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Service and utility functions
Puritan Bennett™ 700 Series Ventilator System Service Manual
10070389 Rev. A
4-13
FIO
2
sensor calib: Checking the oxygen sensor calibration.
This function lets you perform a
calibration check of the oxygen sensor.
It requires an oxygen source of at least 50 psi
(345 kPa).
Warning
Never perform the oxygen calibration check in an oxygen-enriched environment. This
could result in improper calibration, yielding incorrect oxygen percentage readings.
If you selected
Exit
testing, do the following:
Message window display
Description
FIO
2
sensor calib
Press ACCEPT to perform this calibration check.
NOTE:
• If you do not wish to perform this calibration check, do not proceed, but
press CLEAR now. If you press ACCEPT now, the calibration check cannot
be exited until complete.
• You can calibrate the oxygen sensor from the service menu (as described
here) or the main menu (using the
Oxygen sensor
function).
FIO
2
sensor calib
Please wait...
Wait while the calibration check proceeds.
FIO
2
sensor calib
Calibration passed
or
Calibration failed
If the calibration passes, press ACCEPT to return to the
Calibration tests
menu. If
you do not intend to perform any other calibration functions, turn the knob to
access
Exit testing
; otherwise, turn the knob to access another calibration function.
If the calibration check fails, try the following corrective actions:
1. Verify oxygen supply pressure is at least 50 psi (345 kPa).
2. Check harness connections between oxygen sensor and ventilator main head
harness.
3. Rerun calibration check.
4. Replace oxygen sensor and repeat calibration check.
5. Replace pressure solenoid PCB.
NOTE:
If the ventilator was functioning correctly before service, but the calibration
fails, it is unlikely that a PCB is malfunctioning.
Message window display
Description
Exit testing
Press ACCEPT to reset the ventilator and exit the service menu in preparation for
ventilation.
Summary of Contents for Puritan Bennett 700 Series
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