VEGA VEGAMET 624 - Manual (Page 42)

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8 Application examples
VEGAMET 624 • 4 … 20 mA/HART
28969-EN-130701
First of all decide if you want to use a relay and/or a current output. In
the DTM window "Outputs" you can use any of the three outputs as
long as these are not yet used for other tasks.
Finally select under "Mode" (relay) or "Output characteristics" (cur-
rent output) the option "Flow volume pulse" or "Sampling pulse". Enter
under "Pulse output all" the flow volume after which a pulse should be
outputted (e.g. 400 m³ corresponds to one pulse per hour with a flow
volume of 400 m³/h).
In mode "Sampling pulse" an additional pulse is outputted after a
defined time. This means that a timer is started after each pulse after
which another pulse is outputted. This applies only if already a pulse
was outputted after exceeding the flow volume.
Due to sludge at the bottom of the flume, it can happen that the min.
adjustment originally carried out can no longer be reached. Therefore
small quantities will continuously enter the flow volume detection
despite the "empty" flume. The option "Min. flow volume suppression"
offers the possibility to suppress measured flow volumes below a
certain percentage value for the flow volume detection.
Outputs