Vega VEGAVIB 63 Operating Instructions Manual

Also see for VEGAVIB 63: Operating instructions Safety instructions Operating instructions Operating instructions Operating instructions

Vega VEGAVIB 63 Operating Instructions Manual Manual pdf 23 page image

237 Maintenance and fault rectificationVEGAVIB 63 • NAMUR31217-EN-1703157 Maintenance and fault rectification7.1 MaintenanceIf the device is used properly, no special maintenance is required innormal operation.7.2 Rectify faultsThe operator of the system is responsible for taking suitable meas-ures to rectify faults.VEGAVIB 63 offers maximum reliability. Nevertheless, faults can oc-cur during operation. These may be caused by the following, e.g.:• Sensor• Process• Voltage supply• Signal processingThe first measure to take is to check the output signal. In many cases,the causes can be determined this way and the faults quickly rectified.Should these measures not be successful, please call in urgent casesthe VEGA service hotline under the phone no. +49 1805 858550.The hotline is manned 7 days a week round-the-clock. Since we offerthis service worldwide, the support is only available in the Englishlanguage. The service is free, only standard call charges are incurred.Error Reason RectificationVEGAVIB 63 signals"covered" without beingsubmerged (overfill pro-tection)VEGAVIB 63 signals "un-covered" when beingsubmerged (dry run pro-tection)Operating voltage too low Check operating voltageElectronics defective Press the characteristic reversal switch. If the instru-ment then changes the mode, the vibrating elementmay be covered with buildup or mechanically damaged.Should the switching function in the correct mode stillbe faulty, return the instrument for repair.Push the characteristic reversal switch. If the instrumentthen does not change the mode, the electronics mod-ule may be defective. Exchange the electronics module.Unfavourable installationlocationMount the instrument at a location in the vessel whereno dead zones or air bubbles can form.Buildup on the vibrating el-ementCheck the vibrating element and the sensor for buildupand remove the buildup if there is any.Wrong characteristic se-lectedSet the correct characteristics on the characteristics re-versal switch (overflow protection, dry run protection).Wiring should be carried out according to the idle cur-rent principle.Reaction when malfunc-tion occursCauses of malfunctionFault rectification24 hour service hotlineChecking the switchingsignal