123 Product descriptionVEGAPULS 69 • Modbus and Levelmaster protocol47252-EN-180627• Scan the Data Matrix code on the type label of the instrument or• Enter the serial number manually in the appThe instrument contains two different electronics in its housing cham-bers:• The Modbus electronics for power supply and communication withthe Modbus-RTU• The sensor electronics for the actual measuring tasks21Fig. 2: Position of Modbus and sensor electronics1 Modbus electronics2 Sensor electronicsThis operating instructions manual applies to the following instrumentversions:• Hardware version from 1.0.3• Software version from 1.3.1The scope of delivery encompasses:• Radar sensor• Hexagon socket wrench (for instruments with swivel holder)• Documentation– Quick setup guide VEGAPULS 69– Instructions for optional instrument features– Ex-specific "Safety instructions" (with Ex versions)– If necessary, further certificatesInformation:In this operating instructions manual, the optional instrument featuresare described. The respective scope of delivery results from the orderspecification.3.2 Principle of operationThe VEGAPULS 69 is a radar sensor for continuous level measure-ment of bulk solids under different process conditions.It is ideal for level measurement in very high silos, large bunkers andsegmented vessels. The very good signal focussing ensures a simplesetup and reliable measurement.The VEGAPULS 69 is available with different antenna systems:Electronics designScope of this operatinginstructions manualScope of deliveryApplication area