4 Install/Service Menus
M1046983 04/08 4-23
4.5.5 Inspiratory Flow
Valve
The Inspiratory Flow Valve instructions appear when the focus is on the Insp
Flow Valve menu item.
Refer to Section 5.4.3, “Inspiratory Flow Valve Cal.”
Instructions
During calibration, a separate menu shows the counts and corresponding
flow at each step.
• If the outcome of both stages of the calibration is Pass, the new calibration
data is saved.
• If the outcome of either stage is Fail, the old calibration data is retained.
• The results of each stage of the calibration are saved to the Event Log.
Selecting Previous Menu before the calibration is done, aborts the calibration
in progress and keep the old calibration constants.
Insp Flow Valve Menu
Insp Flow Valve Data menu
The Insp Flow Valve Data menu contains a table of 24 entries from the
previous calibration. The table is erased at the start of Stage 1. The table is
updated in real time during the calibration.
Read all steps before you start:
1. Complete the Manifold P Span calibration.
2. Put #2 plugs in the manifold and the drive gas ports of the vent engine.
3. Push the ComWheel to show the next menu.
4. Select Stage 1 calibration.
5. After Pass, replace the manifold port plug with the calibration orifice.
6. Select Stage 2 calibration.
7. You MUST do both stages for the calibration to be saved.
Menu Item Message text Comments
Stage 1 Calibrate the insp flow valve at low flows.
Blocked text:
“Connect a supply of the drive gas to continue.”
Blocked if the ventilator
drive gas supply pressure
would cause a gas supply
alarm during normal
operation.
Stage 2 Calibrate the insp flow valve at high flows.
Blocked text:
“Stage 1 calibration is required first.”
Blocked if Stage 1 has not
been completed.
Insp Flow Valve Data Show insp flow valve calibration table.
Previous Menu Return to previous menu.
During Calibration:
“Calibration in progress. Push ComWheel to
cancel.”
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