PN 903-8797, Rev A
Filterblock Maintenance
The Membrane Filters in the Filterblock Assembly should be inspected periodi-
cally for signs of contamination or damage.
Clean the Filterblock:
• If alarms that indicate the optical paths show signs of contamination are
displayed, such as:
- f H2O Optics (SCode 32)
- f HC Optics (SCode 64)
• If there is evidence of baseline deviations (see “Checking and Recording
the Baseline Settings” in the Diagnostic Flowcharts section of this chapter).
• Each time you clean the Measuring Cell.
• If the internal parts are severely contaminated, more frequent cleaning
may be required.
Replace parts in the Filterblock:
• If, while cleaning the Filterblock, the Membrane Filters are found to be
damaged (are creased, have holes, or are transparent) or severely contami-
nated (with liquids, oils, or waxes).
See “Spare Part Lists”
in this chapter for ordering
numbers.
RUN Mode
Stat\HistorySCode
4-22 | 241CE II Hydrocarbon Dewpoint Analyzer
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