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PROPER FIELD TECHNIQUE WITH SIGHT GLASSES AND THE IMPORTANCE OF FIELD OBSERVATION

Andrew W. Sloley

VECO USA, Inc. (current affiliation)
1313 Bay St
Bellingham, WA 98229 360-676-1500

Published in
Hydrocarbon Online: Tech Talk
7 February 2001

Abstract copyright Andrew W. Sloley
2001
All rights reserved

Sight glasses are an invaluable tool for troubleshooting towers and checking instruments. However, they can lead the unwary down trails to false conclusions. Make sure you understand the system. Then apply the fundamentals of how sight glasses work as DP instruments rather than jumping to the conclusion that they must always show the liquid level inside the tower.

Correct field technique minimizes the probability of getting poor data. Inaccurate data is worse than no data. No data forces you to make a judgement or to look for alternate methods. Inaccurate data leads to the wrong conclusion: ineffective decisions: and wastes money and time.


5 pages.
Electronic version available in Adobe Acrobat PDF format file 092.PDF 50k.

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This page updated 15 January 2005.
© 2005 Andrew W. Sloley. All rights reserved.