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2. SET-UP PROCEDURE
2.1 Battery Installation
All MAXO2 analyzer units are powered by two, AA alkaline batteries (2 x
1.5 Volts) and are shipped without the batteries installed. The battery
compartment is accessible from the back side of the unit. To install the
batteries:
1) With the thumb, press down on the center of the battery compartment
cover and slide the cover off of the instrument case.
2) Install the two, AA, alkaline batteries (2 x 1.5 Volts) in the unit,
observing the orientation shown on the label inside the compartment.
3) Slide the battery compartment cover back onto the case. Make sure
the tabs on the cover snap into position, securing the cover flush
against the case.
When batteries are installed in the MAXO
2
analyzer, the unit initiates a
self-diagnostic test. All segments of the LCD readout are turned on for
approximately 2 seconds. When the diagnostic test is completed
successfully, the word "OFF" will appear on the display, indicating that the
unit is ready to be calibrated.
2.2 Calibrating the MAXO2
Analyzer
2.2.1 Before You Begin
The MAXO2 Oxygen Analyzer should be calibrated upon receipt.
Thereafter, Maxtec recommends calibration on a weekly basis. However,
more frequent calibration will not adversely affect product performance.
More frequent calibration is required when:
• The temperature of the gas stream changes by more than 3 degrees
Celsius.
• Changes in elevation result in calibration error of approximately 1% of
reading per 250 feet. In general calibration of the instrument should
be performed when the geographic elevation at which the product is
being used changes by more than 500 feet.
In addition, calibration is recommended if the user is unsure when the last
calibration procedure was performed or if the measurement value
displayed is in question.
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