Vega VEGAWAVE 63 Operating Instructions Manual

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Vega VEGAWAVE 63 Operating Instructions Manual Manual pdf 8 page image

l SIL identification (with SIL rating ex works)With the serial number, you can access the delivery data of theinstrument via www.vega.com, "VEGA Tools" and "serial numbersearch". In addition to the type label outside, you can also find theserial number on the inside of the instrument.3.2 Principle of operationVEGAWAVE 63 is a point level sensor with tuning fork for leveldetection.It is designed for industrial use in all areas of process technology andis preferably used for bulk solids.Typical applications are overfill and dry run protection. Thanks to itssimple and robust measuring system, VEGAWAVE 63 is virtuallyunaffected by the chemical and physical properties of the bulk solid.It also works when subjected to strong external vibrations or changingproducts.Solid detection in waterIf VEGAWAVE 63 was ordered for solids detection in water, the tuningfork is set to the density of water. In air or when immersed in water(density: 1 g/cm³/0.036 lbs/in), VEGAWAVE 63 signals "uncovered".Only when the vibrating element is also covered with solids (e.g. sand,sludge, gravel etc.) will the sensor signal "covered".Fault monitoringThe electronics module of VEGAWAVE 63 monitors continuously thefollowing criteria:l Correct vibrating frequencyl Line break to the piezo driveIf a malfunction is detected or in case of power failure, the electronicstakes on a defined switching condition, i.e. the output is open (safecondition).The tuning fork is piezoelectrically energised and vibrates at itsmechanical resonance frequency of approx. 150 Hz. When the tuningfork is submerged in the product, the vibration amplitude changes.This change is detected by the integrated electronics module andconverted into a switching command.VEGAWAVE 63 is a compact instrument, i.e. it can be operatedwithout external evaluation system. The integrated electronicsevaluates the level signal and outputs a switching signal. With thisswitching signal, a connected device can be operated directly (e.g. awarning system, a pump etc.).The data for power supply are specified in chapter "Technical data".Application areaFunctional principleVoltage supply8 VEGAWAVE 63 • - transistor (NPN/PNP)3 Product description32258-EN-120418