产品名称:三和校准仪 产品型号:STD-2000 产品品牌:日本三和SANWA STD-2000,标准校准仪简介: Desiredvaluesettingispossiblebychoosinganumberforeachdigit.FiverangescanbeswitchedrespectivelyforeachfunctionofDCcurrent,DCvoltage,ACvoltage,andACcurrent.Theresistanceiscomprisedoftwotypesofterminals:acommonterminalfor0-200k and10 step,andaterminaldedicatedforswitchingof6rangesbetween190 and19M .Useofelectronicsoft-touchpushbuttonswitchesexceptthepowerswitch.Speedyvaluesettingandoperationarepossible.Therelayofthelowthermalelectromotiveforcetypeandsemiconductorswitchareusedforcircuitswitchestoenhanceheatresistanceanddurability.Overloadprotectionincaseoflowvoltageandcurrentisperformedonthesemiconductorcircuit,andoverloadprotectionincaseofmediumandhighvoltageisachievedbyreleasingtheoutputterminalandoutputvoltagecircuittoassuresafety.Whenoverloadcurrentrunsinthevoltagerangeof20Vormore,theLEDforDCandACresettinglightsuptogivewarning. 技术指标: