ENMET SPECTRUM ON-LINE - Manual (Page 23)

Spectrum ON-LINE ENMET Corporation
19
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