Installation 4.0 – Teledyne 275R - Portable turbine generator purge gas analyzer User Manual

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4.3

TELEDYNE ANALYTICAL INSTRUMENTS

Installation 4.0

4.4 Pressure Regulation

The following precautions must be observed for the incoming gas

lines:

a) The incoming gas line should be equipped with a pressure

regulator.

b) The sample line pressure regulator should be installed as close

to the sample point as possible, to minimize sample line lag
time.

c) Sample pressure should be set somewhere between 5 and 30

5 and 30

psig

psig; 10 psig is nominal.

d) To minimize flowrate adjustments, the pressure regulators on

the supporting gas supply cylinders should be adjusted to
provide the same output pressure as the sample line regulator.

NOTE:

NOTE: When installing pressure regulators on supply cylinders, open the

When installing pressure regulators on supply cylinders, open the

When installing pressure regulators on supply cylinders, open the
cylinder valves slightly so that gas is flowing during installation.

cylinder valves slightly so that gas is flowing during installation.

Using this procedure will eliminate the diffusion of air trapped during

assembly back into the cylinder, the most common cause of standardization
gas contamination.