RUN Mode
Stat\HistorySCode
See "Spare Part Lists"
in this chapter for ordering
numbers.
4-22 | 241CE II Hydrocarbon Dewpoint Analyzer
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).
PN 903-8797, Rev A