Luv luv piav qhia txog kev ua haujlwm yooj yim ntawm kev ntsuas qhov tsis kam nrog multimeter.
1. Ua ntej, txuas qhov kev sojntsuam. Kev xaiv ntawm multimeter tuaj yeem yog tus taw tes lossis ob peb lub bai qhia. Ntxig qhov kev sojntsuam liab rau hauv cov ntaub ntawv VΩ thiab cov kev sojntsuam dub rau hauv COM lub davhlau ya nyob twg los xyuas kom meej tias qhov kev ua haujlwm ib txwm muaj ntawm multimeter.
2. Thaum tig lub iav multimeter, koj yuav tsum siv cov iav tiv thaiv los ntsuas qhov tsis kam. Yog tias koj tsis paub meej txog tus nqi tiv thaiv, koj yuav tsum xub teeb tsa qhov hloov pauv mus rau qhov siab tshaj plaws, thiab tom qab ntawd hloov los ntawm ntau qhov loj mus rau qhov ntsuas me me, kom lub ntsuas ntsuas taw qhia ntau tshaj ib nrab ntawm tag nrho cov nplai. Tom qab xaiv cov ntaub ntawv magnification tsim nyog, kov ob qhov kev sojntsuam kom ua tus pointer point ntawm xoom. Yog tias tus pointer deviates ntawm xoom, kho qhov "zero adjustment" knob kom tus pointer zero los xyuas kom meej qhov tseeb ntawm qhov ntsuas.
3. Txuas ob ntu ntawm cov resistor, thiab lub stylus yog casually txuas. Tsis muaj qhov zoo lossis qhov tsis zoo sib txawv. Nco ntsoov ua kev sib cuag zoo.
4. Nyeem cov ntaub ntawv tso tawm los ntawm multimeter. Yog tias tsis muaj cov ntaub ntawv nyob rau hauv lub multimeter, nws yuav yog tias tus resistor puas lawm. Tau kawg, muaj lwm qhov ua tau tias qhov ntau tsis txaus, yog li hloov qhov ntau.
5, nce qhov ntau, yog tias tsis muaj cov ntaub ntawv, nws tsuas tuaj yeem qhia tau tias tus resistor puas lawm. Yog tias muaj cov ntaub ntawv tso tawm cov ntaub ntawv, xyuam xim ntxiv cov iav chav tsev.
Lub hauv paus ntsiab lus ntawm multimeter:
Ib qho rhiab magnetoelectric DC ammeter (micro-ammeter) yog siv los ua lub taub hau ntsuas. Thaum ib tug me me tam sim no hla lub 'meter', yuav muaj ib tug qhia tam sim no. Tab sis lub 'meter' tsis tuaj yeem dhau qhov tam sim no loj, yog li nws yog qhov yuav tsum tau shunt lossis nqis qee cov resistors nyob rau hauv parallel thiab series ntawm lub 'meter' los ntsuas qhov tam sim no, voltage thiab tsis kam nyob rau hauv Circuit Court.
Cov teeb meem xav tau kev saib xyuas hauv kev siv multimeter:
1. Ua ntej siv lub multimeter, nws yuav tsum "mechanically zeroed", uas yog, thaum tsis muaj hluav taws xob ntsuas, ua tus pointer ntawm multimeter taw tes rau txoj hauj lwm ntawm xoom voltage los yog xoom tam sim no.
2. Nyob rau hauv tus txheej txheem ntawm kev siv lub multimeter, koj tsis tuaj yeem kov cov hlau ib feem ntawm lub stylus nrog koj txhais tes, uas tuaj yeem ua kom qhov tseeb ntawm kev ntsuas ntawm ib sab tes thiab kev nyab xeeb ntawm tus kheej ntawm lwm tus.
3, thaum ntsuas qee qhov hluav taws xob, tsis tuaj yeem hloov lub zog tib lub sijhawm, tshwj xeeb tshaj yog thaum ntsuas qhov hluav taws xob siab lossis tam sim no loj, yuav tsum tau them nyiaj ntau dua. Txwv tsis pub, lub multimeter yuav raug puas tsuaj. Yog tias koj xav tau hloov lub zog, koj yuav tsum tau txiav qhov kev sojntsuam ua ntej thiab tom qab ntawd ntsuas tom qab hloov lub zog.
4. Thaum siv lub multimeter, nws yuav tsum tau muab tso rau kab rov tav kom tsis txhob 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. Tom qab siv lub multimeter, muab qhov hloov pauv hloov mus rau qhov siab tshaj plaws ntawm AC voltage. Yog tias nws tsis siv sijhawm ntev, lub roj teeb hauv lub tshuab hluav taws xob yuav tsum tau muab tshem tawm los tiv thaiv lub roj teeb los ntawm lwm yam khoom siv hauv lub ntsuas.
ua tib zoo mloog
1. Yog tias siv 2113 hluav taws xob multimeter, thawj zaug teeb tsa 4102 txoj haujlwm rau ohm rau 5261.
2. Ua ntej siv, xyuas kom meej tias tus pointer ntawm 1653 yog nyob ntawm 0Ω, thiab muab lub hauv ntej kawg ntawm tus cwj mem liab thiab tus cwj mem dub ua ke, uas yuav ua rau luv luv. Yog tias tus pointer tsis tau mus txog 0Ω, koj tuaj yeem tig lub xoom pob Q kom ua tus pointer point ntawm 0 Ω.
3. Ntxig lub stylus liab rau hauv lub qhov "VΩ" thiab lub stylus dub rau hauv "COM" lub qhov, thiab tom qab ntawd xaiv cov iav ntawm cov ntaub ntawv tiv thaiv raws li qhov kev tiv thaiv ntawm Circuit Court yuav tsum tau kuaj.
4. Txhawm rau ntsuas qhov ntsuas tus nqi ntawm lub voj voog, ua ntej teem lub multimeter mus rau qhov siab tshaj plaws tiv thaiv iav. Yog tias cov duab digital me me thiab tsis raug thaum ntsuas, kho lub iav.
5, kev nyeem ntawv zoo tshaj plaws tsuas yog ob tus lej tom qab tus lej lej, thiab cov ntaub ntawv nyeem los ntawm kev hloov kho cov iav no yog qhov tseeb tshaj plaws.
