Dab tsi yog cov qib tsis kam nyob hauv multimeter
1. Qhov ntau yam ntawm kev ntsuas kev tiv thaiv yog xaiv qhov tsim nyog rau kev ntsuas kev tiv thaiv, ua rau kev ntsuas me me thiab qhov tseeb dua.
Yog tias koj yog 1000 ohm resistor, tus nqi ntsuas siv 2000 iav yog qhov tseeb dua li siv 20K iav. Qhov no txhais tau hais tias qhov ze dua qhov kev tiv thaiv tus nqi koj ntsuas yog rau cov iav ntawd, qhov tseeb ntawm qhov ntsuas tus nqi siab dua.
2. Siv 200 lub zog rau 0-200 Ω; Siv 2000 iav rau 200-2000 Ω; Siv 20K iav rau 2000-20k; Siv 200K iav rau 20K-200K;
Cov qauv kev ua haujlwm
1. Ua ntej siv, ua kom paub koj tus kheej nrog ntau yam haujlwm ntawm multimeter, thiab xaiv cov iav, qhov ntau, thiab lub qhov (socket) raws li cov khoom ntsuas.
2. Thaum qhov loj ntawm cov ntaub ntawv ntsuas tsis paub, qhov hloov pauv yuav tsum tau teem rau qhov siab tshaj plaws ua ntej, thiab tom qab ntawd hloov ntawm qhov loj mus rau qhov me me, kom lub ntsuas ntsuas taw qhia ntau tshaj 1/2 ntawm cov puv nplai.
3. Thaum ntsuas kev tiv thaiv, tom qab xaiv qhov tsim nyog magnification ntau yam, kov ob lub probes kom tus pointer taw tes rau xoom. Yog tias tus pointer deviates ntawm xoom, kho qhov "zero adjustment" knob kom tus pointer rov qab mus rau xoom kom paub meej qhov ntsuas tau. Yog tias qhov xoom tsis tuaj yeem hloov kho lossis lub ntsuas ntsuas digital tso tawm lub tswb ntsuas hluav taws xob tsawg, nws yuav tsum tau kuaj xyuas raws sijhawm.
4. Thaum ntsuas qhov kev tiv thaiv ntawm ib qho hluav taws xob, lub zog hluav taws xob ntawm qhov ntsuas hluav taws xob yuav tsum raug txiav tawm thiab kev ntsuas nyob tsis raug tso cai.
5. Thaum siv multimeter rau kev ntsuas, yuav tsum tau them nyiaj rau tus kheej thiab ntsuas kev nyab xeeb. Thaum lub sij hawm sim, nws tsis raug tso cai kov cov hlau ntawm qhov kev sojntsuam nrog ob txhais tes, thiab nws tsis raug tso cai hloov lub iav hloov nrog hluav taws xob los xyuas kom meej qhov ntsuas thiab tsis txhob muaj xwm txheej xws li hluav taws xob poob siab thiab ntsuas hluav taws xob.
