Vega VEGAPULS 64 Operating Instructions Manual page 39

VEGAPULS 64 • 4 ... 20 mA/HART - two-wire
•
Properties, sensor:
– Higher measurement speed through less averaging
– Sporadic false echoes are suppressed
- Dosing vessel:
•
Setup: all vessel sizes possible
•
Medium speed:
– Fast filling and emptying
– Vessel is filled and emptied very often
•
Vessel: tight installation situation
•
Process/measurement conditions:
– Condensation, buildup on the antenna
– Foam generation
•
Properties, sensor:
– Measurement speed optimized by virtually no averaging
– Sporadic false echoes are suppressed
– False signal suppression recommended
- Plastic tank:
•
Vessel:
– Instrument fix mounted or built in
– Measurement through the vessel top, if appropriate to the
application
– With empty vessel, the measurement can go through the bot-
tom
•
Process/measurement conditions:
– Condensation on the plastic ceiling
– In outdoor facilities, water and snow on vessel top possible
•
Properties, sensor:
– False signals outside the vessel are not taken into consideration
– False signal suppression recommended
For operation of the instrument in plastic tanks, certain conditions
must be fulfilled (see chapter "Radio licenses" for Europe, USA and
Canada).
- Transportable plastic tank:
•
Vessel:
– Material and thickness different
– Measurement through the vessel top
•
Process/measurement conditions:
– Measured value jump with vessel change
•
Properties, sensor:
– Quick adaptation to changing reflection conditions due to ves-
sel change
– False signal suppression required
For operation of the instrument in plastic tanks, certain conditions
must be fulfilled (see chapter "Radio licenses" for Europe, USA and
Canada).
- Open water (gauge measurement):
•
Rate of level change: slow level change
•
Process/measurement conditions:
6 Set up with the display and adjustment module
39