Emerson OCX 8800 Instruction Manual page 32

OCX 8800
Figure 2-6. Pneumatic
Installation, OCX with Reference
Air Set and Solenoids (with
Autocalibration)
2-12
CAL Gas
Flow Meter
(
7 scfh, 20-30 psig
Recommended
Eductor
Electronics
Housing
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 O
O inlet fitting on the electronics housing. Install a shutoff valve and
2
pressure regulator with gage in the O
3. Connect the O high gas source to the CAL GAS HI O2 inlet fitting.
2
Install a shutoff valve and pressure regulator with gage in the O
supply line.
Sensor
Housing
(
Reference
Air In
Air In
Dilution
Air In
Pressure Regulator/Filter
35 psig - General Purpose
45 psig - Hazardous Area
2-Stage
Regulators
low gas source to the CAL GAS LO
2
low supply line, as shown.
2
Instruction Manual
IM-106-880, Rev 1.0
January 2007
CAL Gas In
Dilution Air
Flow Meter
0.1 scfh
Instrument
Air Supply
high
2