Vega VEGAFLEX 65 Operating Instructions Manual

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Vega VEGAFLEX 65 Operating Instructions Manual Manual pdf 22 page image

6.4 Setup stepsAfter connecting VEGAFLEX 65 to power supply or after a voltagerecurrence, the instrument carries out a self-check for approx. 30seconds:l Internal check of the electronicsl Indication of the instrument type, the firmware as well as thesensor TAGs (sensor designation)l Output signal jumps briefly (approx. 10 seconds) to the set faultcurrentThen the corresponding current is outputted to the cable (the valuecorresponds to the actual level as well as the settings already carriedout, e.g. factory setting).In HART-Multidrop mode (several sensors on one input) the addressmust be set before continuing with the parameter adjustment. You willfind a detailed description in the operating instructions manual"Indicating and adjustment module" or in the online help of PACTwareor DTM.HART modeStandardAddress 0As VEGAFLEX 65 is a distance measuring instrument, the distancefrom the sensor to the product surface is measured. To have the realproduct level displayed, an allocation of the measured distance to thepercentage height must be made. To carry out this adjustment, thedistance is entered with full and empty vessel. If these values are notknown, an adjustment with the distance values, e.g. 10 % and 90 % isalso possible. Starting point for these distance specifications is alwaysthe seal surface of the thread or flange. With these settings, the reallevel is calculated. Furthermore the operating range of the sensor islimited from maximum to the required range.The real product level during this adjustment is not important, becausethe min./max. adjustment is always carried out without changing theproduct level. These settings can be made ahead of time without theinstrument having to be installed.In the main menu item "Basic adjustment", the individual submenuitems should be selected one after the other and provided with thecorrect parameter values.Caution:If there is a separation of different liquids in the vessel, e.g. bycondensation, VEGAFLEX 65 will always detect the medium with thehigher dielectric figure (εr).Keep in mind that interfaces can cause faulty measurements.Switch-on phaseAddress setting HART-MultidropParameter adjustment22 VEGAFLEX 65 • 4 … 20 mA/HART - four-wire6 Set up with the indicating and adjustment module PLICSCOM31846-EN-120329