Covidien Puritan Bennett 700 Series, Service Manual

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Service and utility functions
4-20 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual
If you selected Exit testing, do the following:
4.2.3.3 Clear test log: Erasing the test log
This function lets you erase all diagnostic codes from the test log.
4.2.3.4 Clear alert log: Erasing the alert log
This function lets you erase all diagnostic codes from the alert log.
4.2.3.5 Update constants: Manually inputting calibration constants into NVRAM.
This function lets you manually input calibration constants into NVRAM. It is intended for use
when installing a new oxygen solenoid assembly, flow sensor, or piston/cylinder assembly.
NOTE:
Always set the calibration constants to the values listed on the calibration constants
label for the applicable part.
Message window display Description
Exit testing Press ACCEPT to reset the ventilator and exit the service menu in preparation for
ventilation
Message window display Description
Clear test log Press ACCEPT to erase all diagnostic codes from the test log.
Clear test log
Log cleared Press ACCEPT.
Message window display Description
Clear alert log Press ACCEPT to erase all diagnostic codes from the alert log.
Clear alert log
Log cleared Press ACCEPT.
Message window display Description
Update constants Press ACCEPT to proceed.
Update oxygen mixing
or
Update flow sensor
or
Update piston
or
Update prsol nvram
Turn the knob to locate the desired category of calibration constant and select by
pressing ACCEPT.
Caution
To ensure correct function of the pressure solenoid PCB, if you perform the
Update prsol nvram function, you must then perform the
O
2
pressure calib
and FIO
2
sensor calib functions.