System Calibration Calibration
4 - 6 046-001141-00 A5/A3™ Service Manual
4.3.1 O2 Sensor Calibration
NOTE: Calibrate the O2 sensor again when a great deviation of O2
concentration monitored value occurs or when the O2 sensor or
ventilator control board is replaced.
NOTE: Before calibration, observe if the O2 sensor displays numerics on the
measure screen. If not, confirm that the O2 measure switch is turned on,
check the O2 sensor connection line, or replace the O2 sensor until
measure numerics are displayed.
NOTE: Perform O2 sensor calibration only for units with galvanic O2 cell.
5
Electronic
flowmeter
zeroing (user)
Calibrate the deviation from
zero point of the fresh flow
sensor board.
The electronic flowmeter has a zero point error.
The electronic flowmeter still displays flow when
fresh gases are all turned off.
6
O2 sensor
calibration (user)
Calibrate the accuracy of O2
sensor at 21% and 100% O2.
1. The measured value of the O2 sensor has a
great deviation. The deviation exceeds 3% both
in Air and pure O2.
2. The O2 sensor is replaced.
3. The ventilator control board is replaced.
SN Calibration item Functional description Calibration time
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