Error Cause RemovalUnfavourable in-stallation locationMount the instrument at a location inthe vessel where no dead zones ormounds can form.Buildup on thevibrating elementCheck the vibrating element and thesensor if there is buildup and removeit.Wrong mode se-lectedSet the correct mode on the modeswitch (overflow protection, dry runprotection). Wiring should be carriedout according to the quiescent currentprinciple.Signal lamp fla-shes redError on the vib-rating elementCheck if the vibrating element isdamage or extremely corroded.Interference onthe electronicsmoduleExchanging the electronics moduleinstrument defec-tiveExchange the instrument or send it infor repairDepending on the failure reason and measures taken, the stepsdescribed in chapter "Set up" must be carried out again, if necessary.7.3 Exchanging the electronics moduleIn general, all electronics modules of series VB60 can be inter-changed. If you want to use an electronics module with a differentsignal output, you can download the corresponding operatinginstructions manual from our homepage under Downloads.With EEx d instruments, the housing cover may only be opened if thereis no explosive atmosphere present.Proceed as follows:1 Switch off power supply2 Unscrew the housing cover3 Lift the opening levers of the terminals with a screwdriver4 Pull the connection cables out of the terminals5 Loosen the two screws with a screw driver (Torx size T10 or slot 4)Reaction after fault rec-tificationVEGAVIB 62 • - transistor (NPN/PNP) 237 Maintenance and fault rectification29273-EN-100805