admittance level measurement in liquids with Vegacal 62, 63, 64, 66 from Vega
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Vega admittance level measurement in liquids with VEGACAL 62, 63, 64, 66
Measuring principle
Probe, measured product and vessel wall form an electrical capacitor. The capacitance is influenced by three main factors.

1. Distance between the electrode surfaces
2. Size of the electrode surfaces
3. Type of dielectric between the electrodes

The probe and the vessel wall are the capacitor plates. The measured product is the dielectric.Due to the higher dielectric constant (DK value) of the product compared to air, the capacitance increases as the material gradually covers the probe. The capacitance as well as the resistance change are converted in the oscillator intoa level-proportional signal.
The more constant the conductivity, concentration and temperature of a product, the better the conditions for admittance measurement. Changes in the measuring conditions are generally less critical when detecting materials with high DK values.
The sensors are maintenance-free and rugged and are used in measurement engineering. Admittance probes haveno minimumdistances or dead band, in whichmeasurement is not possible. Whereas partly insulated versions are predominantly used for solids, fully insulated versions are preferred for liquids.

Corrosive and adhesive products
Implementation in very adhesive or corrosive products is no problem. Since the
admittance measuring principle places no special requirements on mounting, a host of different applications can be equipped with VEGACAL series 60 probes.
Wide application range with meas. ranges up to 32 m (105 ft) the sensors are also suitable for tall vessels. Temperatures up to 200°C (392°F) and pressures from vacuum up to 64 bar (928 psi) cover a wide range of applications.

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Vegacal 62, 63, 64, 66 - Vega admittance level measurement in liquids.
© Sep 2010 Miebo Tech Export, Export Made in Germany