1、ThedigitaltemperaturesensorofDS18B20ThedigitaltemperaturesensorofDS18B20,ThisproductusestheAmericanDALLAScompanysDS18B20networkdigitaltemperaturesensorchippackage.butbecomewear-resistanttouch,thephysicalvolumeissmall,convenient,packagingformisvaried,Suitableforallkindsofnarrowspaceindigitaltemperaturetestandcontrolfieldequipment.Unique1-WireTMinterfacerequiresonlyoneportpinforcommunication.Multidropcapabilitysimplifiesdistribute
2、dtemperaturesensingapplications,requiresnoexternalcomponents,Canbepoweredfromdataline.Powersupplyrangeis3.0Vto5.5V,Zerostandbypowerrequired,Measurestemperaturesfrom-55Cto+125C.Fahrenheitequivalentis-67Fto+257F,0.5Caccuracyfrom-10Cto+85C,Thermometerresolutionisprogrammablefrom9to12bits,Converts12-bittemperaturetodigitalwordin750ms(max.).User-definable,nonvolatiletemperaturealarmsettings,Alarmsearchcommandidentifiesandaddressesde
3、viceswhosetemperatureisoutsideofprogrammedlimits(temperaturealarmcondition).Applicationsincludethermostaticcontrols,industrialsystems,consumerproducts,thermometers,oranythermallysensitivesystem.1、thedescriptionoftechniquefunction:1)Single-lineinterfaceisunique,DS18B20whilelinkingwithmicroprocessoronlyneedalinecanimmediatelycarryoutthedoubleofmicroprocessorandDS18B20towardthecommunication.2)measurescope-55+125,propermeasureresolutions0.
4、5.3)supportseveralsetnetsfunction,severalDS18B20canmergeatuniquethreeon-line,themostcanmerge8,ifamountwasexcessive,itwouldmakepowersupplythepowerelectricvoltageoverlow,resultinthusthesignaldeliversofunsteady,therealizationsordertomeasuremore4)workthepower:35V|DC5)dontneedanyoutercirclecomponentintheuse6)measuretheresultmeasureawaystringwith912numberslinetransmission7)stainlesssteelsprotecttotakecareofdiameter68)be
5、applicabletoDN1525,DN40DN250variousequipmentsthatlieindustrialpipingofqualityandnarrowandsmallspacemeasure9)standardsinstallthethreadM10X1,M12X1.5,theG1|2termchooses10)PVCelectriccabledirectthelineorvirtuoustypeballtypeconnectlineboxline,theeasytoandotherelectricappliancesequipmentslinks.2、Application1)productsareapplicabletocoldstorage,foodCang,keepabottle,tele-communicationsengineroom,electricpowerengineroom,cableslote
6、tc.measuresmoderatecontrolrealm2)stalktiles,urnbody,theFangmachine,theaircondition,waitsindustrialequipmentsofnarrowandsmallspacetomeasureamoderatecontrol.3)caraircondition,refrigerator,coldcabinet,andmediumlowtemperaturedryboxofetc.s.4)providehot|makecoldpipingcaloriestocalculate,thecentralairconditiondividesathermalenergytocalculatetomeasureamoderatecontrolwithindustrialrealm3、Productmodelnumberandspecificationtypetemperatur
7、erangeinstallthreadelectriccablelengthapplypipingTS-18B20-55125no1.5mTS-18B20A-55125M10X11.5mDN1525TS-18B20B-551251/2GConnectslineboxDN40604、ConnectlineinstructionThecharacteristicsspecialfrontlineconnects,needsalinetocorrespondbylettertoordermoreabilityandsimplifiedadistributetypethetemperaturespreadthefeelingapplicationdidntneedanexternalcomponenttousedatatotallinepowersupply,theelectricvoltagescopehasneverneededtoprovideforusethep
8、owerdiagraphtemperaturescopeforthe3.0-5.5VsBE-55to+125.TheFahrenheitisequalhence-67-257Fahrenheitdegree-10goto+85accuracyinsidethescopeis0.5Thetemperaturespreadsafeelingmachinesprogrammableresolutiontoconvertinto12numberformatsfor912temperaturesbiggestbeworthto750amilli-ofsecondthecustomercandefineofnotandeasilylosesextemperaturetoreporttothepolicetoestablishanapplicationtoincludeaconstanttemperaturecontrol,industrials
9、ystem,consumeelectronicsproductthermometer,oranyhotsensitivesystemThenumberthermometerthatdescribestheDS18B20provides9-12(theprogrammableequipmentstemperaturereadanumber.TheinformationisdisheveledhairtosendtoconnectthroughalinefromtheDS18B20,socentralmicroprocessorandDS18B20onlyhaveaperlineconjunction.Forreadandwriteandthetemperatureconversioncanacquireenergyfromthedataline,dontneedtocircumscribethepower.BecauseeachDS18B20includesaspecialordinalnumber,severalds18bs20sesescanbeexistedtoatotallineatthesametime.Thismakesthetemperaturespreadafeelingmachinetoplaceinmanydifferentplaces.Itsuseisalotof,includeanairconditionenvironmentcontrol,detectequipmentsinsidethebuildingormachine,andcarryonprocessmonitorandcontrol.TheDS18B