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6 Set up with the display and adjustment module
LBR • Two-wire 4 … 20 mA/HART
62273-EN-200520
Vessel height/Measuring range:
The LBR is a bulk solids radar sensor for high, slender vessels. It
covers a measuring range up to 120 m. This menu item lets you limit
the active measuring range in which the instrument searches for level
echoes.
Information:
The min. adjustment must be carried out independently of this.
The following features form the basis of the applications:
Silo (slender and high):
•
Process/measurement conditions:
– Filling aperture too close to the sensor
– System noise in completely empty silo increased
–
Interfering reflections due to weld seams on the vessel
•
Properties, sensor:
– Stable measured values through higher averaging
– False signal suppression recommended during setup
Bunker (large-volumed)
•
Process/measurement conditions:
– Large distance to the medium
– Large angles of repose
–
Interfering reflections due to structured vessel walls or internals
•
Properties, sensor:
– Mean averaging
– High measured value jumps are accepted
Bunker with fast filling:
•
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:
•
Process/measurement conditions:
