Cov kauj ruam tshwj xeeb rau ntsuas qhov hluav taws xob nrog Multimeter
1. Hloov lub multimeter hloov mus rau txoj haujlwm tsim nyog los txiav txim siab seb qhov ntsuas hluav taws xob puas yog DC lossis AC, thiab tom qab ntawd tig mus rau qhov sib txuas ntawm qhov hluav taws xob (DC voltage ntau lossis AC voltage ntau). Yog tias qhov polarity ntawm qhov voltage yuav tsum tau kuaj tsis meej, nws tuaj yeem sim siv lub siab DC voltage hom ua ntej. Yog tias tus taw tes txav mus, nws qhia tias nws yog DC tam sim no; Yog tias tus taw tes tsis txav (qhia tias qhov ntsuas qhov ntsuas tsis tuaj yeem txav mus los vim muaj ntau yam lossis AC lub zog), hloov mus rau qhov siab AC voltage ntau thiab sim dua. Yog tias tus taw tes txav mus, nws txhais tau tias nws yog AC zog. Yog tias tus pointer tseem tsis txav mus, hloov mus rau qhov qis DC voltage ntau rau kev kuaj. Yog tias nws txav mus, nws txhais tau tias nws yog DC lub zog. Yog tias nws tsis txav mus, hloov mus rau AC voltage ntau ntxiv.
2. Xaiv qhov tsim nyog: kwv yees qhov loj ntawm qhov ntsuas DC voltage raws li qhov voltage ntawm lub hwj huam mov hauv Circuit Court nyob rau hauv kev sim thiab xaiv qhov ntau. Yog tias koj tsis paub meej txog qib voltage, koj yuav tsum xub siv qhov high voltage ntau los kuaj thiab ntsuas, thiab mam li maj mam hloov mus rau qhov tsawg voltage ntau kom txog thaum koj pom qhov tsim nyog.
Tus qauv rau qhov tsim nyog ntawm qhov voltage ntau yog tias tus pointer yuav tsum tau muab tso rau ntawm 2/3 lossis ntau dua ntawm tag nrho cov offset nplai ntawm lub dial kom ntau li ntau tau (uas txawv ntawm tus qauv rau qhov tsim nyog magnification ntawm qhov kev tawm tsam thiab yuav tsum tau sau tseg).
3. Kev ntsuas kev ntsuas: Thaum ntsuas qhov ntsuas hluav taws xob nrog lub ntsuas hluav taws xob, lub multimeter yuav tsum tau txuas nrog rau qhov sib npaug ntawm qhov ntsuas hluav taws xob. Txuas lub xov tooj liab ntawm lub multimeter mus rau qhov muaj peev xwm dav dav ntawm lub voj voog nyob rau hauv kev sim, qhov twg DC tam sim no ntws mus rau hauv lub davhlau ya nyob twg Circuit Court, thiab txuas cov dub sojntsuam mus rau qhov tsis tshua muaj peev xwm davhlau ya nyob twg ntawm Circuit Court nyob rau hauv kev sim, qhov twg DC tam sim no ntws tawm ntawm Circuit Court terminal. Piv txwv li, thaum ntsuas qhov hluav taws xob ntawm lub roj teeb qhuav, peb txuas lub ntsuas hluav taws xob liab mus rau qhov zoo ntawm lub roj teeb qhuav thiab lub ntsuas hluav taws xob dub rau qhov tsis zoo ntawm lub roj teeb qhuav.
4. Kev nyeem ntawv kom raug:
(1) Nrhiav qhov ntsuas qhov ntsuas hluav taws xob: Ua tib zoo saib lub xov tooj, DC voltage theem ntsuas kab yuav tsum yog kab kab hauv lub dial. Muaj ib lub cim V hauv qab kab kab ntawm lub dial, qhia tias kab kab tuaj yeem siv los nyeem AC / DC voltage thiab tam sim no.
(2) Xaiv qhov ntsuas qhov tsim nyog: Muaj peb qhov sib txawv hauv qab kab kab, 0-50-100-150-200-250, 0-10-20-30-40-50, thiab 0-2-4-6-8-10. Xaiv qhov ntsuas qhov tsim nyog raws li qhov kev xaiv, piv txwv li, rau thaj tsam ntawm 0.25V, 2.5V, thiab 250V, qhov ntsuas ntawm 0-50-100-150-200-250 tuaj yeem siv rau kev nyeem ntawv; Qhov ntau ntawm 1V, 10V, thiab 1000V tuaj yeem xaiv nrog 0-2-4-6-8-10 nplai; Qhov ntau ntawm 50V thiab 500V tuaj yeem xaiv nrog qhov ntsuas ntawm 0-10-20-30-40-50. Vim nws ua rau kev nyeem ntawv yooj yim dua thiab yooj yim dua.
