What is the purpose of the pressure regulator on the APA 6000 analyser?

Document ID

Document ID TE6638

Published Date

Published Date 01/06/2022
Question
What is the purpose of the pressure regulator on the APA 6000 analyser?
Summary
APA 6000 analyser backpressure regulator's purpose.
Answer
The design of the APA 6000 colorimeter requires that air bubbles be eliminated as much as possible.  Even small bubbles can upset light transmittance through the sample, resulting in erroneous or rejected readings. The backpressure regulator on the sample waste tube maintains approximately 20 PSI pressure on the sample.  This pressure helps to keep gasses dissolved in the sample (instead of forming bubbles) as it passes through the colorimeter. 
 

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