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Install
April 2023
Figure 2-9: Pneumatic installation, Rosemount OCX8800 with reference air set,
solenoids, and autocalibration, with COe zero function
A. Sensor housing
B. Eductor air in
C. Electronics housing
D. Calibration gas in
E. Reference air in
F. Dilution air in
G. Dilution air flow meter 0.1 scfh
H. Instrument air out
I. Calibration gas flow meter (7 scfh, 20-30 psig [1.4 to 2.1 barg] recommended)
J. Two-stage regulators
K. Instrument air supply
L. Pressure regulator/filter 35 psig (2.4 barg) for general purpose, 45 psig (3.1 barg) for
M. 2-in. pressure gauge, 0-60 psig (0 to 4.1 barg)
N. Combination filter-regulator, 0-60 psig (0 to 4.1 barg)
O. Flow meter, 1-10 scfh
P. Flow meter, 0.05-0.5 scfh
Q. Calibration gas out
Note
If instrument is to be used as the high O
gases must also be set to the same pressure.
40
hazardous areas
calibration gas, the low O
2
Manual
00809-0500-4881
and COe calibration
2
Emerson.com/Rosemount
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