AMI 221R, Руководство оператора

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Note: The
MODEL 221R
Oxygen Deficiency Monitor has been calibrated at the factory at an atmosphere at
sea level and is ready for use. It should be re-calibrated again if the new unit is installed at a different elevation than
at sea level.
AMI recommends to calibrate the unit once a year.
ANALYZER CALIBRATION
There are 2 methods for calibration:
•Calibration with Air
or
•Calibration with a Span Gas
CALIBRATION WITH AIR
For this option, you will need to remove the Oxygen Deficiency Monitor from where it is currently installed and take it
to a location where there is fresh ambient air. This will ensure that no contaminant will interfere with the calibration.
Note: Once the Monitor is disconnected from the AC power source, its battery will continue to supply 1 hour of back-
up power.
1. Once in an area with fresh ambient air, the oxygen level reading should stabilize rather quickly.
2. Verify that the Oxygen Deficiency Monitor is reading 20.9%. If not, press the SPAN button and, within
3 seconds, use the UP or DOWN arrow buttons to adjust the LCD reading to 20.9%.
Note: Unlike AMI's other Analyzers, the display on this unit WILL NOT blink when the SPAN
button is pressed.
3.
Return the
MODEL 221R
back to its location, reinstall it and reconnect it to power.
Span
Button
Up
Arrow Buttons
Down
Arrow Buttons
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