Siare Siaretron 4000 Service Manual page 104

Calibration Phase (0 ........ 12) : there
are 12 calibration phases,
4
corresponding to 12 flow values
provided by SIARETRON.
8
Calibration Phase 12
During the procedure, the flow generated by the turbine (from 0 to 100
l/min) is measured by the internal inspiration flow sensor and the systen
restores the characteristic of the expired flow sensor associating to the
ADC value of the outlest pressure the one of the correspondent flow
measured by the internal inspiration sensor (ref.sensor).
Here below the 12 phases related to the calibration procedure are listed:
•
Initial phase: zero expired flow sensor (0 l/min)
•
Phase 1: turbine acceleration (up to approx 60 l/min)
•
Phase 2 ...6: turbine deceleration (up to approx 2 l/min)
•
Phase 6 ...12: acceleration up to approx 100 l/min