Operating instructions

48
8 Application examples
VEGAMET 625 • Double channel HART
28970-EN-150129
SelectintheDTMwindow"Scaling"under"Parameter"theoption
"Flow".Finallytheallocationofavaluemustbecarriedout,i.e.the
owvolumeisassignedtothe0and100%value.Asthelaststep,
select the requested meas. unit. For above example: 0 % = 0 and
100 % = 400, meas. unit m³/h.
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"(current
output)theoption"Flow volume pulse"or"Sampling pulse".Enter
under"Pulse output all"theowvolumeafterwhichapulseshouldbe
outputted(e.g.400m³correspondstoonepulseperhourwithaow
volume of 400 m³/h).
Inmode"Sampling pulse"anadditionalpulseisoutputtedaftera
dened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owvolume.
Duetosludgeatthebottomoftheume,itcanhappenthatthemin.
adjustment originally carried out can no longer be reached. Therefore
smallquantitieswillcontinuouslyentertheowvolumedetection
despitethe"empty"ume.Theoption"Min. ow volume suppression"
oersthepossibilitytosuppressmeasuredowvolumesbelowa
certainpercentagevaluefortheowvolumedetection.
Scaling
Outputs