Instruction Manual
IM-106-880, Rev 2.1
April 2017
OCX 8800
Section 2
Installation
Mechanical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-1
Electrical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-8
Pneumatic Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-13
Initial Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-24
MECHANICAL
INSTALLATION
Selecting Location
1. The location of the OCX 8800 in the stack or flue is most important for
maximum accuracy in the oxygen analyzing process. The probe must
be positioned so the gas it measures is representative of the process.
Best results are normally obtained if the transmitter is positioned near
the center of the duct (40-60% insertion). Longer ducts may require
several transmitters since the oxygen and combustibles can vary due to
stratification. A point too near the wall of the duct or the inside radius of
a bend, may not provide a representative sample because of the very
low flow conditions. The sensing point should be selected so the
process gas temperature falls within the range of probe material used.
Figure 2-1 through Figure 2-5 provide mechanical installation
references. The ambient temperature inside the electronics housing
must not exceed 185°F (85°C).
2. Check the flue or stack for holes and air leakage. The presence of this
condition will substantially affect the accuracy of the oxygen and
combustibles readings. Therefore, either make the necessary repairs or
install the transmitter up stream of any leakage.
3. Ensure the area is clear of internal and external obstructions that will
interfere with installation and maintenance access to the unit. Allow
adequate clearance for the removal of the OCX 8800.
Before installing this equipment, read the "Safety instructions for the wiring and installation
of this apparatus" in Appendix A: Safety Data. Failure to follow the safety instructions could
result in serious injury or death.
The OCX88A can be installed in general purpose areas only. Do not install the OCX88A in
hazardous areas.
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