Maintenance Procedures; Replacing The Sample Particulate Filter; Figure 5-6. Replacing The Particulate Filter - Teledyne T400 User Manual

5.6

MAINTENANCE PROCEDURES

The following procedures are to be performed periodically as part of the standard
maintenance of the T400.
5.6.1 R
EPLACING THE
The particulate filter should be inspected often for signs of plugging or contamination.
We recommend that the filter and the wetted surfaces of the filter housing be handled as
little as possible when you change the filter. Do not touch any part of the housing, filter
element, PTFE retaining ring, glass cover and the o-ring with bare hands; rather, use
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 T400's hinged front panel and unscrew the knurled retaining ring on the
3. Carefully remove the retaining ring, PTFE o-ring, glass filter cover and filter element.
4. Replace the filter, being careful that the element is fully seated and centered in the
5. Re-install the PTFE o-ring (with the notches up), the glass cover, then screw on the
6. Re-start the Analyzer.
083730400A DCN8130
S P
AMPLE ARTICULATE
filter assembly.

Figure 5-6. Replacing the Particulate Filter

bottom of the holder.
retaining ring and hand tighten. Inspect the seal between the edge of filter and the
o-ring to assure a proper seal.
Teledyne API – Model T400 O
F
ILTER
Analyzer
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