Teledyne T200, Руководство по эксплуатации, Страница: 212 / 425

Instrument Maintenance Teledyne API
– T200 NO/NO
2
/NO
X
Analyzer Operation Manual
210
11.3. MAINTENANCE PROCEDURES
Perform the following procedures as standard maintenance per Table 11-1.
11.3.1. REPLACING THE SAMPLE PARTICULATE FILTER
Inspect the particulate filter often for signs of plugging or contamination. Do not touch
any part of the housing, filter element, PTFE retaining ring, glass cover and the o-ring
with your bare hands: use gloves or PTFE coated tweezers or similar handling to avoid
contamination of the sample filter assembly.
To change the filter:
1. Turn OFF the analyzer to prevent drawing debris into the instrument.
2. Open the T200’s hinged front panel and unscrew the retaining ring on the filter
assembly.
RETAINING RING
PTFE O-RING
HOLDER
Figure 11-1 Replacing the Particulate Filter
3. Carefully remove the retaining ring, PTFE o-ring, glass window and filter element.
4. Replace the filter, being careful that the element is fully seated and centered in the
bottom of the holder.
5. Reinstall the PTFE o-ring with the notches up; the glass window, then screw on the
retaining ring and hand tighten. Inspect the seal between the edge of filter and the
o-ring to assure a proper seal.
6. Restart the Analyzer.
06858E DCN7057