511391 201T User Manual 17
2/07 Honeywell
Detection Range and Alarm Levels
Detection Range and Alarm Levels
A different alarm level may have been programmed in order to satisfy
the constraint of a particular application.
Gas Detected Range Alarm A Alarm B AlarmC
C
2
H
4
O
Ethylene oxide 0-20.4 ppm 1.0 ppm 5.0 ppm 9.0 ppm
CL
2
Chlorine 0-15.3 ppm 0.5 ppm 1.0 ppm 13.0 ppm
CO50 Carbon monoxide 0-51 ppm 9 ppm 15 ppm 45 ppm
CO100 Carbon monoxide 0-102 ppm 25 ppm 45 ppm 90 ppm
CO250 Carbon monoxide 0-255 ppm 25 ppm 200 ppm 225 ppm
CO500 Carbon monoxide 0-510 ppm 50 ppm 250 ppm 450 ppm
CO1000 Carbon monoxide 0-1020 ppm 100 ppm 500 ppm 900 ppm
H
2
S
Hydrogen sulfide 0-51 ppm 10 ppm 15 ppm 45 ppm
H
2
Hydrogen 0-2.55% Vol. 1.00% Vol. 2.00% Vol. 2.25% Vol.
HCL Hydrogen chloride 0-51 ppm 3 ppm 4 ppm 45 ppm
HCN Hydrogen cyanide 0-51 ppm 5 ppm 9 ppm 45 ppm
NO Nitrogen monoxide 0-102 ppm 25 ppm 35 ppm 90 ppm
NO
2
Nitrogen dioxide 0-10.2 ppm 0.72 ppm 2 ppm 9 ppm
O2 Oxygen 0-25.5% Vol. 19.5% Vol. 22.0% Vol. 23.0% Vol.
SO
2
Sulfur dioxide 0-10.2 ppm 2 ppm 5 ppm 9 ppm
R-11
Refrigerant Q2 0-1020 ppm 500 ppm 750 ppm 900 ppm
R-12
R-22
R134A
COMB Combustibles 0-102% LEL 25% LEL 50% LEL 90% LEL
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