103 Product descriptionVEGAFLEX 86 • Modbus51519-EN-180508Upper medium (L2)• The upper medium must not be conductive• The dielectric constant of the upper medium or the actual distanceto the interface must be known (input required). Min. dielectric con-stant: 1.6. You can find a list of dielectric constants on our homepage: www.vega.com.• The composition of the upper medium must be stable, no varyingproducts or mixtures• The upper medium must be homogeneous, no stratificationswithin the medium• Min. thickness of the upper medium 50 mm (1.97 in)• Clear separation from the lower medium, emulsion phase or detri-tus layer max. 50 mm (1.97 in)• If possible, no foam on the surfaceLower medium (L1)• The dielectric constant must be 10 higher than the dielectricconstant of the upper medium, preferably electrically conductive.Example: upper medium dielectric constant 2, lower medium atleast dielectric constant 12.Gas phase (L3)• Air or gas mixture• Gas phase - dependent on the application, gas phase does notalways exist (d2 = 0)The instrument is always preset to the application "Level measure-ment".For the interface measurement, you can select the requested outputsignal with the setup.3.3 Packaging, transport and storageYour instrument was protected by packaging during transport. Itscapacity to handle normal loads during transport is assured by a testbased on ISO 4180.The packaging of standard instruments consists of environment-friendly, recyclable cardboard. For special versions, PE foam or PEfoil is also used. Dispose of the packaging material via specialisedrecycling companies.Transport must be carried out in due consideration of the notes on thetransport packaging. Nonobservance of these instructions can causedamage to the device.The delivery must be checked for completeness and possible transitdamage immediately at receipt. Ascertained transit damage or con-cealed defects must be appropriately dealt with.Up to the time of installation, the packages must be left closed andstored according to the orientation and storage markings on theoutside.Prerequisites for inter-face measurementOutput signalPackagingTransportTransport inspectionStorage