Yuav ua li cas siv ib tug multimeter los xyuas lub Circuit Court
Thaum them, siv AC voltage iav lossis DC voltage iav nyob ntawm qhov xwm txheej! Siv hluav taws xob thaiv hluav taws xob txhawm rau txheeb xyuas cov kab hluav taws xob hla thiab luv luv yam tsis muaj dots!
Lub multimeter muaj ib lub buzzer thaiv, uas yog siv ob lub xeem cwj mem los ntsuas tib cov hlau. Yog tias muaj qhov luv luv, yuav tsis muaj lus teb. Yog tias nws yog channel, yuav muaj suab nrov. Qee lub sij hawm thaum lub cuab yeej nws tus kheej raug them vim qhov av tsis zoo, koj tuaj yeem siv tus cwj mem liab ntawm lub multimeter los muab cov cim dub rau ntawm lub plhaub. Piv nrog rau kev sib cuag ncaj qha rau hauv av, lub zog ntawm cov xau tam sim no ntawm lub casing tuaj yeem ntsuas tau, yog li nws tuaj yeem siv rau hauv qhov chaw ua haujlwm. Nws kuj tseem txuas nrog hauv series rau hauv Circuit Court los ntsuas AC thiab DC tam sim no.
Txhawm rau xyuas seb qhov hluav taws xob puas los yog tsis, koj yuav tsum siv megohmmeter (shake meter), vim hais tias qhov voltage ntawm multimeter yog qis (9v), thiab qhov voltage ntawm megohmmeter siab dua 500v. Vim tias qhov ua haujlwm voltage ntawm txoj kab yog 220v, nws tsis yooj yim los kuaj xyuas kab uas tsis muaj qhov pom tseeb. Yog tias koj xav siv lub ntsuas hluav taws xob digital los kuaj xyuas cov xaim hluav taws xob, koj yuav tsum xub txiav tawm lub hwj chim. Tom qab tso tawm lub voj voog, siv cov iav tiv thaiv, 2M iav los ntsuas, cov zaub ib txwm yog 1 (infinite).
Txhawm rau ntsuas seb txoj kab txuas nrog, koj tuaj yeem ntsuas nws nrog ohm iav ntawm multimeter. Thaum ntsuas, nws yog ib qho tsim nyog los xaiv lub ntsuas ntsuas ze rau ntawm deflection 0 ohm cov ntaub ntawv. Yog hais tias cov kab nyob rau hauv Circuit Court, txuas ib kawg ntawm kab (kawg A) mus rau 100 ohm ntau yam ntawm multimeter (liab test lead), thiab txuas cov dub xeem lead mus rau lwm kawg (kawg B) ntawm kab mus ntsuas. Yog tias qhov ntsuas tau yog xoom, nws txhais tau tias qhov no Txoj kab txuas nrog, tseem hu ua txoj hauv kev, tsuas yog txoj hauv kev tuaj yeem tam sim no dhau los ntawm Circuit Court; Yog hais tias lub ohmmeter pointer ntawm lub multimeter tsis nyob ze rau xoom ohm los ntawm A kawg mus rau B kawg ntawm kab, kab twb nyob rau hauv lub xeev qhib, thiab lub disconnection yog hu ua. qhib Circuit Court lossis qhib Circuit Court.
