Yuav ua li cas ntsuas voltage thiab theem tam sim no nrog lub digital multimeter
Yuav ua li cas ntsuas voltage ntau nrog digital multimeter
1. Kev ntsuas ntawm DC voltage, xws li cov roj teeb, cov khoom siv hluav taws xob walkman, thiab lwm yam. Ua ntej, ntxig cov hlau lead dub rau hauv lub qhov "com" thiab cov hlau kuaj liab rau hauv "V Ω" qhov. Xaiv lub pob qhov rooj rau ntau qhov loj dua li qhov kwv yees (ceeb toom: qhov tseem ceeb ntawm lub xov tooj yog qhov siab tshaj plaws, "V-" sawv cev rau DC voltage ntau, "V ~" sawv cev rau AC voltage ntau, thiab "A" sawv cev rau tam sim no ntau), thiab tom qab ntawd Txuas qhov kev sim ua rau ob qho kawg ntawm cov khoom siv hluav taws xob lossis roj teeb; khaws kev sib cuag ruaj khov. Tus nqi tuaj yeem nyeem ncaj qha los ntawm cov zaub. Yog tias nws tshwm sim raws li "1.", nws txhais tau hais tias qhov ntsuas qhov ntsuas me me dhau, yog li nws yuav tsum tau ua kom ntsuas qhov ntsuas ntau 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 qhov kev xeem cov hlau lead yog qhov sib txawv rau qhov tseeb lub zog polarity. Lub sijhawm no, cov hlau kuaj liab txuas nrog rau tus ncej tsis zoo.
2. Kev ntsuas ntawm AC voltage. Kev ntsuas cov hlau lead 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 ntawm qhov sib txawv ntawm AC voltage, thiab txoj kev ntsuas yog tib yam li ua ntej. Txawm hais tias koj tab tom ntsuas AC lossis DC voltage, koj yuav tsum ua tib zoo saib xyuas kev nyab xeeb ntawm tus kheej thiab tsis txhob kov cov hlau ntawm qhov kev xeem coj nrog koj txhais tes.
Yuav ua li cas ntsuas theem tam sim no nrog digital multimeter
1. Kev ntsuas ntawm DC tam sim no. Ua ntej ntxig cov hmoov txhuas dub rau hauv "COM" qhov. Yog tias koj 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" txoj haujlwm; Yog tias koj ntsuas qhov tam sim no tsawg dua 200mA, ntxig cov hlau kuaj liab rau hauv "200mA" jack thiab tig lub pob qhov rooj mus rau qhov tsim nyog nyob rau hauv DC 200mA. Tom qab hloov kho, koj tuaj yeem pib ntsuas. Ntxig lub multimeter rau hauv Circuit Court thiab ua kom ruaj khov kom tau txais kev nyeem ntawv. Yog tias nws qhia "1.", ces qhov ntau yuav tsum tau nce; yog tias "-" tshwm nyob rau sab laug ntawm tus nqi, nws txhais tau hais tias tam sim no ntws los ntawm cov xim dub coj mus rau hauv multimeter.
