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SPECTRUM Series ENMET Corporation

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

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