Yuav ua li cas ntsuas qhov to nrog multimeter?
Ua ntej siv lub tshuab hluav taws xob los txheeb xyuas qhov xau ntawm lub hwj chim faib txee lossis lub thawv xa khoom, peb yuav tsum xub saib qhov tshwm sim txhaum cai thiab pom tseeb cov yam ntxwv hauv lub thawv xa khoom; Thib ob, saib seb puas muaj qhov tsis txaus ntseeg ntawm qhov chaw, thiab tom qab ntawd mus rau kauj ruam tom ntej tshuaj xyuas.
1. Ua ntej disconnect lub ntsiab cais hloov ntawm peb lub hwj chim nkag, thiab tua tag nrho cov loads, xws li unplugging lub tub yees, disconnecting dej twj tso kua mis hloov, thiab lwm yam.
2. Muab cov iav ntawm lub tshuab digital multimeter rau ntawm 200M iav ntawm ohm ntau yam, muab ib qho kev xeem coj mus kuaj ntawm ib qho ntawm ob qhov hluav taws xob ntawm qhov chaw thauj khoom, thiab lwm qhov kev sim cov hlau lead kov phab ntsa, nyiam dua hauv av xaim lossis ib ntus av xaim. Tom qab tus lej tso tawm ntawm lub multimeter yog qhov ruaj khov, qhov ntsuas hluav taws xob tiv thaiv tus nqi ntawm cov kab tseem ceeb tau nyeem. Yog tias tus nqi hluav taws xob tiv thaiv tsawg dua 0.5 megohm, ces muaj teeb meem nrog cov kab tseem ceeb. Yog hais tias lub rwb thaiv tsev tsis kam siab tshaj 0.5 megohm, ces nws yuav raug txiav tawm. Nws yog ib qho teeb meem nrog cov kab tseem ceeb. Siv tib txoj kev los ntsuas lwm cov hlau, thiab xyuas cov nqi kom pom tias muaj teeb meem nrog cov kab loj.
3. Tshawb xyuas cov nqi hluav taws xob tiv thaiv ntawm shunt thiab txhua yam khoom siv hluav taws xob, thiab xyuas ib qho los ntawm ib qho tib yam kom txog thaum pom qhov txhaum.
Kev ceev faj ua haujlwm
1. Thaum siv 200M block ntawm ohm block ntawm multimeter, yuav tsum ceev faj tsis txhob kov cov hlau ntawm cov hlau lead nrog koj txhais tes thaum ntsuas, txwv tsis pub kev nyeem ntawv yuav tsis raug.
2. Thaum ntsuas txhua yam khoom siv hluav taws xob, ua tib zoo tso tawm ua ntej kom tsis txhob muaj qhov hluav taws xob tam sim no hauv cov khoom siv hluav taws xob los ntawm kev ua phem rau tib neeg.
Txoj kev no yog ib txoj hauv kev zoo los nrhiav qhov txhaum hauv lub xeev tsis muaj hluav taws xob. Txoj kev no kuj tseem siv tau rau cov neeg siv hluav taws xob thiab lub tsev tsim hluav taws xob tshawb nrhiav, tab sis thaum tshawb nrhiav, tsis yog tsuas yog cov khoom siv hluav taws xob yuav tsum raug txiav, tab sis kuj tseem yuav tsum tau txiav cov kab nruab nrab kom tsis txhob muaj hluav taws xob poob.
