產(chǎn)品名稱：三和校準(zhǔn)儀 產(chǎn)品型號：STD-2000 產(chǎn)品品牌：日本三和SANWA STD-2000,標(biāo)準(zhǔn)校準(zhǔn)儀簡介： Desiredvaluesettingispossiblebychoosinganumberforeachdigit.FiverangescanbeswitchedrespectivelyforeachfunctionofDCcurrent,DCvoltage,ACvoltage,andACcurrent.Theresistanceiscomprisedoftwotypesofterminals:acommonterminalfor0-200k and10 step,andaterminaldedicatedforswitchingof6rangesbetween190 and19M .Useofelectronicsoft-touchpushbuttonswitchesexceptthepowerswitch.Speedyvaluesettingandoperationarepossible.Therelayofthelowthermalelectromotiveforcetypeandsemiconductorswitchareusedforcircuitswitchestoenhanceheatresistanceanddurability.Overloadprotectionincaseoflowvoltageandcurrentisperformedonthesemiconductorcircuit,andoverloadprotectionincaseofmediumandhighvoltageisachievedbyreleasingtheoutputterminalandoutputvoltagecircuittoassuresafety.Whenoverloadcurrentrunsinthevoltagerangeof20Vormore,theLEDforDCandACresettinglightsuptogivewarning. 技術(shù)指標(biāo)：