Luv luv piav qhia txog kev ua haujlwm yooj yim ntawm kev ntsuas kev tiv thaiv nrog multimeter
1, ua ntej txuas nrog tus cwj mem, kev xaiv ntawm multimeter tuaj yeem ua tus pointer tuaj yeem yog cov duab digital, tus cwj mem liab tso rau hauv cov ntaub ntawv VΩ, tus cwj mem dub tso rau hauv COM davhlau ya nyob twg, kom ntseeg tau tias lub multimeter zoo li qub.
2, tig lub multimeter iav, ntsuas kev tiv thaiv yuav tsum tau siv cov iav tiv thaiv, yog tias koj tsis paub meej npaum li cas tus nqi tiv thaiv, koj yuav tsum xub hloov pauv, muab tso rau hauv tus nqi siab tshaj plaws, thiab tom qab ntawd los ntawm ntau qhov ntau mus rau qhov me me iav. hloov, kom lub ntsuas ntsuas taw qhia hauv qhov ntsuas tag nrho ntawm 1/2 lossis ntau dua tuaj yeem ua tau. Tom qab xaiv cov ntaub ntawv magnification tsim nyog, ob tus cwj mem kov kom lub pointer nyob rau hauv xoom txoj hauj lwm, xws li tus pointer deviates los ntawm xoom txoj hauj lwm, koj yuav tsum tau kho qhov "Zero" pob qhov rooj, kom tus pointer rau xoom kom paub meej tias qhov ntsuas. cov txiaj ntsig yog qhov tseeb.
3, Txuas ob ntu ntawm cov resistor, tus cwj mem txuas nrog casually, tsis muaj cov ntsiab lus zoo thiab tsis zoo, nco ntsoov xyuas kom meej tias kev sib cuag zoo.
4, nyeem tawm cov ntaub ntawv multimeter zaub, yog tias lub multimeter tsis tshwm sim, tej zaum yuav muaj cov resistors phem, tau kawg, muaj qhov ua tau tias qhov ntau tsis txaus, hloov qhov ntau.
5, nce qhov ntau, yog tias tsis muaj cov ntaub ntawv, nws tsuas yog txhais tau tias cov resistor tsis zoo. Yog tias muaj cov ntaub ntawv tso tawm cov ntaub ntawv, xyuam xim ntxiv rau chav tsev ntawm lub iav.
Lub hauv paus ntsiab lus ntawm multimeter:
Nws yog siv lub magneto-electric DC ammeter (microammeter) ua lub taub hau meter. Thaum ib tug me me tam sim no hla lub taub hau, ib tug tam sim no qhia. Tab sis lub taub hau tsis tuaj yeem hla cov tam sim no loj, yog li lub taub hau yuav tsum tau txuas mus rau qhov sib npaug thiab cov koob nrog qee cov resistors rau shunt los yog voltage txo, thiaj li ntsuas qhov tam sim no, voltage thiab kuj nyob rau hauv Circuit Court.
Cov lus qhia rau kev siv multimeter:
1, nyob rau hauv kev siv ntawm multimeter ua ntej, yuav tsum yog "neeg tshuab xoom", uas yog, nyob rau hauv tsis muaj kev ntsuas lub hwj chim, kom lub multimeter pointer nyob rau hauv lub xoom voltage los yog xoom tam sim no txoj hauj lwm.
2, Thaum lub sij hawm tus txheej txheem ntawm kev siv lub multimeter, koj yuav tsum tsis txhob kov cov hlau ib feem ntawm tus cwj mem nrog koj txhais tes, thiaj li yuav xyuas kom meej qhov tseeb ntawm qhov ntsuas ntawm ib sab tes, thiab xyuas kom meej tus kheej kev nyab xeeb ntawm qhov tod tes.
3, Thaum ntsuas qee qhov hluav taws xob, koj tsis tuaj yeem hloov lub iav tib lub sijhawm ntsuas, tshwj xeeb tshaj yog thaum ntsuas qhov hluav taws xob siab lossis siab tam sim no, koj yuav tsum tau them sai sai rau nws. Txwv tsis pub, lub multimeter yuav raug puas tsuaj. Yog tias koj xav tau hloov lub zog, koj yuav tsum xub txiav lub cwj mem, hloov lub zog thiab rov qab mus rau qhov ntsuas.
4, lub multimeter nyob rau hauv kev siv, yuav tsum tau muab tso rau kab rov tav, thiaj li tsis mus ua yuam kev. Nyob rau tib lub sijhawm, peb yuav tsum tau ua tib zoo saib xyuas kom tsis txhob muaj kev cuam tshuam ntawm sab nraud magnetic teb ntawm multimeter.
5, lub multimeter tau siv, yuav tsum tau muab tso rau hauv lub siab tshaj plaws hloov AC voltage iav. Yog tias nws tsis siv sijhawm ntev, lub roj teeb hauv lub ntsuas hluav taws xob yuav tsum tau muab tshem tawm kom tsis txhob muaj roj teeb corrosion ntawm lwm yam khoom siv hauv lub ntsuas.
