Measuring techniques for level measurement 

In continuous level measurement, the level of a medium in a tank or silo is detected and converted into an electronic signal. The level signal is either displayed directly on site or incorporated into a process control or management system. The measured media are liquids, pastes, powders or bulk solids.

Typical applications for continuous level measurement are process tanks, storage tanks or silos in the process industry.
The different industries place very specific requirements on the measurement technology they use. Taking the properties of the medium as well as the individual process conditions into consideration, VEGA provides a level sensor perfectly adapted to each measuring point.

With the "finder" you can determine the right sensor for your application quickly and easily.

Level
Liquids

Level
Solids

Choose between the different measuring principles for level measurement of liquids.

Radar Radar » VEGAPULS WL 61 Measuring range up to 15 m   Process fitting thread G1½ mounting strap compression flanges from DN 80, 3" Process temperature -40 … +80 °C Process pressure -1 … +2 bar (-100 … +200 kPa) Measuring precision ±2 mm » VEGAPULS 61 Measuring range up to 35 m   Process fitting thread G1½, 1½ NPT mounting strap compression flanges from DN 80, 3" Process temperature -40 … +80 °C Process pressure -1 … +3 bar (-100 … +300 kPa) Measuring precision +/- 2 mm SIL qualification up to SIL2 » VEGAPULS 62 Measuring range up to 35 m Process fitting thread from G1½, 1½ NPT flanges from DN 50, 2" Process temperature -200 … +450 °C Process pressure -1 … +160 bar (-100…+16000 kPa) Measuring precision +/- 2 mm SIL qualification up to SIL2 » VEGAPULS 63 Measuring range up to 35 m   Process fitting hygienic fittings boltings flanges from DN 50, 2" Process temperature -200 … +200 °C   Process pressure -1 … +16 bar (-100 … +1600 kPa) Measuring precision +/- 2 mm SIL qualification up to SIL2 » VEGAPULS 65 Measuring range up to 35 m Process fitting thread from G1½, 1½ NPT flanges from DN 50, 2" Process temperature -40 … +150 °C Process pressure -1 … +16 bar (-100 … +1600 kPa) Measurement accuracy +/- 8 mm SIL qualification up to SIL2 » VEGAPULS 66 Measuring range up to 35 m Process fitting flanges up to DN 50, 2" Process temperature -60 … +400 °C Process pressure -1 … +160 bar (-100 … +16000 kPa) Measurement accuracy +/- 8 mm SIL qualification up to SIL2

Guided microwave Guided microwave » VEGAFLEX 61 Version exchangeable cable (ø 2 mm, ø 4 mm) exchangeable rod (ø 6 mm) Measuring range cable: up to 32 m rod: up to 4 m Process fitting thread from G¾, ¾ NPT flanges from DN 25, 1" Process temperature -40 … +150 °C Process pressure -1 … +40 bar (-100 … +4000 kPa) Accuracy +/- 3 mm SIL qualification up to SIL2 » VEGAFLEX 62 Version exchangeable cable (ø 6 mm) exchangeable rod (ø 16 mm) Measuring range cable: up to 60 m rod: up to 6 m Process fitting thread from G1½, 1½ NPT flanges from DN 50, 2" Process temperature -40 … +150 °C Process pressure -1 … +40 bar (-100 … +4000 kPa) Accuracy +/- 3 mm SIL qualification up to SIL2 » VEGAFLEX 63 Version cable (ø 4 mm) rod (ø 10 mm) Measuring range cable: up to 32 m rod: up to 4 m Process fitting flanges from DN 50, 2“ Clamp from 1" Process temperature -40 … +150 °C Process pressure -0.5 … +16 bar (-50… +1600 kPa) Accuracy +/- 3 mm SIL qualification up to SIL2 » VEGAFLEX 65 Version coax probe Measuring range up to 6 m Process fitting thread from G¾, ¾ NPT flanges from DN 25, 1" Process temperature -40 … +150 °C Process pressure -1 … +40 bar (-100 … +4000 kPa) Accuracy +/- 2 mm SIL qualification up to SIL2 » VEGAFLEX 66 Version exchangeable cable (from ø 4 mm) exchangeable rod (from ø 6 mm) coax probe Measuring range cable up to 60 m rod up to 6 m coax up to 6 m Process fitting thread from G¾, ¾ NPT flanges from DN 40, 2" Process temperature -200 … +400 °C Process pressure -1 … +400 bar (-100 … +40000 kPa) Accuracy from ±3 mm SIL qualification up to SIL2 » VEGAFLEX 67 Version exchangeable cable (ø 4 mm) exchangeable rod (ø 6 mm) coax probe Measuring range cable up to 60 m rod up to 6 m coax up to 6 m Process fitting thread from G¾, ¾ NPT flanges from DN 25, 1" Process temperature -200 … +400 °C Process pressure -1 … +400 bar (-100 … +40000 kPa) Accuracy ±10 mm

Ultrasonic Ultrasonic » VEGASON 61 Measuring range in liquids: 0.25 … 5 m in bulk solids: 0.25 … 2 m Process fitting thread G1½, 1½ NPT Process temperature -40 … +80 °C Process pressure -0,2 … +2 bar (-20 … +200 kPa) SIL qualification up to SIL2 » VEGASON 62 Measuring range in liquids: 0.4 … 8 m in bulk solids: 0.4 … 3.5 m Process fitting thread G2, 2 NPT Process temperature -40 … +80 °C Process pressure -0,2 … +2 bar (-20 … +200 kPa) SIL qualification up to SIL2 » VEGASON 63 Measuring range in liquids: 0.6 … 15 m in bulk solids: 0.6 … 7 m Process fitting compression flange DN 100 mounting strap Process temperature -40 … +80 °C Process pressure -0,2 … +1 bar (-20 … +100 kPa) SIL qualification up to SIL2

Capacitive Capacitive » VEGACAL 62 Version partly insulated rod Measuring range up to 6 m Process fitting thread from G¾, ¾ NPT flanges from DN 25, 1" Materials steel, 316L, PTFE Process temperature -50 … +200 °C Process pressure -1 … +64 bar (-100 … +6400 kPa) SIL qualification up to SIL2 » VEGACAL 63 Version fully insulated rod Measuring range up to 6 m Process fitting thread from G¾, ¾ NPT flanges from DN 25, 1" Materials 316L, PE, PTFE Process temperature -50 … +200 °C Process pressure -1 … +64 bar (-100 … +6400 kPa) SIL qualification up to SIL2 » VEGACAL 64 Version fully insulated rod Process fitting thread from G¾, ¾ NPT flanges from DN 25, 1" Process temperature -50 … +150 °C Process pressure -1 … +64 bar (-100 … +6400 kPa) SIL qualification up to SIL2 » VEGACAL 65 Version partly insulated cable Process fitting thread from G1, 1 NPT flanges from DN 50, 1" Process temperature -50 … +200 °C Process pressure -1 … +64 bar (-100 … +6400 kPa) SIL qualification up to SIL2 » VEGACAL 66 Version fully insulated cable Process fitting thread from G1, 1 NPT flanges from DN 50, 2" Process temperature -50 … +150 °C Process pressure -1 … +40 bar (-100 … +4000 kPa) SIL qualification up to SIL2 » VEGACAL 69 Version double rod Materials PTFE, PP, FEP Measuring range up to 4 m Process fitting flanges from DN 50, 2" Process temperature -50 … +100 °C Process pressure -1 … +2 bar (-100 … +200 kPa) SIL qualification up to SIL2

Hydrostatic Hydrostatic » VEGABAR 66 Measuring cell CERTEC Measuring range 0 … +25 bar (0 … +2500 kPa) Prozessanschluss thread from G1½, 1½ NPT flanges from DN 40, 2" Process temperature -40 … +100 °C Deviation in characteritics 0.1 % SIL qualification up to SIL2 » VEGABAR 67 Measuring cell METEC Measuring range 0 … +25 bar (0 … +2500 kPa) Process fitting thread from G1½, 1½ NPT flanges from DN 50, 2" Process temperature -12 … +100 °C Deviation in characteritics 0.1 % SIL qualification up to SIL2 » VEGAWELL 52 Measuring cell CERTEC Sensor diameter from 22 mm Measuring range 0 … +60 bar (0 … +6000 kPa) Process temperature -20 … +80 °C Deviation in characteritics 0.2 %; 0.1 %

Radiation-based Radiation-based » FIBERTRAC 31 Version sensor with flexible plastic detector ø 42 mm Rango de medida 1000 … 7000 mm (ndividual con posibilidad de operación en cas cada) Process fitting from outside on the vessel Accuracy ± 0.5 % SIL qualification up to SIL2 » SOLITRAC 31 Version PVT rod detector for cylindrical vessel forms Measuring range 300 … 3000 mm (individual with cascading operation) Process fitting from outside on the vessel Accuracy ± 0.5 % SIL qualification up to SIL2