VEGA VEGAPULS SR 68 Modbus and Levelmaster protocol - Manual (Page 40)

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6 Set up the sensor with the display and adjustment module
VEGAPULS SR 68 • Modbus and Levelmaster protocol
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– Fast up to slow filling with short up to long bypass tube possible
– Often the level is hold via a control facility
•
Vessel:
– Lateral outlets and inlets
– Joins like flanges, weld joints
– Shifting of the running time in the tube
•
Process/measurement conditions:
– Condensation
– Buildup
– Separation of oil and water possible
– Overfilling into the antenna possible
Plastic tank:
•
Vessel:
– Measurement fix mounted or integrated
– Measurement depending on the application through the vessel
top
– With empty vessel, the measurement can be carried out
through the bottom
•
Process/measurement conditions:
– Condensation on the plastic ceiling
– In outside facilities water and snow on the vessel top possible
Transportable plastic tank:
•
Vessel:
– Material and thickness different
– Measurement through the vessel top
•
Process/measurement conditions:
– Measured value jump with vessel change
Open water (gauge measurement):
•
Gauge rate of change: slow gauge change
•
Process/measurement conditions:
– Distance sensor to water surface to big
– Extreme damping of output signal due to wave generation
– Ice and condensation on the antenna possible
– Spiders and insect nestle in the antennas
– Floating material and animals sporadically on the water surface
Open flume (flow measurement):
•
Gauge rate of change: slow gauge change
•
Process/measurement conditions:
– Ice and condensation on the antenna possible
– Spiders and insect nestle in the antennas
– Smooth water surface
– Exact measurement result required
– Distance to the water surface normally relatively high
Rain water overfall (weir):
•
Gauge rate of change: slow gauge change
•
Process/measurement conditions:
– Ice and condensation on the antenna possible
– Spiders and insect nestle in the antennas