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BellinghamStanleyofferanumberofAbberefractometersandachoicecanbemadeinaccordancewiththemeasurementrequirementandbudgetavailability.TheAbbe60directreadingmodelsaremanufacturedtoextremelyhighstandards.ThelatestdesignsincorporateanexternallymountedLEDlightsourceforsampleilluminationwithasecondinternallymountedLEDforscaleillumination.Wavelengthcompensationisbyachromatizingprismsto589.3nm.RefractiveIndexmeasurementsaremadedirectlyfromthescaleto0.001RIallowingestimationto0.0001RI.TheAbbe5refractometerhassimilaroperationalfeaturestotheAbbe60buthasbeendesignedwithbudgetinmindsoisidealforuseinschoolscollegesandcommerciallaboratorieswithalowthroughputofsamples.RefractiveIndexreadingsmaybereaddirectlyfromthescaleto0.0005RI.SimpledispersionmeasurementsmayalsobeperformedwiththeAbbe5Refractometer.Someapplicationsdictatethatreadingsmustbecarriedoutatwavelengthsotherthan589.3nm.TheAbbe60EDand60LRmodelsfacilitatemeasurementatanywavelengthwithinthevisiblespectrumandbyadoptingamonochromaticlightsourceandanevenlydividedscalebyusingPCsoftwarereadingsmaybeobtainedtoanaccuracyof0.00004RI.Typicalapplicationsincludeinvestigationofpolymerlmshydrocarbonsbreopticssemi-solidsandglass.Afullsetofaccessoryitemsareavailableincludingspectralemissionlampsinterferenceltersetc.detailsofwhichmaybefoundontheCompanywebsite.Allmodelshaveadigitaltemperaturedisplayandmaybeconnectedtoawaterbathfortemperaturecontrol.10-9960DR1.30-1.74x0.0010-95x0.510-0360951.30-1.535x0.0010-50x0.250-95x0.110-0460ED1.30-1.74equivalentto0-95equivalentto10-0660LR1.20-1.70equivalentto0-95equivalentto44-501Abbe51.30-1.70x0.00050-95x0.25Theworkingtemperaturerangefortheseinstrumentsisfrom5to75CSodiumLampOuttfreestandingfor60EDand60LR59-0159-06SpectralLampOuttfreestandingfor60EDand60LR59-2059-25Abbe5LightSource230V50-60Hz44-520Abbe5LightSource110V50-60Hz44-5256CodeModelScaleandScaleDivisionRefractiveIndexSugarBrixDescriptionCode230VCode110VAbbeRefractometersAbbe60Abbe5