Vega VEGAPULS 64 - Page 43

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6 Set up with the display and adjustment module
VEGAPULS 64 • Two-wire 4 … 20 mA/HART
51141-EN-210219
For operation of the instrument in plastic tanks, certain conditions
mustbefullled(seechapter"Radio licenses" for Europe, USA and
Canada).
Open water (gauge measurement)
•
Process/measurement conditions:
– Slow gauge change
– Extreme damping of output signal due to wave generation
– Ice and condensation on the antenna possible
– Floating debris sporadically on the water surface
•
Properties, sensor:
– Stable and reliable measured values through frequent averag-
ing
– Insensitive in the close range
Openume(owmeasurement)
•
Process/measurement conditions:
– Slow gauge change
– Ice and condensation on the antenna possible
– Smooth water surface
– Exact measurement result required
•
Properties, sensor:
– Stable and reliable measured values through frequent averag-
ing
– Insensitive in the close range
Rain water spillover (weir)
•
Rate of level change: slow level change
•
Process/measurement conditions:
– Ice and condensation on the antenna possible
– Spiders and insects build nests in the antennas
– Turbulent water surface
– Sensoroodingpossible
•
Properties, sensor:
– Stable and reliable measured values through frequent averag-
ing
– Insensitive in the close range
Demonstration
•
Setting for all applications which are not typically level measure-
ment
– Instrument demonstration
– Object recognition/monitoring (additional settings required)
•
Properties, sensor:
– Sensor accepts all measured value changes within the measur-
ing range immediately
– High sensitivity to interference, because virtually no averaging
Vessel shape
Apart from the medium and the application, the vessel form itself can
inuencethemeasurement.Toadaptthesensortothesemeasuring
conditions,thismenuitemoersdierentoptionsforvesselbottom
and ceiling for certain applications.