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Advanced Instruments Inc.
GAS CONCENTRATION
20.09%
PRESS UP OR DOWN
TO CHANGE VALUE
ENTER TO SAVE
MENU TO RETURN
>>>
20.01%
SPAN CALIBRATION
WAIT FOR STEADY RDG
ENTER TO CALIBRATE
MENU TO ABORT
By using the UP or DOWN arrow keys, enter the appropriate digit where the cursor is blinking
Press the ENTER key to advance the underline cursor right or press the MENU key to advance the underline cursor
left to reach to the desired digit of the gas value.
Repeat until the complete span value has been entered.
In the example above, a span value of 20.09% has been entered.
After the span value has been entered, the analyzer will display the actual oxygen reading and prompt to press the
ENTER key to accept SPAN CALIBRATION or MENU to escape.
Caution: Allow the analyzer reading to stabilized before accepting calibration.
After successful calibration, the analyzer will display a message “Passed Calibration” and return to the Sample mode.
NOTE: The analyzer is allowed to accept calibration when O2 reading is within the acceptable value. If the O2
reading is outside of this limit, by pressing ENTER to accept calibration will result in “Failed Calibration” and return to
the Sample mode without completing Span calibration. After pressing ENTER either of the following two messages
will be displayed and the analyzer will return to SAMPLE mode.
PASSED
CALIBRATION
OR
FAILED
CALIBRATION
Span
Gas
Calibration
This procedure assumes a span gas under positive pressure. Connect the span gas to the analyzer Sample input port
and set the span gas flow 1-2 SCFH
NOTE: To assure an accurate calibration, the temperature and pressure of the span gas must closely approximate
the sample conditions.
For calibration purposes, use of the AUTO SAMPLE mode is recommended.
Access the MAIN MENU by pressing the MENU key.
Advance the reverse shade cursor using the ARROW keys to highlight AUTO SAMPLE.
Press the ENTER key to select the highlighted menu option.
The following displays appear:
MAIN MENU
SELECT RANGE
CALIBRATION
VIEW HISTORY
SYSTEM OPTIONS
>>>
CALIBRATION
SPAN CALIBRATE
ZERO CALIBRATE
DEFAULT SPAN
DEFAULT ZERO
OUTPUT CALIBRATE
OUTPUT SIMULATE
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