IMT Analytics CITREX H3, User Manual

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15
Appendix
38 IMT Analytics AG
15.2.1 Flow trigger
On CITREX H3 a flow trigger can be set. When the set flow is reached, the trigger
is activated. In this context it is essential to specify whether at the start and end of a
cycle the trigger is to be activated by a rising edge or a falling edge. Flow measure-
ment in the flow channel serves as the trigger source. CITREX H3 can be operated
bidirectionally.
15.2.2 Pressure trigger
In the case of a pressure trigger it is the pressure measured in the flow channel that
serves to activate measurement. Whereby the direction of flow is of no consequence.
15.2.3 Base flow
Base flow is a constant flow that must not be included in volume calculation. If, for
example, a system has a defined leak, resulting in a constant discharge of 3 L/min,
those 3 L/min are not included in the inspiratory volume. The 3 L/min can be entered
as a trigger setting so they will not be taken into account.
15.2.4 Delay
With a delay it is possible to filter out signal errors or noise and prevent false trigger-
ing. As a result, a trigger is only activated if the set trigger level continues to apply
after the delay time. If the trigger level is no longer reached after the delay time, no
trigger is activated. The delay time can be set.
Figure 27: Delay