Vega VEGAPULS 63 Operating Instructions Manual

Also see for VEGAPULS 61: Operating instructions Quick setup guide Operating instructions Operating instructions Operating instructions

Vega VEGAPULS 63 Operating Instructions Manual Manual pdf 52 page image

529 Diagnosis, asset management and serviceVEGAPULS 63 • HART and accumulator pack40794-EN-140922Measurement error during emptyingFault description Error pattern Cause Rectification11. Measured value re-mains unchanged inthe close range duringemptyingLeveltime0– False signal larger than thelevel echo– Level echo too small– Eliminate false signal in theclose range. Check: Antennamust protrude from the socket– Remove contamination on theantenna– In case of interferences due toinstallations in the close range:Change polarisation direction– After removing the false signals,the false signal suppressionmust be deleted. Carry out anew false signal suppression12. Measured valuejumps towards 0 %during emptyingLeveltime0– Echo from the tank bottomlarger than the level echo, forexample, with products withεr < 2.5 oil-based, solvents– Check parameters Type ofmedium, Vessel height andFloor form, adapt if necessary13. Measured valuejumps sporadically to-wards 100 % duringemptyingLeveltime0– Varying condensation or con-tamination on the antenna– Carry out false signal suppres-sion or increase false signalsuppression in the close rangeby editing– With bulk solids, use radar sen-sor with purging air connectionDepending on the reason for the fault and the measures taken, thesteps described in chapter "Setup" must be carried out again or mustbe checked for plausibility and completeness.Should these measures not be successful, please call in urgent casesthe VEGA service hotline under the phone no. +49 1805 858550.The hotline is also available outside normal working hours, sevendays a week around the clock.Since we offer this service worldwide, the support is provided inEnglish. The service itself is free of charge, the only costs involved arethe normal call charges.9.5 Exchanging the electronics moduleIf the electronics module is defective, it can be replaced by the user.In Ex applications, only instruments and electronics modules with ap-propriate Ex approval may be used.If there is no electronics module available on site, the electronicsmodule can be ordered through the agency serving you. The electron-ics modules are adapted to the respective sensor and differ in signaloutput or voltage supply.The new electronics module must be loaded with the default settingsof the sensor. These are the options:• In the factory• Or on site by the userReaction after fault recti-fication24 hour service hotline