OCX 8800

Instruction Manual

IM-106-880, Rev 1.0 January 2007

Figure 2-6. Pneumatic Installation, OCX with Reference Air Set and Solenoids (with Autocalibration)

Sensor

Housing

 

CAL Gas

 

 

(

Flow Meter

 

CAL Gas In

7 scfh, 20-30 psig

Recommended

(

Reference

 

 

 

Air In

Eductor

Air In

Dilution

Air In

InstrumentAirOut

CALGasOut

Dilution Air

Flow Meter

0.1 scfh

Electronics

Housing

Instrument Air Supply

Pressure Regulator/Filter 35 psig - General Purpose 45 psig - Hazardous Area

2-Stage

Regulators

2

LO O

2

 

HIO

CO

37390012

Reference Air Set and Solenoids Option

When the reference air set and test gas solenoids are included with your OCX 8800, use the following procedure to install the pneumatic system components.

1.Install the reference air set according to the instructions in Reference Air Set Option, steps 1 through 3.

2.Refer to Figure 2-6. Connect the O2 low gas source to the CAL GAS LO O2 inlet fitting on the electronics housing. Install a shutoff valve and pressure regulator with gage in the O2 low supply line, as shown.

3.Connect the O2 high gas source to the CAL GAS HI O2 inlet fitting. Install a shutoff valve and pressure regulator with gage in the O2 high supply line.

2-12

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Emerson OCX 8800 instruction manual Reference Air Set and Solenoids Option