Yuav ua li cas siv ib tug multimeter los xyuas cov qhib circuits thiab luv circuits
1) Nws yog ib qho qhib Circuit Court, thiab tus lej me qhia 0 teev yog luv luv Circuit Court.
Tsis txhob siv ib lub multimeter los ntsuas qhov to. Lub hwj chim ntawm lub multimeter feem ntau yog 9V roj teeb. Tsis muaj qhov xau ntawm qhov hluav taws xob tsawg tsis txhais tau tias tsis muaj qhov xau ntawm 220 qhov hluav taws xob siab. Siv lub megometer nrog tsawg kawg 500V los ntsuas. Ob lub clamps ntawm lub megometer txuas nrog ob kawg ntawm kab thiab co. kov, yog hais tias tus 'meter' pointer txav mus rau xoom, nws yog qhov to.
Peb lub ntsiab lus ntawm ib lub voj voog yog cov khoom siv hluav taws xob, kev thauj khoom, thiab kev sib txuas nruab nrab. Cov khoom siv hluav taws xob yog cov khoom siv uas muab hluav taws xob hluav taws xob rau lub nra. Lub load yog ib qho cuab yeej uas tau txais hluav taws xob hluav taws xob thiab hloov mus rau lwm hom hluav taws xob. Qhov hloov pauv hauv qhov txuas nruab nrab yog txuas lossis txiav tawm lub voj voog, thiab cov xaim xaim xaim hluav taws xob.
Cias muab, ib qho luv luv Circuit Court yog qhov tsis muaj load, tsuas yog ob lub ntsiab lus: cov khoom siv hluav taws xob thiab kev sib txuas nruab nrab. Qhov qhib Circuit Court tsis muaj qhov sib txuas nruab nrab thiab tsuas yog muaj ob lub ntsiab lus: lub zog thiab kev thauj khoom. Piv txwv li, qhov hloov pauv tsis raug kaw thiab cov xaim raug kaw. Leakage yog tam sim no to ntawm cov khoom nyob los yog cov khoom siv vim kev laus ntawm cov txheej txheem rwb thaiv tsev lossis lwm yam laj thawj. Rau qee qhov laj thawj, muaj qee qhov muaj peev xwm sib txawv ntawm cov cuab yeej txuas nrog thiab lub ntiaj teb, uas yog cov xau. Yog li ntawd, kev xau tuaj yeem tshwm sim hauv cov khoom siv hluav taws xob, hauv kev thauj khoom, lossis hauv kev sib txuas nruab nrab.
Multimeter los xyuas luv luv Circuit Court, qhib Circuit Court thiab to
Siv txoj kev ntsuas kev tiv thaiv los xyuas qhov luv luv Circuit Court thiab qhib Circuit Court faults los yog siv lub buzzer iav los xyuas qhov luv Circuit Court thiab qhib Circuit Court faults.
Thaum siv multimeter los xyuas cov luv luv Circuit Court thiab qhib Circuit Court, thiab thaum siv txoj kev tiv thaiv kev tiv thaiv, xyuas kom meej tias lub zog hluav taws xob raug txiav tawm. Thaum kuaj xyuas cov load lossis kab, xaiv cov qib uas tsim nyog. Nws pom tias kev nyeem ntawv ntawm multimeter yog xoom. Yog hais tias lub multimeter raug muab tso tseg, qhov kev nyeem ntawv tseem yog xoom. Yuav tsum muaj qhov luv luv. Nws tau pom tias qhov kev nyeem ntawv qhia tau hais tias lub cim overflow "1". Tom qab kho qhov kev tiv thaiv qib nce siab, lub cim overflow "1" tseem tshwm sim, uas txhais tau tias yuav tsum muaj qhov qhib Circuit Court. Siv lub buzzer teeb tsa ntawm lub multimeter los kuaj xyuas luv luv thiab qhib circuits. Qhov yuav tsum tau ua ua ntej yog txiav tawm lub zog hluav taws xob. Thaum lub sij hawm kuaj pom, nws tau pom Yog tias lub multimeter beeps, nws yuav tsum yog luv luv Circuit Court. Yog tias lub cim overflow 1 tshwm sim, nws tsis tas txhais tau tias muaj qhov qhib Circuit Court. Nyob rau lub sijhawm no, siv qhov chaw ua haujlwm siab ntawm multimeter los ntsuas txuas ntxiv. Yog tias lub cim overflow 1 tseem tshwm sim, nws txhais tau tias muaj qhov qhib Circuit Court.
Multimeter los kuaj xyuas cov dej xau
Raws li cov lus piav qhia ntawm cov dej xau, nws tuaj yeem pom tias vim kev laus ntawm cov txheej txheem rwb thaiv tsev ntawm cov khoom thauj, cov khoom siv hluav taws xob, kev sib txuas nruab nrab lossis lwm yam laj thawj, peb lub ntsiab lus saum toj no yuav muaj qhov sib txawv nrog lub ntiaj teb. Yog tias koj siv tus cwj mem ntsuas los ntsuas nws, lub raj neon yuav twv yuav raug hu mus ntxiv. Thaum kuaj xyuas nrog lub tshuab multimeter, ib qho ntawm cov kev xeem coj tau txuas nrog cov hlau casing ntawm cov khoom siv hluav taws xob lossis cov khoom siv casing, thiab lwm yam, thiab lwm yam kev sim cov hlau lead yog txuas nrog lub ntiaj teb. Nws muaj qhov voltage ntawm lawv. Qhov luaj li cas ntawm cov ntawv nyeem multimeter qhia seb qhov xau tam sim no ntawm ib qho ntawm peb lub ntsiab lus: thauj khoom, qhov nruab nrab txuas, thiab cov khoom siv hluav taws xob yog qhov hnyav.
Ntawm lawv, qhov zoo tshaj plaws yog los ntsuas qhov to. Lub sijhawm no, nrhiav qhov chaw hauv av zoo ntawm qhov chaw kuaj pom, xws li cov kav dej zoo, lub ntiaj teb ntub dej, thiab lwm yam. Tom qab ntawd txuas ib qho ntawm cov kev xeem coj ntawm multimeter mus rau lub plhaub ntawm lub cev raug them, thiab txuas rau lwm qhov. xeem coj mus rau qhov chaw xaiv av. Nyob rau hauv txoj kev no, cov nyhuv leakage ntawm kev tshawb pom yog pom tseeb dua.
