Yuav ua li cas ntsuas tus nqi tiv thaiv nrog multimeter
Muaj ntau ntau yam khoom siv hauv kev lag luam, txhua qhov yuav muaj qhov sib txawv thaum siv. Raws li ib tug multimeter feem ntau siv nyob rau hauv kev lag luam, tib neeg kuj yuav tsum tau them sai sai rau thaum siv nws.
Cov ntsiab lus yuav tsum nco ntsoov thaum siv multimeter los ntsuas qhov tsis kam:
Multimeters tau muab faib ua ob hom: ib txwm multimeters thiab digital multimeters. Cov tshuaj multimeters yog cov pointer electromagnetic deflection hom. Ua ntej txhua qhov kev siv, kev kho tshuab xoom yog xav tau. Kev siv yog cumbersome thiab kev nyeem ntawv ntawm qhov taw qhia yog subjective thiab tsis yog. Tam sim no nws tsis tshua siv.
Cov multimeter digital tuaj yeem tso saib cov lej ncaj qha yam tsis tau soj ntsuam qhov ntsuas rau kev nyeem ntawv, thiab qhov tshwm sim yog qhov tseeb dua, uas yog hom tseem ceeb ntawm multimeter tam sim no siv.
Kev ceev faj thaum ntsuas tus nqi tsis kam ntawm multimeter:
1. Ua ntej siv lub tshuab multimeter, "txhim kho xoom xoom" yuav tsum tau ua ua ntej, uas yog, thaum tsis muaj hluav taws xob ntsuas, ua tus pointer ntawm multimeter taw tes rau txoj hauj lwm ntawm xoom voltage lossis xoom tam sim no.
2. Nyob rau hauv tus txheej txheem ntawm kev siv lub multimeter, tsis txhob kov cov hlau ib feem ntawm kev xeem txhuas nrog koj ob txhais tes, yog li ntawd nyob rau hauv ib tes, qhov tseeb ntawm kev ntsuas yuav tau guaranteed, thiab ntawm qhov tod tes, tus kheej kev nyab xeeb kuj muaj. yuav lav.
3. Thaum ntsuas qee qhov hluav taws xob, nws tsis tuaj yeem hloov lub zog thaum ntsuas, tshwj xeeb tshaj yog thaum ntsuas qhov hluav taws xob siab lossis siab tam sim no, yuav tsum tau them nyiaj ntau dua. Txwv tsis pub, lub multimeter yuav puas. Yog tias koj xav tau hloov lub zog, koj yuav tsum txiav tawm qhov kev xeem ua ntej, thiab tom qab ntawd ntsuas tom qab hloov lub zog.
4. Thaum siv lub multimeter, nws yuav tsum tau muab tso rau kab rov tav kom tsis txhob ua yuam kev. Nyob rau tib lub sijhawm, nws tseem yuav tsum tau zam kom tsis txhob muaj kev cuam tshuam ntawm sab nraud magnetic teb ntawm lub multimeter.
5. Tom qab siv lub multimeter, qhov hloov pauv yuav tsum tau muab tso rau hauv qhov siab tshaj plaws ntawm AC voltage. Yog tias nws tsis siv sijhawm ntev, lub roj teeb hauv lub tshuab hluav taws xob yuav tsum tau muab tshem tawm los tiv thaiv lub roj teeb ntawm corroding lwm yam khoom hauv lub ntsuas.
Multimeter yog ib qho cuab yeej siv ntau yam thiab ntau yam ntsuas. Nws tuaj yeem ntsuas qhov tsis kam ntawm cov khoom yuav tsum ntsuas, tab sis kuj ntsuas qhov DC voltage. Raws li cov cuab yeej ntsuas tseem ceeb hauv kev lag luam, tsuas yog los ntawm kev paub txog cov ntsiab lus uas yuav tsum tau them sai sai rau thaum ntsuas nws tuaj yeem ua nws lub luag haujlwm zoo dua.
