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Install
April 2023
2. Refer to
3. Connect the O
4. Connect the CO high gas to the CAL GAS HI COe inlet fitting. Install a shutoff valve
5. Connect the CAL GAS outlet fitting of the electronics housing to the inlet port of the
Figure 2-8: Pneumatic installation, Rosemount OCX8800 with reference air set,
solenoids, and autocalibration, without 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 to 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-reg. 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
38
Figure
2-8. Connect the O
on the electronics housing. Install a shutoff valve and pressure regulator with gauge
in the O
low supply line, as shown.
2
high gas source to the CAL GAS HI O
2
valve and pressure regulator with gauge in the O
and pressure regulator with gauge in the CO high supply line.
CAL GAS flow meter. Install an air line between the flow meter outlet port and the
CAL GAS inlet fitting on the sensor housing.
hazardous areas
low gas source to the CAL GAS LO O
2
inlet fitting. Install a shutoff
2
high supply line.
2
Manual
00809-0500-4881
inlet fitting
2
Emerson.com/Rosemount
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