Endress+Hauser SS2000XP, Руководство по эксплуатации

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Hauser B
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1
Appendix B: Maintenance and
Troubleshooting
This section presents recommendations and solutions to common problems,
such as "Gas Leaks" , "Contamination" , "Excessive Sampling Gas
Temperatures and Pressures" , and "Electrical Noise" . If your analyzer
does not appear to be hampered by one of these related problems, direct
questions to your "Service" .
Gas Leaks
Probably the most common cause of erroneous measurements is outside air
leaking into the sample supply line. Hauser recommends periodically
testing the supply lines, especially if the analyzer has been relocated, replaced
or returned to the factory for service, and the sample lines have been
reconnected.
Contamination
Contamination and long exposure to high humidity are valid reasons for
periodically cleaning the gas sampling lines. Contamination in the gas sampling
lines can potentially find its way to the sample cell and deposit on the optics or
interfere with the measurement in some other way. Although the analyzer is
designed to withstand some contamination, it is recommended to always keep
the sampling lines as contamination free as possible. If mirror contamination
is suspected, see “Cleaning the Mirrors” on page B - 2.
To keep the sampling lines clean
1. Make sure that a membrane separator filter (included with most
systems) is installed ahead of the analyzer and operating normally.
Replace the membrane if necessary.
Do not use plastic tubing of any kind for sample lines. Plastic
tubing is permeable to moisture and other substances which can
contaminate the sample stream. Using 1/4 in. O.D x 0.035 in. wall
thickness, seamless stainless steel tubing is recommended.
Process samples may contain hazardous material in potentially
flammable and/or toxic concentrations. Personnel should have a
thorough knowledge and understanding of the physical properties
and safety precautions for the sample contents before operating
the SCS.
If liquid enters the cell and accumulates on the internal optics, a
Power Fail Error will result.