Teledyne T802 Operation Manual page 51

Teledyne API
3.3.2.6. CALIBRATION GAS SOURCES
Note
3.3.2.7. INPUT GAS VENTING
3.3.2.8. EXHAUST OUTLET
07275B DCN6418
The source of calibration gas is also attached to the SAMPLE inlet, but only
when a calibration operation is actually being performed.
Zero air and span gas flows should be supplied in excess of the 120 cm
demand of the analyzer.
The span gas, zero air supply and sample gas line MUST be vented (Figure 3-16)
for two reasons: in order to ensure that the gases input do not exceed the
maximum inlet pressure of the analyzer, and to prevent back diffusion and
pressure effects. These vents should be:

At least 0.2m long

No more than 2m long and

Vented outside the shelter or immediate area surrounding the instrument
Attach an exhaust line to the analyzer's EXHAUST outlet fitting. The exhaust
line should be:

PTEF tubing; minimum O.D ¼"

A maximum of 10 meters long

Vented outside the T802 analyzer's enclosure, preferably outside the shelter
or at least into a well-ventilated area.
T802 Paramagnetic O
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Analyzer Operation Manual
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