Teledyne T400 User Manual page 44

Z A
ERO IR
Attach a gas line from the source of zero air (e.g. a Teledyne API M701 zero air
Generator) to the ZERO AIR inlet.
• Zero air can be supplied by the API M701 zero air generator.
• A restrictor is required to regulate the gas flow at 2x the gas flow of the analyzer.
V
ENTING
In order to prevent back diffusion and pressure effects, both the span gas and zero air
supply lines should be:
• Vented outside the enclosure
Not less than 2 meters in length
•
Not greater than 10 meters in length
•
E
XHAUST
Attach an exhaust line to the EXHAUST outlet fitting. The exhaust line should be:
¼" PTFE tubing
•
A maximum of 10 meters long
•
• Vented outside the T400 analyzer's enclosure
Once the appropriate pneumatic connections have been made, check all pneumatic
fittings for leaks using the procedures defined in Section 5.6.5).
42
O
UTLET
CAUTION – Ozone Exposure Risk
Venting should be outside the shelter or immediate area surrounding
the instrument and conform to all safety requirements regarding
exposure to O .
3
Teledyne API – Model T400 O Analyzer 083730400A DCN8130
3