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Teledyne API - Model T200H/T200M Operation Manual
6.3.2. CHANGING THE O
Note
07270D DCN7141
DRYER PARTICULATE FILTER
3
The air for the O
generator passes through a permeation dryer, which is equipped with a
3
small particulate filter at its inlet. This filter prevents dust from entering the dryer and
degrading the dryer's performance over time. To change the filter according to the
service interval in Table 6-1:
1. Check and write down the average RCEL pressure and the OZONE flow values.
2. Turn off the analyzer, unplug the power cord and remove the cover.
3. Unscrew the nut around the port of the filter using 5/8" and 9/16" wrenches and by
holding the actual fitting body steady with a 7/16" wrench.
Make sure to use proper wrenches and to not turn the fitting against the
permeation dryer. This may loosen the inner tubing and cause large leaks.
4. Take off the old filter element and replace it with a suitable equivalent
(TAPI part# FL-3).
Figure 6-2:
Particle Filter on O
5. Holding the fitting steady with a 5/8" wrench, tighten the nut with your hands. If
necessary use a second wrench but do not over-tighten the nut.
6. Replace the cover, plug in the power cord and restart the analyzer.
7. Check the O
flow rate: it should be around 250 cm³/min ± 15.
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8. Check the RCEL pressure: it should be the same value as before.
RISK OF SIGNIFICANT LEAK
Supply Air Dryer
3
Instrument Maintenance
207
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