31
6 Set up with the display and adjustment module
VEGAPULS 65 • Foundation Fieldbus
36518-EN-140209
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Condensation
–
Smooth product surface
–
High requirements to the measurement accuracy
•
Properties, sensor:
–
Slight sensitivity against sporadic false echoes
–
Stable and reliable measured values by averaging
–
High accuracy
–
Short reaction time of the sensor not required
Storage tanke with product circulation:
•
Setup: large-volumed, upright cylindrical, spherical
•
Product speed: slow filling and emptying
•
Installations: small laterally mounted or large top mounted stirrer
•
Process/measurement conditions:
–
Relatively smooth product surface
–
High requirements to the measurement accuracy
–
Condensation
–
Slight foam generation
–
Overfilling possible
•
Properties, sensor:
–
Slight sensitivity against sporadic false echoes
–
Stable and reliable measured values by averaging
–
High accuracy because not adjusted for max. speed
–
False signal suppression recommended
Storage tank on ships (Cargo Tank):
•
Product speed: slow filling and emptying
•
Vessel:
–
Installations in the bottom section (bracers, heating spirals)
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High sockets 200
… 500
mm, also with large diameters
•
Process/measurement conditions:
–
Condensation, buildup by movement
–
Max. requirement on measurement accuracy from 95
%
•
Properties, sensor:
–
Slight sensitivity against sporadic false echoes
–
Stable and reliable measured values by averaging
–
High accuracy
–
False signal suppression required
Stirrer vessel (reactor):
•
Setup: all vessel sizes possible
•
Product speed:
–
Fast to slow filling possible
–
Vessel is very often filled and emptied
•
Vessel:
–
Socket available
–
Large agitator blades of metal
–
Vortex breakers, heating spirals
•
Process/measurement conditions:
–
Condensation, buildup by movement
–
Strong spout generation
–
Very agitated surface, foam generation
•
Properties, sensor:
