50 TBH piped 

• SO2NO2NO

Read MoreULTRA.sens processline NOx / SO2-AK50 TBH piped 

• Gas Sensor, OEM Product

Kombi.sens

• CO2CON2OCnHmCH4CF4SF6H2OO3Cl2SO2H2SNO2

• Optimal adaptation to the measurement task
• Combination of IR and UV technology
• High accuracy
• Low power consumption
• Compact size
• Space-saving design
• Up to 3 gases + O₂
• Cross-charging among each other possible

Read MoreKombi.sens

Some relevant Applications to SO₂

• Application

Gas Insulated Switchgear Monitoring

• CO2COCF4SF6SO2

• 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 

Read MoreGas Insulated Switchgear Monitoring

• CF4 Sensor, CO Sensor, CO2 Sensor, Monitoring of gas-insulated switchgear, SF6 Sensor, SO2 Sensor

• Application

Elemental Analysis

• CO2COSO2SO2

• 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

Read MoreElemental Analysis

• CO2 Sensor, CO Sensor, Elemental Analysis, SO2 Sensor

• Application

Continous Emission Monitoring (CEM)

• CO2CON2OSO2NOx

• Solution for stationary, mobile and maritime analyzer
• Vibration tested according to DIN EN60068-2-64(04/2009)

Read MoreContinous Emission Monitoring (CEM)

• CEMS, CO Sensor, CO2 Sensor, Continuous emission monitoring, N2O Sensor, NOx Sensor, SO2 Sensor

• Application

Customer Specific Projects

• CO2CON2OCnHmCH4CF4SF6H2OSO2O3Cl2SO2H2SNOxNO2NO

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

Your requirement is our challenge – You have a measuring task beyond the usual standards and are looking for a competent partner? Please contact us. Your measurement task is our …

Read MoreCustomer Specific Projects

• Costumer specific projects, CF4 Sensor, CH4 Sensor, Cl2 Sensor, CnHm Sensor, CO Sensor, CO2 Sensor, H2O Sensor, H2S Sensor, N2O Sensor, NDIR Sensor, NDUV Sensor, NO Sensor, NO2 Sensor, Non OEM, NOx Sensor, SO2 Sensor