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Instruction Manual
IM-106-880C, OI
September 2009
2-21
Hazardous Area OCX 8800
Reference Air Set and Blowback Panels
An optional blowback panel is shown in Figure 1-9. Piping arrangement for
blowback panel without autocalibration without COe Zero Function is shown
in Figure 2-15. Piping arangement for blowback panel with autocalibration
without COe Zero Function is shown in Figure 2-16. Piping arrangement for
blowback panel with autocalibration with COe Zero Function is shown in
Figure 2-17.
Figure 2-15. Pneumatic Installation, Blowback Panel without Autocalibration without COe Zero Function
Check Valve
Electronics
Housing
Sensor
Housing
Dilution Air In
Reference Air In
CAL Gas In
2-Stage
Regulators
CO
HI O
2
LO O
2
Instrument Air
Instrument Air to Electronics
Actuating Air
Blowback
Control Air
Instrument
Air Supply
CAL Gas
In
Instrument
Air Out
Dilution
Air Out
Eductor Air In
CAL Gas
Out
Blowback
Air Out
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