Kev piav qhia ntxaws txog kev ntsuas tam sim no nrog digital multimeter
1. Ua ntej ntsuas qhov tam sim no, ua ntej txiav txim siab qhov xwm txheej ntawm qhov tam sim no (AC thiab DC) thiab qhov ntau ntawm qhov ntsuas tam sim no.
2. Xaiv cov cuab yeej ntsuas tsim nyog (xws li kev nyab xeeb, qhov tseeb, thiab yooj yim siv thaum ntsuas ntawm qhov chaw) thiab ntsuas ntsuas. Tom qab xaiv cov cuab yeej ntsuas tsim nyog, yog tias koj tsis yog tus kws tshaj lij tab sis tsuas yog tus neeg nyiam nyiam, nws raug nquahu kom nyeem cov lus qhia rau kev siv.
3. Cov kauj ruam ua haujlwm dav dav:
1) Yog tias nws yog cov khoom siv hluav taws xob me me (xws li cov khoom siv hluav taws xob), koj tuaj yeem nyeem cov lus piav qhia txog cov khoom siv hluav taws xob hauv cov khoom siv phau ntawv. Tshooj lus no qee zaum qhia ncaj qha txog qhov ntau ntawm tam sim no uas cov khoom siv hluav taws xob hla thaum lub sijhawm ua haujlwm hauv phau ntawv. Yog tias phau ntawv qhia tsuas yog qhia lub zog thiab qhov hluav taws xob siv, qhov tam sim no tuaj yeem suav nrog siv tus qauv "A=W/V". Thaum nws yog ib qho tsim nyog los ntsuas tag nrho cov tam sim no ntawm ntau yam khoom siv hauv kev ua haujlwm, qhov tam sim no ntawm ib qho khoom siv tau ntxiv los xam tag nrho cov tam sim no ntawm cov kab tseem ceeb.
Yog xav tau kev ntsuas tiag tiag:
(1) Xaiv cov iav uas tsim nyog ( ntsuas tam sim no, tus nqi tam sim no)
(2) Tshem tawm cov kab kuaj kab (tab sis cov khoom siv hluav taws xob thiab cov khoom thauj tsis tuaj yeem raug txiav, txwv tsis pub nws yog luv luv Circuit Court!), thiab ntxig lub multimeter rau hauv kab (nco ntsoov tias nws txuas nrog hauv series). Lub sijhawm no, qhov tsis kam ntawm multimeter yog yuav luag xoom, thiab tam sim no ntws los ntawm multimeter yog sib npaug rau qhov tam sim no ntws los ntawm cov khoom siv hluav taws xob thiab kev thauj khoom.
2) Yog tias nws yog cov khoom siv hluav taws xob loj (ua haujlwm voltage feem ntau yog li ntawm 220V txog 380V), nws raug nquahu kom siv lub clamp hom ammeter (multimeter). Lub hauv paus ntsiab lus yog los tsim ib qho chaw kaw electromagnetic rau ntawm lub zog hluav taws xob, thiab cov kev hloov pauv hauv electromagnetic teb ua rau lub tshuab hluav taws xob multimeter los tsim tam sim no. Nws muaj qhov sib npaug ntawm qhov tam sim no thiab ntsuas kab tam sim no, kom cov kab tam sim no tuaj yeem nyeem ncaj qha hauv ammeter.
