ENMET SPECTRUM - Manual (Page 25)

SPECTRUM Series ENMET Corporation
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SPECTRUM Series for Ozone (3E 1 sensor)
The following gases cause a reading:
Interferant
Gas/Vapor Interferant Concentration
in ppm Instrument Reading
in ppm
chlorine 1 0.80
fluorine 100ppb 0.07
germane 1 1
nitrogen dioxide 1 0.09
The following gases or vapors have been tested and do not cause a reading:
Interferant Gas/Vapor Concentration in ppm
hydrogen sulfide 1
sulfur dioxide 2
phosphine 100 ppb
carbon monoxide 300
carbon dioxide 5000
nitrogen 100%
nitrogen monoxide 10
hydrocarbons % range
hydrogen 1000
hydrogen cyanide 10
ammonia 10
hydrogen fluoride 3.8
hydrochloric acid 10
SPECTRUM Series for Hydrogen Cyanide (2E 30 sensor)
The following gases cause a reading:
Interferant
Gas/Vapor Interferant Concentration
in ppm Instrument Reading
in ppm
hydrogen sulfide 15 40 †
chlorine 5 -1
nitrogen dioxide 100 -40 †
The following gases or vapors have been tested and do not cause a reading:
Interferant Gas/Vapor Concentration in ppm
hydrogen chloride 10*
methane 2000
carbon monoxide 300
carbon dioxide 10 %
freon 12 5000
petrol 300
sulfur dioxide 50*
nitrogen 100 %
nitrogen monoxide 100
cholrinated hydrocarbons <200
† Long term exposure may destroy the sensor.
*with onboard filter; continuous high level exposure may reduce the filter efficiency