Yuav ua li cas txheeb xyuas Circuit Court nrog multimeter?
Thaum them, siv AC voltage lossis DC voltage raws li qhov xwm txheej! Siv cov teeb meem hluav taws xob txhawm rau txheeb xyuas txoj hauv kev hauv Circuit Court thiab luv luv yam tsis muaj dots!
Lub multimeter muaj lub buzzer thaiv, uas yog siv ob qho kev xeem coj los ntsuas tib lub xov hlau. Yog tias muaj qhov luv luv, yuav tsis muaj lus teb. Yog hais tias nws yog ib lub voj voog, yuav muaj suab nrov. Qee lub sij hawm thaum lub cuab yeej nws tus kheej raug them vim qhov tsis zoo hauv av, koj tuaj yeem siv cov tshuaj ntsuam liab ntawm lub multimeter los tso rau ntawm lub cim dub ntawm rooj plaub. Piv nrog rau kev sib cuag ncaj qha rau hauv av, lub zog ntawm cov khoom siv hluav taws xob xau ntawm lub plhaub tuaj yeem ntsuas tau, yog li nws tuaj yeem paub txog qhov ua haujlwm ntawm qhov seem. Nws kuj tseem txuas nrog hauv series rau hauv Circuit Court los ntsuas AC thiab DC tam sim no.
Txhawm rau txheeb xyuas seb cov kab puas los yog tsis, koj yuav tsum siv megohmmeter (shing meter), vim hais tias qhov voltage ntawm multimeter yog tsawg (9v), thiab qhov voltage ntawm megger yog 500v. Vim tias qhov ua haujlwm voltage ntawm txoj kab yog 220v, nws yog ib qho nyuaj rau kev kuaj xyuas kab tsis muaj qhov pom tseeb. Yog tias koj xav siv lub ntsuas hluav taws xob los kuaj cov kab xau, koj yuav tsum tau txiav tawm lub hwj chim ua ntej, thiab tom qab tso tawm cov kab, siv cov iav tiv thaiv, 2M iav los ntsuas, thiab cov zaub ib txwm yog 1 (infinite).
Txhawm rau ntsuas seb lub voj voog txuas nrog, koj tuaj yeem siv multimeter los ntsuas qhov ntau ntawm ohm. Thaum ntsuas, xaiv qhov chaw uas tus pointer ntawm ammeter ze rau deflecting 0 ohms. Yog hais tias cov kab nyob rau hauv Circuit Court, txuas ib kawg (A kawg) ntawm txoj kab mus rau 100 ohm ntau yam ntawm multimeter (liab xeem cwj mem), thiab txuas cov dub xeem coj mus rau lwm qhov kawg (B kawg) ntawm kab rau ntsuas. Yog tias qhov ntsuas tau yog xoom, nws txhais tau hais tias txoj kab txuas txuas no tseem hu ua txoj kev. Tsuas yog los ntawm txoj kev tuaj yeem ntws los ntawm Circuit Court; Yog hais tias tus pointer ntawm lub multimeter ohm range meter tsis nyob ze rau xoom ohms los ntawm A kawg mus rau B kawg ntawm kab, kab twb nyob rau hauv lub xeev qhib, thiab disconnection yog hu ua qhib Circuit Court los yog qhib Circuit Court.
