Introductionofwatt-hourmeter： SR01andSR02andDD1356typessingle-phasewatt-hourmetersareofinductivetypes,usedformeasuringtheactiveelectricalenergyofsingle-phaseAClinewhosereferencefrequencyis50(60)Hz.Themetersshouldbefixedinstalledindoors(outdoors),theapplicableenvironmentaltemperatureis 10℃-50℃,relativehumiditynotexceed85%,theambientairshouldbefreeofcorrosivegas,andtheproductsshouldbekeptawayfromdust,saltfogorcondensation. Thetechnicalindexesofwatt-hourmeterareinaccordancewithGB/T15283-1994,IEC521-1998andANSIC12.1-2001.TheproductsnotonlyhavetheadvantagesofFDtypeseries,butalsohavetheoutlineandwiringmodesoftheOccidentconventionaltypes,theycanbeconvenientlywiredinsingle-phasetwo-wireandsingle-phasethree-wirelines,andhaveagoodsaleintheinternationalmarket.Structuralfeatures: Baseshell:polycarbonateinjection,goodinsulation,andreliableinstallation; Bedframe:aluminum-nickel-cobaltdampingmagneticsteelandsilicon-aluminumalloyintegratedcasting,favorablestrengthandfinestability; Electromagneticelements:siliconsteelsheetofhighmagneticproperty,current-voltageironcorerivetedbyquickworkingpunch,extendedmagneticpoleface,specialheattreatmentandsoonenabletheproducttohavewidevoltagerange,lowpowerconsumption,widecurrentload,highsensitivity,etc; Rotatingelementandbearing:super-highpurityaluminumsheetandmagneticbearingwithratherlowrunningwearenablethemetertorunsteadilyandstartupsmoothlywithoutcreepingphenomenon; Label:aspecialtreatedaluminumplatewithfavorableradiationprotectioncapability; Register:therearedrumandpointertwotypes.Itadoptsmicrodiecastandcastingplastictechnologies,theregisterrunsflexibly,withlowfrictionalmomentandstablerunning; Shell:glassshellwithsuper-hightransparency.TechnicalparametersModelSR01,SR02D,D1356Reference120V;240VCurrentbasic(Thelargestcurrent)15(100)30(200)AHz50or60ConstantCounter5wholeblackAnalogdrumandawheelKg1.6KgSizeDetails,click