Vega VEGAPULS 62 Operating Instructions Manual

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Contents

Vega VEGAPULS 62 Operating Instructions Manual Manual pdf 59 page image

599 Diagnosis, asset management and serviceVEGAPULS 62 • 4 … 20 mA/HART - two-wire41718-EN-140209CodeText mes-sageCause RectificationM500Error with thereset deliverystatus– With the reset to deliverystatus, the data could notbe restored– Repeat reset– Load XML file with sensordata into the sensorM501Error in thenon-activelinearizationtable– Hardware error EEPROM – Exchanging the electronics– Send instrument for repairM502Error in thediagnosismemory– Hardware error EEPROM – Exchanging the electronics– Send instrument for repairM503Reliability toolow– The echot/noise ratio is thesmall for a reliable meas-urement– Check installation andprocess conditions– Clean the antenna– Change polarisation direc-tion– Use instrument with highersensitivityM504Error on andevice inter-face– Hardware defect – Check connections– Exchanging the electronics– Send instrument for repairM505No echo avail-able– Level echo can no longerbe detected– Clean the antenna– Use a more suitableantenna/sensor– Remove possible falseechoes– Optimize sensor positionand orientation9.4 Rectify faultsThe first measures are:• Evaluation of fault messages, for example via the display andadjustment module• Checking the output signal• Treatment of measurement errorsFurther comprehensive diagnostics options are available with a PCwith PACTware and the suitable DTM. In many cases, the reasons canbe determined in this way and faults rectified.Connect a multimeter in the suitable measuring range according tothe wiring plan. The following table describes possible errors in thecurrent signal and helps to remove them:Procedure for fault recti-ficationCheck the 4 … 20 mAsignal