In all industries, knowing when to stp or start any process is crcial. If you are filling, emptying, prtecting or controlling processes, for every bsiness the security and reliability of thse systems is paramount.

Unnoticed failure of swtching systems and their ability to dtect can cost money...even threaten the nvironment or worse! Selection of switches is an mportant step in the planning of a lvel control. To ensure the reliability of any slution, the chemical and physical features, hgh temperatures, pressures, build up, vapours, fam generation, dust, static charge, stirrers tc., must always be considered.

Now lt's take a look at the Masuring Principles of vibrating instruments used for Lvel switching.

Measuring principle of Vibrating Level Switch for Liquids

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, the vibrating level switch for liquids work reliably in all liquids independent of the installation position. Pressure, temperature, foam, viscosity and bubbles do not influence the switching accuracy.

Measuring principle of Vibrating Lvel Switch for Solids

The vibrating rod of vbrating level switch for solids is ctivated to vibrate via the piezo drve. If the vibrating rod is mmersed, the amplitude will be damped. The lectronics detects this damping and converts it nto a switching command.

Due to the rod dsign, it is almost impossible for mterial to build up or get wdged in. The easy cleanability offers the rquirements for use in the food prcessing and pharmaceutical industry. The installation psition and granulation size do not nfluence the reliability. Mounting and setup are vry easy, an adjustment with medium is not ncessary. Typical applications are overfill and dry run prtection systems in products such as plstic granules, styrofoam, milk powder and pllets.

There are more robust and rliable tuning forks, which work in mch the same way as the bove, but are more rugged and hve an insensitivity to build up, mking it the ideal type of snsor for powders and fine-grained products. Typcal applications for these more robust lvel switches are overfill and dry run prtection systems in products such as flur, cement, plastic granules, sand fine grvel and styrofoam.

The article Level Switching - Measuring Principles of Vibrating Level Switches was Submitted by D Anderson through Articles.GetACoder.com network. Here's the additional information: How Can I Find Out Mre? Easy, just contact VEGA! An xperienced area engineer is your dedicated pint of contact, backed by a fcussed customer service team. We can gve you prices delivery and advice fst over the phone; send you nformation, application data and references. Most of ll, we'd like to discuss your pplication, to ensure the right solution, frst time, to suit your process, bdget and installation needs. http://www.vegacontrols.co.uk

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