Datex-Ohmeda 7100, Техническое справочное руководство

Страница: 52 / 158

7100 Anesthesia Ventilator
4-12 02/03 1006-0836-000
4.9.1
O
2
Calibrations
The O
2
Calibrations take into account the altitude setting. Before starting the
calibrations, ensure that the altitude setting (in “System Configuration” menu)
is set to the appropriate altitude for the machine location.
For the “21% O
2
Calibration” software reads the A/D value for the O
2
sensor
when the O
2
sensor is exposed to room air (21% O
2
).
• If this A/D value is not within the tolerance, the calibration fails.
• If the calibration passes, the A/D value is stored in the EEPROM.
The sensor must be calibrated at 21% O
2
before calibration at 100% O
2
.
Remarks
Remove the O
2
sensor from the breathing system and expose it to room air.
The displayed reading should be 21% ± 2% to pass the calibration
requirements.
Place the sensor that passed the 21% test in the breathing system and expose
it to 100% O
2
.
If it displays readings higher or lower than required to pass, replace the sensor.