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M400E Ozone Analyzer Operator’s Manual Getting Started
3.4.3. PNEUMATIC SETUP FOR THE M400E ANALYZER WITH INTERNAL
ZERO/SPAN OPTION (IZS)
Figure 3-11: Gas Line Connections for the M400E Analyzer with IZS Option (OPT-51A)
For the Model 400E photometric ozone analyzer with the optional internal zero air generator and span valve
(IZS), attach the following pneumatic lines:
1. 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
2. ZERO AIR SOURCE: Attach a gas line from the source of zero air (e.g. a Teledyne Instruments 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
3. 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.
04315 Rev. C1 23