Siv lub multimeter, ib txoj hauv kev yooj yim los xyuas cov xaim xaim
Ntsuas 220V kab tsis yog qhov xau nrog lub tshuab multimeter, txoj hauv kev yooj yim tshaj plaws yog txiav tawm lub zog hluav taws xob, lub multimeter 抜 mus rau qhov thaiv tiv thaiv (500 ohms) yuav yog xoom kab thiab hluav taws xob xaim. txuas nrog rau hauv av kab nrog ib tug multimeter nrog ob tug cwj mem, xws li cov txiaj ntsig ntawm qhov ntsuas ntawm 0, kom nws tuaj yeem txiav txim siab tias txoj kab yog hauv av, nws yuav yog qhov xau.
Kev ntsuas ntawm 220V kab xau yuav tsum yog 500V lossis 1000V co lub rooj sib tw yog qhov tseeb, yog tias lub multimeter los ntsuas 220V kab tsis yog qhov xau tsis tsim nyog, thiab tom qab ntawd yog tias tsis muaj lub rooj tuav ntawm tes, ces koj tuaj yeem xav tias qhov to ntawm txoj kab thaum pib ntawm lub installation ib ntus ntawm ib txwm siv ob-ncej lub ntiaj teb to Circuit Court breaker los kuaj, txuas nrog lub ntiaj teb to Circuit Court breaker thiab kaw lub ntiaj teb to Circuit Court breaker uas yog lub sij hawm thaum lub sij hawm, thiab nws lub pob pib dua yog protruding ces (Ceeb toom: yog lub ntiaj teb to Circuit Court breaker thiab kaw lub ntiaj teb breaker, lub pob pib dua yog lub sij hawm, lub pob pib dua yog lub sij hawm). Yog yuav protrude ces (Ceeb toom: Yog hais tias lub reset khawm tsis protrude lub rooj vag yog overload tiv thaiv thiab luv luv-circuit tiv thaiv rooj vag) los ua pov thawj tias cov kab muaj ib tug to. Txoj kev no yog qhov yooj yim thiab raug.
Multimeter los ntsuas 220V leakage tsis tsim nyog, vim hais tias koj xav ntsuas qhov to tam sim no, lub multimeter los ntsuas qhov tsis muaj zog AC tam sim no tsis muaj zog, ntsuas tsis pub muaj teeb meem ntau dua, yog tias koj yuav tsum ntsuas qhov xav tau ntawm lub tshuab hloov tam sim no, Koj tuaj yeem siv lub ntsuas ntsuas ntsuas los ntsuas, tab sis xaiv qhov sib txawv ntawm qhov tsim nyog rhiab heev ntawm qee qhov ntsuas clamp zoo.
Xav tias qhov hluav taws xob xaim hluav taws xob, koj tuaj yeem siv qhov qhib cua nrog kev tiv thaiv kev xau los txiav txim, ntu los ntawm ntu los txiav txim siab txog kev xau, kev daws teeb meem.
Raws li kev tiv thaiv los ntsuas cov kab xau, kuv xav tias nws tsis tsim nyog. Vim hais tias txij li thaum nws yog qhov xau, uas yog, qhov kev tiv thaiv ntawm cov hluav taws xob thiab kev tiv thaiv hauv av tsis yog qhov kawg, tab sis lub tshuab hluav taws xob multimeter tsis txaus los piav qhia cov rwb thaiv tsev ntawm lawv, uas yog, 9V thiab 220V rwb thaiv tsev tsis sib txawv heev. Yog li ntawd, cov rwb thaiv tsev tiv thaiv yog ntsuas ntawm qhov hluav taws xob ntau dua li ntawm cov khoom siv hluav taws xob kom tau txais cov ntaub ntawv txhim khu kev qha. Yog vim li cas koj yuav tsum tau siv lub pob zeb ntsuas.
Tau kawg, yog tias koj tsuas yog ntsuas qhov kev tiv thaiv rwb thaiv tsev Tau kawg, yog tias koj tsuas yog ntsuas seb puas muaj qhov luv luv lossis ib txoj hauv kev ntawm hluav taws xob xaim thiab lub ntiaj teb tiv thaiv, siv multimeter tiv thaiv thaiv kuj tseem ua tau. Koj tsuas yog ntsuas tsis tau cov ntaub ntawv rwb thaiv tsev ntawm lawv.
Yog tias cov tawv nqaij rwb thaiv tsev ntawm txoj kab puas lawm, koj tuaj yeem pom nws thiab ua haujlwm nrog nws thaum lub sijhawm los txog. Kuj tseem muaj qhov xwm txheej uas cov yob ntawm daim tawv nqaij tsis raug puas, tsuas yog qee qhov tawg, ua rau qee qhov hauv av ntub dej, lossis qhov kev puas tsuaj yog zais heev, tib neeg tsis tuaj yeem siv qhov muag liab qab ncaj qha pom. Nyob rau lub sijhawm no, koj tuaj yeem blackout txoj kab thiab co nws ncaj qha nrog lub ntsuas ntsuas. Rau cov hluav taws xob qis, koj yuav tsum siv 500-volt co rooj. Kev ntsuas av, yog tias qhov rwb thaiv tsev tsawg dua 0.5 megohm. Nws tuaj yeem xav tias qhov rwb thaiv tsev tsis zoo heev thiab yuav tsum tau kuaj xyuas ib ntus. Ib qho tseem ceeb uas yuav tsum nco ntsoov yog tias, thaum ntsuas nrog lub rooj sib txuas, lub voj voog tsis tuaj yeem txuas nrog txhua yam khoom siv hluav taws xob. Txwv tsis pub, qhov ntsuas tus nqi yuav tsis raug.
Yog tias koj siv lub multimeter los kuaj xyuas cov dej xau. Tej zaum nws yuav tsis raug. Vim hais tias qhov voltage ntawm ib tug multimeter yog tsawg heev. Tshwj tsis yog tias qhov xau yog qhov hnyav dua, nws tuaj yeem kuaj pom.
Lwm lo lus sab nraud ntawm qhov kev kawm, nws yog qhov zoo tshaj plaws los siv lub qhov hluav taws xob tiv thaiv hluav taws xob rau lub qhov (socket) hauv tsev. Yog li ntawd ib zaug qhov tshwm sim to, tuaj yeem txiav tawm lub hwj chim sai sai kom ntseeg tau tias tus kheej muaj kev nyab xeeb.
1, kev ntsuas hluav taws xob hluav taws xob: kaw thiab tshem tawm tag nrho cov khoom siv hluav taws xob, nrog rau cov ntaub ntawv multimeter RX10K, tus cwj mem txais kev ntsuas hluav taws xob, lwm yam cwj mem hauv av (los yog kais), yuav tsum qhia qhov tsis kam ntawm infinity, txwv tsis pub xau.
2, them nqi ntsuas: nrog ib tug multimeter 250 volts AC voltage cov ntaub ntawv, ntsuas qhov xav tias leakage ntawm lub plhaub hlau ntawm cov khoom, ib tug cwj mem txuas nrog lub plhaub, lwm yam cwj mem av (los yog kais), tus pointer qhia ib tug voltage siab tshaj {{2 } } volts nruab nrab, hloov AC 50-volt iav, yog tias lub zog hluav taws xob kom paub meej tias siab dua 30 volts yog qhov xau, qis dua 30 volts yog qhov qub, thiab tom qab ntawd xoom, hluav taws xob hluav taws xob ntsaws kab rau hauv kev ntsuas rov qab tuaj yeem txiav txim siab ib zaug ntxiv. Yog tias cov khoom siv hluav taws xob tau lees paub tias siab dua 30 volts, nws yog to, thiab qis dua 30 volts, nws yog qhov qub.
3, hluav taws kub thiab xoom kab (los yog hluav taws kub thiab hluav taws) nruab nrab ntawm kev ntsuas qhov to: kaw thiab txiav tag nrho cov khoom siv hluav taws xob, ntsuas qhov kev tiv thaiv ntawm qhov hluav taws kub thiab xoom kab yuav tsum yog infinite, txwv tsis pub nws yog qhov to.
