TELEDYNE API T200U NOy, Operator'S Manual

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Model T200U NOy Option Manual Addendum
07303E DCN7996 25
Figure 3. Replacing the Particulate Filter
6.3 Checking Analyzer Flow Rate
The External Pump is capable of maintaining the analyzer reaction cell pressure at
less than 5.0 In-Hg-A. If a higher pressure is noted, the Pump may need servicing.
Check the Pump and pneumatic system for leaks or rebuild the Pump.
CAUTION!
Never operate the analyzer without the ozone destruct component properly
seated and connected within the pneumatic path. The ozone destruct, which is
heated, is integrated into a metal enclosure, at the exhaust of the reaction cell,
inside the instrument.
The sample flow as measured at ports NO IN (1) and NOy IN (2) at the rear of the
analyzer should be 1000 ± 100 cc/min.
See Figure 1 for component locations.