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Drager Sulphur Dioxide 2/a-D (0.5-20 ppm) Diffusion Tube

PRODUCT CODE:
8101091

Please note: this product has been discontinued with no replacement.

Please note this product is currently discontinued.

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Product description

Drager Sulphur Dioxide 2/a-D (0.5-20 ppm) Diffusion Tube

Please note: this product has been discontinued with no replacement.

Drager Sulphur Dioxide 2/a-D (Measuring: 0.5 to 20 ppm) Diffusion Tube - Max. Oper. Time: 4 hrs.

Note: This product has a shelf life of 2 years.

Application Range  
Standard Range Measurement Time
5 to 150 ppm 1 h
2.5 to 75 ppm 2 h
1.3 to 38 ppm

4 h
0.7 to 19 ppm 8 h
Standard Deviation ± 20 to 25 %
Color Change blue violet - light yellow

 

Ambient Operating Conditions

Temperature 10 to 30 °C
Absolute Humidity 1 to 15 mg H2O / L

 

Reaction Principle

SO2 + pH Indicator  light yellow reaction product

Cross Sensitivity

It is impossible to measure sulfur dioxide in the presence of other acidic substances.

During a 6-hour measurement, 10 ppm hydrochloric acid produces a pink color up to 25 ppm x h. During a 4-hour measurement, 20 ppm acetic acid produces a yellow color up to 60 ppm x h.  Nitrogen dioxide and chlorine also have an influence on the indication.


Specification
Application Range  
Standard Range Measurement Time
5 to 150 ppm 1 h
2.5 to 75 ppm 2 h
1.3 to 38 ppm

4 h
0.7 to 19 ppm 8 h
Standard Deviation ± 20 to 25 %
Color Change blue violet --> light yellow
   
Ambient Operating Conditions
Temperature 10 to 30 °C
Absolute Humidity 1 to 15 mg H2O / L
   
Reaction Principle
SO2 + pH Indicator  light yellow reaction product
   
Cross Sensitivity

It is impossible to measure sulfur dioxide in the presence of other acidic substances.

During a 6-hour measurement, 10 ppm hydrochloric acid produces a pink color up to 25 ppm x h. During a 4-hour measurement, 20 ppm acetic acid produces a yellow color up to 60 ppm x h.  Nitrogen dioxide and chlorine also have an influence on the indication.

 

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