Yuav ua li cas ib tug multimeter ntsuas tam sim no, voltage thiab kuj
Lub multimeter yog ib qho kev ntsuas ntau yam, uas tuaj yeem ntsuas qhov tam sim no thiab qhov hluav taws xob, nrog rau lwm yam txiaj ntsig xws li kev tiv thaiv, tab sis txoj kev siv yog qhov nyuaj dua. Yog li, yuav ua li cas siv lub multimeter, cov hauv qab no yuav qhia rau koj.
Yuav ua li cas siv lub multimeter:
1. Kev ntsuas hluav taws xob:
1. Kev ntsuas qhov hluav taws xob DC: Ua ntej, ntxig cov xim dub rau hauv lub qhov [com], thiab cov hlau kuaj liab rau hauv [VΩ];
2. Xaiv lub pob qhov rooj ntawm lub multimeter mus rau ntau qhov loj dua li qhov kwv yees (ceeb toom: qhov tseem ceeb ntawm lub dial yog qhov siab tshaj plaws, [V-] txhais tau tias DC voltage ntau, [V-] txhais tau tias AC voltage range, [A] yog cov iav tam sim no), tom qab ntawd txuas qhov kev sim ua rau lub zog hluav taws xob lossis ob qho kawg ntawm lub roj teeb;
3. Khaws kev sib cuag ruaj khov. Tus nqi tuaj yeem nyeem ncaj qha los ntawm lub vijtsam zaub. Yog tias nws tshwm sim raws li [1], nws txhais tau hais tias qhov ntau me me dhau lawm, ces qhov ntau yuav tsum tau nce ntxiv ua ntej ntsuas cov khoom siv hluav taws xob. Yog tias [-] tshwm nyob rau sab laug ntawm tus nqi, nws txhais tau hais tias qhov polarity ntawm cov khoom siv lead ua yog qhov sib txawv ntawm cov khoom siv hluav taws xob tiag tiag, thiab cov hlau kuaj liab txuas nrog cov ncej tsis zoo;
4. Kev ntsuas hluav taws xob AC: Kev ntsuas tus cwj mem yog tib yam li qhov ntsuas hluav taws xob DC, tab sis lub pob qhov rooj yuav tsum tig mus rau qhov xav tau ntawm AC iav [V ~]. Tsis muaj qhov zoo lossis qhov tsis zoo AC voltage, thiab txoj kev ntsuas yog tib yam li yav dhau los. Txawm hais tias ntsuas AC lossis DC voltage, xyuam xim rau kev nyab xeeb ntawm tus kheej thiab tsis txhob kov cov hlau ntawm tus cwj mem nrog koj txhais tes;
Qhov thib ob, qhov ntsuas tam sim no:
1. Kev ntsuas ntawm DC tam sim no. Ntxig qhov kev xeem dub rau hauv [com] qhov ua ntej. Yog tias ntsuas qhov tam sim no ntau dua 200mA, ntxig cov hlau kuaj liab rau hauv [10A] jack thiab tig lub pob qhov rooj mus rau DC [10A] qib; Yog tias ntsuas qhov tam sim no tsawg dua 200mA, ntxig cov hlau kuaj liab rau hauv [200mA] jack, tig lub pob qhov rooj mus rau qhov tsim nyog nyob rau hauv 200mA ntawm DC. Thaum kho, koj tuaj yeem ntsuas. Faib lub multimeter rau hauv Circuit Court, ua kom ruaj khov, thiab koj tuaj yeem nyeem tau. Yog tias nws tshwm sim li [1], ces qhov ntau yuav tsum tau nce; yog - tshwm nyob rau sab laug ntawm tus nqi, nws txhais tau hais tias tam sim no ntws mus rau hauv lub multimeter los ntawm cov hlau lead dub;
2. AC tam sim no ntsuas: txoj kev ntsuas yog tib yam li 1, tab sis cov iav yuav tsum tau teem rau AC iav, thiab tus cwj mem liab yuav tsum tau muab tso rau hauv lub qhov [VΩ] tom qab qhov ntsuas tam sim no tiav;
Thib peb, kev ntsuas kev tiv thaiv:
Ntxig qhov kev xeem coj mus rau hauv [com] thiab [VΩ] qhov, tig lub pob qhov rooj mus rau qhov xav tau ntau yam hauv [Ω], thiab txuas qhov kev xeem coj mus rau ob qho kawg ntawm cov resistor. Koj tuaj yeem kov qhov kev tawm tsam nrog ib txhais tes thaum ntsuas, tab sis tsis txhob muab ob lub Kov ob qhov kawg ntawm tus resistor nrog ib txhais tes tib lub sijhawm, uas yuav cuam tshuam rau qhov ntsuas qhov tseeb. Thaum nyeem ntawv, khaws cov kev xeem coj thiab kev tiv thaiv hauv kev sib cuag zoo; Nco tseg: chav tsev yog [Ω] nyob rau hauv [200] ntau, chav tsev yog [KΩ] nyob rau hauv lub [2K] mus [200K] ntau, thiab chav tsev saum toj [2M] yog 【MΩ】;
Cov saum toj no yog cov lus teb rau kev siv lub multimeter, kuv vam tias nws yuav pab tau koj
