GE Baker Hughes oxy.IQ, Руководство пользователя

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Chapter 1. Features and Capabilities
4 oxy.IQ User’s Manual
1.5 Sample Systems
In addition to the standard features and options, GE offers a full line
of sample handling systems for a variety of applications. If needed,
GE can design and build a sample conditioning system to meet
unique application requirements. Please contact GE for details.
Table 1 below lists some background gases that can interfere with the
oxygen sensor.
Table 1: Oxygen Sensor Interference Gases
Gas
OX-1 & 5 ppm OX-2 ppm OX-3 % OX-4 %
Cont. Cont. Cont. Int. (1) Cont. Int.
H
2
S <5 ppm <10 ppm 0.0005 % 0.01 % 0.001 % 0.1 %
SO
3
<10 ppm <10 ppm 0.01 % 0.1 % 0.01 % 0.1 %
SO
2
<10 ppm (3) 0.01 % 0.1 % (3) (3)
HCl <1000 ppm (3) 0.1 % 1.0 % (3) (3)
HCN <1000 ppm (3) 0.1 % 1.0 % (3) (3)
CO
2
<1000 ppm (3) 0.1 % 20 & (3) (3)
NO
2
(2) (2) (2) (2) (2) (2)
Cl
2
(2) (2) (2) (2) (2) (2)
Cont. = Continuous, Int. = Intermittent
(1) Recommended maximum exposure 30 minutes, followed by flushing
with ambient air for an equal period.
(2) Minimal effect on sensor performance, but produces signal interference
of 1:2 ratio for ppm levels only (e.g., 100 ppm NO
2
looks like 200 ppm
O2).
(3) Minimal effect on sensor performance