Cov lus qhia rau kev siv cov digital pallatimeter los ntsuas seb cov hlau yog xaim hluav taws xob
Muaj ob txoj hauv kev los ntsuas seb cov xaim xaim rau hauv av nrog multimeter nrog multimeter: ib qho yog kev ntsuas nyob. Teeb lub multimeter rau AC hom thiab ntsuas tus voltage ntawm cov khoom casing thiab hauv av thaum cov khoom siv tau siv rau. Ib qho hluav taws xob ntawm ntau kaum tawm feem ntau yog cov hluav taws xob, thiab lub voltage tshaj ib puas volts tuaj yeem txiav txim siab tias cov khoom siv xau. Txoj kev kuaj pom no yog feem ntau tsis pom zoo. Qhov thib ob txoj kev yog kom disconnect lub hwj chim muab thiab ntsuas cov rwb thaiv tsev tsis kam ntawm cov hlau nyob hauv, nruab nrab ntawm cov hlau, nyob hlau, thiab hauv av hlau. Yog ntsuas nrog multimeter, nws yuav tsis muaj tseeb heev. Kom raug, lwm lub twj paj nruag, ib lub rooj sib tuav, yuav tsum tau siv. Yog tias ntsuas nrog multimeter ntau, nrog kev tawm tsam loj heev los ntawm ob peb puas Ohms rau ob peb kaum ntawm Ohms.
Kev ntsuas kev ntsuas ntawm cov digital multimeter:
1. Teeb puv rau AC hom thiab ntsuas qhov hluav taws xob nruab nrab ntawm cov cuab yeej casing thiab cov hlau hauv av (paub meej tias nws yog cov khoom siv av) thaum lub cuab yeej siv rau. Yog tias lub voltage ntau yog ob peb kaum ntawm volts lossis ib puas thiab kaum volts, nws qhia tias muaj hluav taws xob induction. Yog tias nws yog 220V lossis 380v, nws qhia tau xau.
2. Teeb puv rau AC hom thiab ntsuas qhov hluav taws xob nruab nrab ntawm cov cuab yeej casing thiab lub nruab nrab hlau thaum lub cuab yeej siv rau. Yog tias lub voltage ntau yog ob peb kaum ntawm volts lossis ib puas thiab kaum volts, nws qhia induction. Yog tias nws yog 220V lossis 380v, nws qhia tau xau.
Tab sis nruj me ntsis kev hais lus, thaum ntsuas cov rwb thaiv tsev tsis kam ntawm Circuit Court kom txiav txim siab yog tias muaj xau, ib moeghmermeter yuav tsum tau siv. Ib melohmermeter yog sib npaug rau ib tug 1 {0 00} 00} 00} 00v tam sim no hla dhau ntawm cov qauv resistor, thiab tsim cov qauv hluav taws xob nyeem ntawm cov resistor. Feem ntau, ib lub ruaj khov tsis kam ntau dua 0.5 megaohms yog suav tias yog tsim nyog.
Cov qauv yog raws li hauv qab no:
1. Lub zog tawm cov khoom siv, tso tawm tag nrho, ntsuas kev nyab xeeb thiab dai cov cim ceeb toom, tom qab ntawd kaw ob sab terminals ntawm cable rau kev sim. Tsis txhob cia cov kev ntsuas nyob hauv kev ntsuas ntawm cov cuab yeej los ua kom muaj kev nyab xeeb ntawm tus kheej thiab khoom siv.
2. Ua ntej ntsuas, tshuaj xyuas seb MEGOHMAMETER yog nyob rau hauv ib txwm ua hauj lwm mob, tsuas yog kuaj nws "0" ntsiab lus. Co tus kov kom ncav cuag lub rated ceev ntawm lub cev muaj zog. Lub MoGohmeter yuav tsum qhia qhov "{{{{0" txoj hauj lwm thaum luv luv ci thiab "∞" txoj hauj lwm thaum qhib kev ncig.
3. Qhov "L" Hlau Terminal tau txuas nrog tus neeg xyuas pib ntawm cov cuab yeej sim, "g" shielding davhlau ya nyob twg yog txuas nrog lub rwb thaiv tsev ib feem ntawm cov khoom siv sim. Tig lub ntsuas meter me me ntawm qhov nruab nrab ceev ntawm 12 0} Revolutionals ib feeb. Yog tias kev nyeem ntawv tau ruaj khov thiab siab tshaj 0.5 Moohms, nws yog suav tias yog tsim nyog. Txwv tsis pub, lub rwb thaiv tsev degree tsis muaj txaus thiab yuav muaj xau.
