Datex-Ohmeda Aespire View, User'S Reference Manual, Page: 85 / 150

7 User Maintenance
M1132382
7-5
O2 cell calibration
WARNING Do not perform O2 cell calibration while the system is
connected to a patient.
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The O2 cell must be calibrated at the same environment
pressure at which it will be used to monitor oxygen
delivery in the patient circuit.
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Operation at pressures other than the pressures present
during calibration may result in readings outside of the
stated monitoring accuracy.
Important It may take a new O2 cell 90 minutes to stabilize. If the O2 cell
calibration fails after a new O2 cell has been installed, wait 90
minutes and repeat the calibration.
21% O2 cell
calibration
Complete a 21% O2 cell calibration before performing the 100% O2
cell calibration.
1. Push the Menu key.
2. Select Setup/Calibration .
3. Select O2 Sensor Calibration .
4. Select 21% O2 .
5. Remove the O2 cell from the circuit.
• Pull the latch to unlock the flow sensor module.
• Pull the flow sensor module out of the breathing system.
• Remove the O2 cell by unscrewing the cell counterclockwise.
This exposes the O2 cell to room air.
6. Select Start Calibration . ‘Calibrating . . .’ shows on the screen
while the O2 cell is being calibrated to the room air.
7. ‘Complete’ shows on the screen upon successful calibration:
• Reinstall the O2 cell.
• Select Go to Setup/Calibration Menu .
8. If the screen shows ‘Failure,’ repeat the 21% O2 cell calibration.
9. If the calibration fails after another attempt, perform a 100% O2
cell calibration. Then try the 21% O2 cell calibration again.
10. Replace the O2 cell if repeated failures occur.