Teledyne 6200A - Sulfides analyzer - Manual (Page 135)

TAI Model 6200A SO
2
Analyzer Operator Manual, 02164, Rev. G
8.2 Replacing the Sample Particulate Filter
The particulate filter should be inspected often for signs of plugging or contamination. It is also
common for dirt particles to absorb SO
2
, thus causing those readings to be lower than the actual
value. Very dirty filter can cause serious monitoring problem such as very slow and low
response, unable to span, and contamination of the analyzer. The particulate filter should be
changed at a minimum every 2 weeks. If instrument is operated under high dust environment,
then should replace filter more frequently.
To check and change the filter (refer Figure 8-1):
1. Fold down the 6200A front panel.
2. Locate the filter on the left side of the analyzer front panel and visually inspect the filter
through the glass window.
3. If the filter appears dirty, unscrew the hold-down ring, remove the Teflon o-ring and then the
filter.
4. Replace the filter, being careful that the element is fully seated in the bottom of the holder.
Replace the Teflon o-ring with notches upward, then screw on the hold-down ring and hand
tighten.
8-2