Principles of Good Measurement - Vibration Level Switches     

 

VEGASWING: For manifold applications in liquids

Measuring principle and applications

The piezo drive is the heart of the sensor, activating the tuning fork to vibrate on its resonance frequency. The frequency of the fork reduces with the immersion. The frequency change is evaluated by the integrated electronics and converted into a switching signal. An optimized screwed connection is used to ensure reliability and ruggedness of the piezo drive. With the tuning fork of only 40 mm length, VEGASWINGs work reliably in all liquids independent of the installation position. Pressure, temperature, foam, viscosity and bubbles do not influence the switching accuracy.

 

VEGAVIB: Reliable switching in bulk solids

Measuring principle and applications
The vibrating rod of VEGAVIB is activated to vibrate via the piezo drive. If the vibrating rod is immersed, the amplitude will be damped. The electronics detects this damping and converts it into a switching command.

Due to the rod design, it is almost impossible for material to build up or get wedged in. The easy cleanability offers the requirements for use in the food processing and pharmaceutical industry. The installation position and granulation size do not influence the reliability. Mounting and setup are very easy, an adjustment with medium is not necessary. Typical applications are overfill and dry run protection systems in products such as plastic granules, styrofoam, milk powder and pellets.

 

VEGAWAVE: Robust and reliable

Measuring principle and applications

A tuning fork is used as sensor for the VEGAWAVE series. Control as well as processing correspond to VEGAVIB series.

The advantages of this series are ruggedness as well as insensitivity to buildup. Therefore, it is the ideal sensor for powders and fine-grained products. Mounting and setup are very easy, an adjustment with medium is not necessary. Typical applications are overfill and dry run protection systems in products such as flour, cement, plastic granules, sand fine gravel and styrofoam.

This entry was posted on Wednesday, May 7th, 2008 at 8:43 am and is filed under Level Switching, Principles of Good Measurement, Vibration Measurement Solid Switches. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.