OCX 8800
Instruction Manual
Figure 2-7. Piping Arrangement, Blowback with Autocalibration
Cal Gas Flow Meter |
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( | 7 scfh, | ( |
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| Tube Unions) | |
Recommended |
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Check
Valve
Check Valve
Sensor
Housing
CAUTION
Pressure regulator with 1/8” inlet port is factory set for 35 or 45 psig. Regulator with 1/4” inlet port is factory set for 55 psig. If regulators are not installed in correct locations, the OCX 8800 will not work.
Eductor Air In
Reference
Air In
Dilution Air In
Instrument Air
Electronics
Housing
Vacuum Gage
Dilution
Air Flow Meter
0.1 scfh |
CAL Gas Out
*Normally | *Normally |
Open | Closed |
Solenoid | Solenoid |
Valve | Valve |
Blowback Valve,
Air Operated
Pressure Regulator/Filter |
35 psig - General Purpose |
45 psig - Hazardous Area |
Regulators 
2 | 2 |
LOO | HIO |
CO
*NOTE: During blowback operation, states of both solenoid valves change.
NOTE: Wall mount the
Pressure
Regulator/Filter
55 psig
Instrument Air Supply
38850004
