213 • Appendix D: Interference Information GX-3R Pro Operator’s Manual
ESR-B134-NH3, NH
3
Detection
Table 20: Interference Chart for ESR-B134-NH3, NH
3
Detection
Gas
Chemical
Formula
Concentration
Indication
Val u e
Carbon Dioxide CO
2
1 vol% 0.3 ppm
Carbon Monoxide CO 50 ppm 0.7 ppm
Chlorine Cl
2
0.8 ppm 1.1 ppm
Ethanol C
2
H
5
OH 0.83 vol% 5.4 ppm
Hydrogen H
2
500 ppm 0.7 ppm
Hydrogen Chloride HCl 8 ppm 0.5 ppm
Hydrogen Cyanide HCN 8.0 ppm 2.5 ppm
Hydrogen Sulfide H
2
S 30 ppm 0.6 ppm
Isobutane C
4
H
10
0.89 vol% 0.9 ppm
Methane CH
4
2.21 vol% 1.0 ppm
Nitric Oxide NO 101 ppm 0.8 ppm
Nitrogen Dioxide NO
2
99 ppm -23.9 ppm
Oxygen O
2
100 vol% 0.4 ppm
Ozone O
3
0.3 ppm 8.5 ppm
Phosphine PH
3
0.5 ppm 1.0 ppm
Sulfur Dioxide SO
2
30 ppm 1.0 ppm
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