Teledyne T802 - page 51

Teledyne API T802 Paramagnetic O2 Analyzer Operation Manual
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3.3.2.6. CALIBRATION GAS SOURCES
The source of calibration gas is also attached to the SAMPLE inlet, but only
when a calibration operation is actually being performed.
Note Zero air and span gas flows should be supplied in excess of the 120 cm3/min
demand of the analyzer.
3.3.2.7. INPUT GAS VENTING
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
3.3.2.8. EXHAUST OUTLET
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.
07275B DCN6418