Trace Oxygen Analyzer | Installation 3 | |
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is keyed to fit only one way into the receptacle. Do not force it in. The other end of the cable is made of four separate wires. These should be connected to the terminal strip on the analysis unit as follows:
Red: | #1 |
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Black: | #2 |
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Green: | #3} | The green and white connectors can be |
White: | #4 | interchanged, but be consistent. |
Refer to the Final Assembly, Dwg.
3.4Gas Connections
Gas connection instructions depend on the specific External Probe used and any special requirements of the process being monitored.
The standard Model 3190 External Probe has inlet and outlet fixtures 
only. Calibration gasses must be tee'd into the sample inlet through appropri- 
ate valves. ¼ inch tube fittings are used. For metric installations, ¼ inch to 6 mm adapters are supplied.
In general, sample flow and pressure must not create significant backpressure past the sensor. For the standard probe, 2 scfh is the nominal recommended flowrate.
The pressure required will depend on the sampling system. When venting into a constant pressure, such as the atmosphere, controlling input pressure is simple. If you are venting into a system of varying pressure, then some form of pressure regulation is required.
3.5Installation Checklist
Before connecting the instrument to the power source and turning it on, make sure you have:
•Correctly installed the Sample and Exhaust gas lines
•Opened the isolation valves
•Checked for leaks
•Set the sample pressure to
Once the above checks have been made, you can connect to the power source. The instrument is now ready for operation.
Teledyne Analytical Instruments |