Application Range
Standard Measuring Range: 2 to 60 ppm / 25 to 300 ppm
Number of Strokes (n): 10 / 2
Time for Measurement: approx. 4 min / 50 sec.
Standard Deviation: ±10 to 15%
Color Change: white -› brown ish
Ambient Operating Conditions
Temperature: 0 to 50°C
Absolute Humidity: 2 to 20 mg H2O / L
Reaction Principle
5 CO + I2O5 -> I2 + 5 CO2
Cross Sensitivity
The following have no influence on the display of 10 ppm CO
(respectively):
100 ppm hydrogen sulphide
50 ppm sulphur dioxide
15 ppm nitrogen dioxide
10 ppm CO + 200 ppm octane: display approx. 30 ppm
10 ppm CO + 40 ppm butadiene: display approx. 15 ppm
10 ppm CO + 30 (100) ppm benzene: display approx. 15(20 - 30) ppm
10 ppm CO + 40 ppm chloroform: display approx. 60 ppm
10 (60) ppm acetylene: display approx. 5 (15) ppm
With the insertion of a carbon attachment tube (CH 24101),
10 ppm CO can still be measured in the presence of 10000 ppm n-octane