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The value of O2 being reported by my unit seems wrong. What might cause an erroneous reading?

April 26, 2017cause erroneous O2 Reading reported value wrong

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The value of O2 being reported by my unit seems wrong. What might cause an erroneous reading?

1 Answer

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Check the reference gas flowrate. The reference gas flowrate needs to be between 0.1 to 0.5 liters per minute. If it is outside of this, significant errors can result in the O2 reading. Also check that the sample flow rate is between 5 to 10 liters per minute.