6 Set up with the display and adjustment module
34
– Vent hole
– Joins like flanges, weld joints
– Shifting of the running time in the tube
•
Process/measurement conditions:
– Condensation
– Buildup
•
Properties, sensor:
– Measurement speed optimized through little averaging
– Entering the tube inside diameter takes the running time shift
into consideration
– Echo detection sensitivity reduced
Bypass:
•
Product speed:
– 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
•
Properties, sensor:
– Measurement speed optimized through little averaging
– Entering the tube inside diameter takes the running time shift
into consideration
– Echo detection sensitivity reduced
– False signal suppression recommended
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
•
Properties, sensor:
– False signals outside the vessel are not taken into consideration
– False signal suppression recommended
Transportable plastic tank:
•
Vessel:
– Material and thickness different
– Measurement through the vessel top
•
Process/measurement conditions:
– Measured value jump with vessel change
•
Properties, sensor:
LEVEL TRANSMITTER 8136 • 4 ... 20 mA/HART - two-wire