Teledyne CEA-9001 - Digital, hand-held, flue gas analyzer - Manual (Page 22)

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O2 Sensor 75 %
CO Sensor 0 %
H2 Sensor 0 %
NO Sensor 0 %
Sensor Status:
O2 reading: > 50 %
O2 Sensor OK
CO & H2 reading: 0 to + 1 %
CO Sensor OK
NO reading: 0 to +1 %
NO Sensor OK
Momentary Sensor failure or degrading can be solved by longer
flush periods in ambient air or / and by exchanging the filter elements.
If the failure or degrading keeps occuring and cannot be fixed,
please contact the supplier!