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GrainPro® Oxygen Analyzer GPO2-AN Instruction
Manual
MA4034RDC1013-05
4.2.2.Insert the suction tube of the hand
pump into the gas sampling port of
the storage enclosure.
4.2.3.Pump the analyzer to measure the
oxygen level percentage inside the storage
structure. Continue pumping until the reading
stabilizes to its lowest possible reading. This will be
accomplished in less than a minute.
OPERATING THE ANALYZER
PREPARATION
The instrument is activated by
pushing the red Power button. The
display then indicates a value.
To
prepare
the
analyzer
for
sampling, connect the exhaust tube
(translucent white, soft) of the hand
pump to the inlet port at the right side
of the analyzer.
MEASUREMENT
Perform span calibration by pumping clean
air into the analyzer while setting the
reading to 20.9 ± 0.1% by turning the black
front panel calibration knob either clockwise
or counterclockwise.