Vega VEGAFLEX 82 Operating Instructions Manual

Also see for VEGAFLEX 82: Safety manual Supplementary instructions Quick setup guide Operating instructions Operating instructions

Contents

Vega VEGAFLEX 82 Operating Instructions Manual Manual pdf 65 page image

6510 Diagnostics and servicingVEGAFLEX 82 • 4 … 20 mA/HART - two-wire44222-EN-170220Measurement error during emptyingFault description Error pattern Reason Rectification7. Measured value re-mains unchanged inthe close range duringemptyingLeveltime0• False signal larger than the levelecho• Level echo too small• Eliminate false signals in theclose range• Remove contamination on theprobe. After having removed thesource of the false signals, thefalse signal suppression mustbe deleted.• Carry out a new false signalsuppression8. Measured value re-mains reproduciblein one position duringemptyingLeveltime0• Stored false signals in thisposition are larger than the levelecho• Delete false signal suppression• Carry out a new false signalsuppressionDepending 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.10.5 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.With SIL qualified instrument, only a respective electronics modulewith SIL qualification must be used.The electronics modules are adapted to the respective sensor. Hencethe new electronics module must be loaded with the default settingsof the sensor. These are the possibilities:• In the factory• Or on site by the userIn the factoryOrder the spare electronics module from the agency serving your.When ordering the spare electronics module, you have to state theserial number of the sensor.The serial numbers are stated on the type label of the instrument,inside the housing or on the delivery note.The spare electronics module is provided with the serial number ofthe appropriate sensor. Check before mounting if the serial numberReaction after fault recti-fication24 hour service hotline