PN 9000-280-VE, Rev B
About the WDG-V UOP Analyzer
Designed for fast response in a wide range of flue gas applications, the analyz-
er mounts directly on the combustion process to provide continuous measure-
ment of oxygen.
A sample is drawn from the process stream by means of an air-operated
aspirator and is immediately returned to the process. A portion of this gas rises
past the oxygen measuring Cell and returns to the primary loop. All sample
wetted parts are heated to 200 °C to maintain the sample above the dewpoint
of the gas.
Follow these precautions when working on the analyzer:
Do not turn on the aspirator until the analyzer has been turned on
and is hot – preferably 24 hours. Also, if you turn off the analyzer or
the process is shut down, turn off the aspirator air to avoid plugging
problems.
Remove AC power from the analyzer and allow it to cool for at least
90 minutes before performing any maintenance or troubleshooting
activities.
The outside of the analyzer cover and all analyzer assembly compo-
nents are hot during normal operation (up to 260 °C/500 °F inside
the cover). Allow analyzer components to cool for at least 90 minutes
before working inside the analyzer. Use caution and wear appropriate
gloves when handling components or when touching the analyzer
cover.
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WDG-V UOP ATEX-IECEx Analyzer
