Oxygen Sample Systems - GE Moisture Image Series 1 Startup Manual

April 2004
Oxygen Sample
Systems
1-10
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Oxygen sample systems are required and can be ordered from GE
Panametrics for bench or wall mounting. You can also build your
own sample system by using the following guidelines.
IMPORTANT: The GE Panametrics warranty will be voided if the
sample system does not have a relief valve.
The basic sample system requirements are as follows (see Figure 1-4
on page 1-11):
1. The oxygen cell requires a sample gas flow of 2.0 to 2.5 SCFH.
2. The sample gas pressure in the cell must be between 0.0 and
1.0 psig. The pressure must not exceed 1.0 psig.
3. A 10 psig pressure relief valve installed upstream of the oxygen
cell is required to prevent over-pressure.
4. A flow meter is required to measure the flow.
5. A pressure gage is required to measure the pressure.
6. A flow regulating or needle valve is required to regulate flow and
should be located upstream of the cell.
7. A pressure regulator is required for sample gas supplies of 50 psig
or greater.
If a sample pump is required to draw a sample to the oxygen cell, the
pump should be installed downstream of the oxygen cell. This will
also require you to install a vacuum relief valve set at 1.0 psig
between the oxygen cell and the pump.
Installation