Vega VEGAPULS 69 - Page 41

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6 Set up with the display and adjustment module
VEGAPULS 69 • Foundation Fieldbus
47251-EN-160815
Information:
The min. adjustment must be carried out independently of this.
The following features form the basis of the applications:
Silo (slender and high):
•
Vessel of metal: weld joints
•
Process/measurement conditions:
– Filling aperture too close to the sensor
– System noise in completely empty silo increased
•
Properties, sensor:
– Stable measured values through higher averaging
– False signal suppression during setup recommended, required
for automatic false signal suppression
– Automaticfalsesignalsuppressionwithpartlylledvessel
1)
Bunker (large-volume):
•
Vessel of concrete or metal:
– Structured vessel walls
– Installations present
•
Process/measurement conditions:
– Large distance to the medium
– Large angles of repose
•
Properties, sensor:
– Mean averaging
– High measured value jumps are accepted
Bunkerwithfastlling:
•
Vessel of concrete or metal, also multiple chamber silo:
– Structured vessel walls
– Installations present
•
Process/measurement conditions:
– Measured value jumps, e.g. through truck loading
– Large distance to the medium
– Large angles of repose
•
Properties, sensor:
– Lower averaging
– Very high measured value jumps are accepted
Heap:
•
Sensor mounting on movable conveyor belts
•
Detectionoftheheapprole
•
Heightdetectionduringlling
•
Process/measurement conditions:
1)
 Theinstrumentrecognizesifamanualfalsesignalsuppressionwascarried
out with empty vessel and high system noise. An automatic false signal sup-
pression is then carried out if a product echo was detected at the beginning
ofthellingprocess.