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Example: dST for window function
1 Volumetric flow quantity Q reaches 0�5 % of VMR > dST starts, output becomes
active�
2 dST elapsed, Q reached good range > output remains active�
3 Q above SP (leaves good range) > output is reset�
4 Q again below SP > output becomes active again�
5 Q below rP (leaves good range) > output is reset again�
6 Q reaches again 0�5 % of VMR > dST starts, output becomes active�
7 dST elapsed, Q has not reached good range > output is reset�
8 Q reached good range, output becomes active�
4.11 Low flow cut-off (LFC)
Withthisfunctionsmallvolumetricflowquantitiescanbeignored(→10.6.12).
Flows below the LFC value are evaluated by the sensor as standstill (Q = 0)�
4.12 Simulation
Withthisfunctionsmallvolumetricflowquantitiescanbesuppressed(→10.7.3).
The simulation does not have any effect on the totaliser or the current flow� The
outputs operate as previously set�
When the simulation starts, the value of the totaliser is saved and then the
simulated totaliser is set to 0� The simulated flow value then has an effect on the
simulated totaliser� When the simulation is finished, the original totaliser value is
restored�
During the simulation the original totaliser value remains saved without any
changes even if there is a real flow�
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