Manifold P Span - GE Datex-Ohmeda Aisys Carestation Reference Manual

5.4.2 Manifold P Span

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Troubleshooting
M1046983 04/08
Calibration setup:
1. Remove the ABS breathing system from the machine.
2. Remove the Exhalation Valve.
3. Remove the Vent Engine cover.
4. Plug the Drive Port (A) and the Manifold Port (B) on the Vent Engine
interface valve.
5. Connect the manifold pressure tee adapter (C) — refer to Section 10.1.2 —
to the Manifold Pressure Transducer tubing (white inline connectors).
6. Connect a manometer to the open port of the tee adapter.
Calibration procedure:
1. On the Calibration menu, select Manifold P Span.
2. Select Start Manifold P Span.
3. Adjust the Insp Flow Valve (DAC) setting until the manometer reading
equals 100 cmH
• start at approximately 950 counts (press the ComWheel to activate).
C • continue to increment the count until the manometer reading equals
100 cmH
4. Select Save Calibration.
5. Select Previous Menu.
6. Disconnect the manometer from the tee adapter.
7. Remove the tee adapter and reconnect the Manifold Pressure Transducer
tubing.
Manifold P Span Calibration Failure
The Calibration will fail if the:
• ADC value calculated for span is outside the range of 21000-27000 counts.
Possible causes for calibration failure:
• Occlusion or moisture in bulkhead or tubing to VIB transducers.
• Pressure transducer outside of range limits – Check Service Application for
A/D value.
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5 Calibration
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