Qhov kev hloov luv luv tsuas yog cov zaub xwb; multimeter tsis yog.
Lub multimeter stick yog luv, lub multimeter tsis rov qab mus rau xoom
Muaj ntau qhov laj thawj, los ntawm sab nraud mus rau sab hauv, los ntawm qhov yooj yim mus rau qhov nyuaj.
1. Tso cov ntawv xeem, thiab saib seb tus pointer puas tuaj yeem rov qab mus rau xoom ntawm qhov chaw pib ntawm sab laug. Yog tias nws tsis tuaj yeem rov pib dua rau xoom, siv tus ntiv tes ntxig rau Bakelite hloov eccentric pas nrig ntawm lub hauv paus ntawm tus taw tes hloov kho kom rov pib dua rau xoom. Yog tias tsis muaj lus teb rau kev hloov kho, tus pas nrig sab hauv yog tawg. Txhawm rau rov qab mus rau xoom, muab lub 'meter' rau ntawm lub rooj thiab tuav nws ntawm ob sab ntawm lub rooj thiab co sab laug thiab sab xis saib seb lub koob puas cuam tshuam los ntawm sab laug mus rau sab xis. Cov kev cuam tshuam qhia tias txhais tes yog khawb lub dial lossis iav. Sib nrug los kho. Tsis muaj teeb meem, mus rau kauj ruam tom ntej.
2. Kho lub pob qhov rooj zeroing mus rau sab xis mus rau qhov kawg, uas yog qhov siab tshaj plaws zeroing kho. Cov hlau kuaj liab kov lub rooj zaum hlau ntawm lub qhov (socket) kuaj dub, thiab cov hlau kuaj dub kov lub rooj zaum hlau ntawm cov hlau kuaj liab, uas yog sib npaug rau qhov sib npaug ntawm ob qhov kev xeem coj, thiab tuaj yeem rov qab mus rau xoom, qhia tau hais tias cov thawj coj xeem muaj kev sib cuag tsis zoo thiab yuav tsum tau kuaj xyuas thiab txiav tawm. Tsis tuaj yeem rov qab mus rau xoom, mus rau kauj ruam tom ntej
3. Tshem lub hau npog ntawm lub thawv roj teeb hauv qab, tshem tawm lub roj teeb 1.5 volt, thiab muab lub multimeter nyob rau hauv DC voltage 2.5 volt ntau yam. Xyuas seb lub roj teeb puas muaj 1.5 volts, yog tias nws tsis txaus, hloov nws. Yog tias qhov hluav taws xob txaus, saib seb puas muaj oxidation thiab xeb ntawm qhov zoo thiab qhov tsis zoo ntawm lub thawv roj teeb, thiab yog tias muaj, tshem nws. Tsis muaj xeb, kho cov shrapnel los txhim kho kev sib cuag nrog lub roj teeb, thiab nruab lub roj teeb. Saib seb nws puas tuaj yeem rov pib dua xoom. Tsis tuaj yeem raug xoom, cov kauj ruam tom ntej.
4. Disassemble lub 'meter' lub thawv thiab saib xyuas qhov chaw tiv tauj daim ntawm xoom-rov qab hlau qhov txhab potentiometer, seb puas muaj kev sib cuag tsis zoo lossis cov xaim tsis kam ntawm potentiometer tawg. tsis muaj teeb meem, kauj ruam tom ntej
5. Tshawb xyuas qhov kev sib cuag ntawm ohmic txoj hauj lwm ntawm qhov hloov pauv, thiab saib seb qhov hloov pauv puas muaj kev sib cuag tsis zoo. Tsis muaj teeb meem, mus rau kauj ruam tom ntej.
6. Saib seb puas yog qhov me me wirewound resistor nyob rau hauv ohm x1 ntau yog hlawv.
Yog tias thawj tsib kauj ruam yog txhua yam, qhov teeb meem yog theem thib rau. Feem ntau ib tug neeg yuam kev teeb tsa lub ohm nplai los ntsuas qhov hluav taws xob thiab kub hnyiab tawm hauv qhov hluav taws xob me me hauv qhov hluav taws xob, ua rau tsis ua haujlwm rov qab mus rau xoom. Qhov tseeb phim tus resistor nrog tib tus nqi tiv thaiv, thiab qhov txhaum raug tshem tawm.
Lub buzzer ntawm cov multimeter yog luv luv, vim li cas nws thiaj li tso saib 2 es tsis txhob ntawm 0?
Qhov kev sib cuag ntawm lub qhov (socket) cov hlau lead yog qhov tsis zoo, los yog qhov zoo ntawm cov hlau lead hlau tsis zoo. Ncaj qha luv luv cov liab thiab dub xeem lead qhov nrog ib tug tooj liab hlau saib seb nws yuav ncav cuag {{0}}, thiab tej zaum nws yuav tsis yog hais tias qhov kev sib cuag ntawm lub vaj huam sib luag yog qias neeg. Ntxuav nws, kev sib cuag ntawm lub turntable, tu tsis txaus, nws yog qhov teeb meem ntawm lub voj voog ntawm lub moos, muaj qhov hloov kho potentiometer, koj tuaj yeem rov pib dua 0 txoj haujlwm
Qhov hloov ntawm digital multimeter tau tawg, thiab tsis muaj qhov hloov pauv los hloov nws. Yuav ua li cas rau luv luv-circuit, lub multimeter tsis tso saib, thiab lub hloov yog luv luv-circuited tso saib, yog li kuv yuav qhia nws ntawm no! Ua tsaug rau nyeem sawv daws! Cia siab tias yuav pab tau sawv daws!
