7 Maintenance and fault rectification7.1 MaintenanceWhen used in the correct way, no special maintenance is required innormal operation.7.2 Remove interferencesThe operator of the system is responsible for taken suitable measuresto remove interferences.A maximum of reliability is ensured. Nevertheless, faults can occurduring operation. These may be caused by the following, e.g.:l Sensorl Processl Power supplyl Signal processingThe first measure to be taken is to check the output signal. In manycases, the causes can be determined this way and the faults rectified.However, should these measures not be successful, call the VEGAservice hotline in urgent cases under the phone no. +49 1805 858550.The hotline is available to you 7 days a week round-the-clock. Sincewe offer this service world-wide, the support is only available in theEnglish language. The service is free of charge, only the standardtelephone costs will be charged.? Control lamps offl Voltage supply interrupted.à Check the voltage supply and the cable connectionà Exchange the electronics module? Signal lamp flashes redl There was no load connected when connecting to powersupplyà Connect the instrument correctlyà Check if the tuning fork is damage or extremely corroded? The signal lamp flashes alternately red and greenl Shortcircuit or overloadà Check the electrical connectionDepending on the failure reason and measures taken, the stepsdescribed in chapter "Set up" must be carried out again, if necessary.Reaction when malfunc-tions occurCauses of malfunctionFault rectification24 hour service hotlineChecking the switchingsignalReaction after fault rec-tification20 VEGASWING 51 • - contactless electronic switch7 Maintenance and fault rectification30212-EN-081121