4 Tests and Calibration
1006-0836-000 02/03
4-13
4.9.2
Zero
Flow and Airway Sensors
The
Zero Flow and Airway Sensors
procedure
•
zeros any offset in the amplifier for the airway pressure sensor
•
determines the zero value for the inspiratory flow and expiratory flow
measurement differential pressure transducers.
It does so by reading the A/D values for inspiratory flow, expiratory flow, and
airway pressure when the flow sensors have been disconnected from the
breathing system.
•
If the calibration passes, the offset and zero values are stored in the
EEPROM.
•
If the A/D values are not within the correct tolerance the calibration
fails.
If the calibration fails, the screen will display the reason for the failure.
Remarks
Ensure that the flow sensor module is disconnected from the breathing system.
“Fail” indicates a problem in the MIA/VMB (Inspiratory Flow and Expiratory
Flow transducers) or the PEB/VEB (Airway Pressure transducer).
Check the transducer outputs using the “
Display A/D Channels”
menu (on
“
Diagnostics” menu
).
If any of the transducers are out of tolerance:
•
Follow Section 5.4.3, “Inaccurate Volume Ventilation
Troubleshooting,” for issues with inspiratory and expiratory flow
transducers.
•
Replace the PEB/VEB assemblies, for issues with the airway pressure
transducer.
Содержание 7100
Страница 1: ...7100 Anesthesia Ventilator Technical Reference Manual ...
Страница 102: ...Notes 5 22 02 03 1006 0836 000 ...
Страница 144: ...Notes 8 16 02 03 1006 0836 000 ...
Страница 156: ...9 12 02 03 1006 0836 000 Notes ...
Страница 157: ......