4 Service Tests and Service Mode
M1207026 4-19
4.5.5 Flow Zero The Flow Zero Calibration procedure
• determines the zero value for the inspiratory flow and
expiratory flow measurement differential pressure
transducers.
It does so by reading the value for inspiratory flow and expiratory flow
measurement differential pressure.
• If the calibration passes, the offset and zero values are stored
in the EEPROM.
• If the value is not within the correct tolerance the calibration
fails.
Remarks Ensure that the flow sensor tubes are disconnected from the interface
ports marked “ǻP+” and “ǻP-”.
If the calibration procedure fails, it indicates a problem in the flow
measurement differential pressure transducers of the CSB.
M1207027 004 MANUAL−DOC, Technical Reference Manual, Technical Reference Manual for 9100c, English−default
Reproduced from the electronic master in MATRIX
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