A portable oxygen analyser for use onboard ship is of the paramagnetic sensing element type. It is being used to test the atmosphere of a space onboard ship but starts to give erratic readings. There is no obvious indication as to why this is happening. What is the most likely cause of this problem?

28 Jul, 08:08

July 28, 2021, 8:08 a.m.
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Answer:

The sampling filter is partially blocked giving rise to wide pressure variations in the sampling chamber.

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28 Jul, 08:09

July 28, 2021, 8:09 a.m.
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