DATREND Systems venTest, Operating Manual

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venTest OPERATORS MANUAL
Restore Defaults (11 - Figure 31)
This button restores trigger default values of the sensor.
Default trigger conditions are:
Start inspiration : 3.0 l/min Flow rising with 40 ms delay
End inspiration : 1.0 l/min Flow falling with 40 ms delay
Start expiration : -3.0 l/min Flow falling with 40 ms delay
End expiration : -1.0 l/min Flow rising with 40 ms delay
Trigger setting for volume (measurement of TI and TE) is very important for measurement
accuracy. See Appendix A for detailed information and examples of flow and pressure curves with
various trigger settings.
4.12.2.2 Inspiration & Expiration Trigger Button
Detection of inspiration and expiration phases of ventilation depend on the start and end trigger
conditions. These conditions can be set in this window. It is possible to trigger on flow or pressure
values.
With ‘Start-Trigger’ , the beginning of inspiration or expiration is determined, the end trigger value
detects the end of the phase.
Figure 32
Operation/Chapter 4
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