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Getting Started Teledyne API – Model T400 Photometric Ozone Analyzer
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3.3.2.3. Pneumatic Setup for the T400 Analyzer with Internal Zero/Span Option (IZS)
Figure 3-19: Gas Line Connections for the T400 Analyzer with IZS Option (OPT-50G)
For the Model T400 photometric ozone analyzer with the optional internal zero air
generator and span valve (IZS), attach the following pneumatic lines:
SAMPLE GAS SOURCE:
Attach a sample inlet line to the sample inlet fitting.
Sample Gas pressure must equal ambient atmospheric pressure (1.0 psig)
In applications where the sample gas is received from a pressurized manifold, a
vent must be placed on the sample gas line. This vent line must be:
At least 0.2m long
No more than 2m long
Vented outside the shelter or immediate area surrounding the instrument
ZERO AIR SOURCE:
Attach a gas line from the source of zero air (e.g., a Teledyne API M701 zero air
Generator) to the DRY AIR inlet.
The gas from this line will be used internally as zero air and as source air for the
internal O
3
generator
EXHAUST OUTLET:
Attach an exhaust line to the EXHAUST outlet fitting.
The exhaust line should be a maximum of 10 meters of ¼” PTEF tubing.
Once the appropriate pneumatic connections have been made, check all pneumatic
fittings for leaks using the procedures defined in Section 11.3.4.
06870C DCN6332