Yuav siv lub multimeter li cas thiaj nrhiav tau cov teeb meem
Yog tias lub cuab yeej tsis ua haujlwm, thawj qhov koj xav txog yog seb lub cuab yeej hluav taws xob puas zoo li qub. Koj yuav tsum siv qhov voltage ntau ntawm lub multimeter (xaiv AC voltage ntau lossis DC voltage ntau, nws nyob ntawm seb koj lub cuab yeej yog AC ntaus ntawv lossis DC ntaus ntawv) los ntsuas. Yog hais tias lub Circuit Court tswj los yog theem nrab Circuit Court yog disconnected, txawm yog hais tias koj paub cov schematic, koj yuav tsum tau siv lub voltage ntau yam los ntsuas seb qhov voltage ntawm ib tug tej yam taw tes yog ib txwm. Yog tias nws tau txiav txim siab tias qhov hluav taws xob ntawm qhov taw tes yuav tsum tsis nyob ntawd tab sis tam sim no, thiab qhov twg yuav tsum tsis muaj, nws qhia tau hais tias muaj kev cuam tshuam lossis kev sib cuag tsis zoo ntawm lub sijhawm ntawd. Txhawm rau txiav txim siab ntau dua yog tias muaj teeb meem ntawm qhov chaw ntawd, koj kuj yuav tsum tau txiav lub hwj chim ntawm lub cuab yeej. Siv qhov ntau ntawm ohm ntawm lub multimeter kom paub meej tias yog qhov tseeb qhov kev txiav tawm ntawm qhov chaw ntawd, txhawm rau daws qhov teeb meem. Yeej, nws nyob ntawm koj qhov kev paub txog cov cuab yeej siv thiab kev ua tiav ntawm koj txoj haujlwm. Yog tias koj muaj lus nug ntxiv, thov koj xav nug.
Yuav ua li cas sau cov kev tsis sib xws nrog lub multimeter:
Siv ib lub ntsuas ntsuas los sau qhov tsawg kawg nkaus / siab tshaj / nruab nrab qhov tseem ceeb, thiab xaiv lub zog sib xws (AC voltage, DC voltage, hluav taws xob) raws li cov khoom ntsuas
Xyuas kom meej tias qhov ntsuas hluav taws xob txuas nrog kom zoo ua ntej ua kom muaj qhov tsawg kawg nkaus / siab tshaj / nruab nrab tus nqi muaj nuj nqi (impedance, AC tam sim no, DC tam sim no, thiab zaus), txwv tsis pub qhov tsawg kawg nkaus tus nqi nyeem ntawv yuav ib txwm yog tus nqi ib puag ncig ua ntej txoj kab sib txuas. Qhov no yuav cuam tshuam rau kev tsom xam ntawm cov ntaub ntawv kaw tom qab qhov kawg ntawm lub sijhawm kaw, qhib qhov tsawg kawg nkaus / tshawb nrhiav qhov siab tshaj plaws / nruab nrab tus nqi kaw, thiab cov khoom siv multimeter yuav qhia qhov kev nyeem ntawv siab tshaj plaws. Thaum kuaj pom qhov siab tshaj plaws lossis qhov tsawg kawg nkaus, lub suab nrov yuav raug tso tawm.
Qhov zoo ntawm qhov no yog tias, thaum ua kom ntseeg tau tias cov digital multimeter tsis cuam tshuam nrog thiab tsis muaj kev nyab xeeb rau leej twg, nws tuaj yeem tso rau hauv qhov chaw rau kev ntsuas thiab tsom mus rau lwm yam haujlwm. Txhua lub sijhawm thaum lub voj voog kaw, koj tuaj yeem saib cov ntawv nyeem tau khaws tseg lossis nres lub kaw lus yam tsis tas yuav rho tawm cov ntawv nyeem.
Yuav ua li cas tsis tu ncua kaw qhov tsis sib xws nrog multimeter:
Qee qhov multimeters tsis tsuas yog muaj lub luag haujlwm ntawm kev kaw qhov tsawg kawg nkaus / siab tshaj / nruab nrab qhov tseem ceeb, tab sis kuj tseem muab cov haujlwm no nrog lwm txoj haujlwm hu ua AutoHOLD thiab lub cim xeeb loj dua, tsim lub zog ntawm Event Logging. Kev saib xyuas tsis siv neeg tuaj yeem nkag siab thaum ntsuas lub teeb liab tsis ruaj khov thiab thaum nws ruaj khov dua. Los ntawm kev siv nws pib tuav muaj nuj nqi los ua kom pib thiab nres ntawm qhov tsawg kawg nkaus / siab tshaj tus nqi sau tseg, cov multimeter digital tsis txwv rau kev kuaj xyuas qhov ua txhaum uas tsim kom muaj qhov tsawg kawg nkaus lossis qhov siab tshaj plaws.
Yog hais tias lub multimeter muaj ib qho infrared RS232 interface, qhov txuas txuas ntxiv ua haujlwm yuav muaj zog dua, thiab nws tuaj yeem dhau los ua ib qho kev tshwm sim yooj yim los xa cov ntaub ntawv sau los ntawm multimeter mus rau lub computer. Los ntawm kev siv cov khoos phis tawj, cov ncauj lus kom ntxaws tuaj yeem ua tiav ntawm txhua qhov xwm txheej ruaj khov thiab tsis ruaj khov. Koj tuaj yeem tsis tsuas saib qhov tsawg kawg nkaus thiab siab tshaj qhov tseem ceeb nyob rau hauv txhua lub voj voog ruaj khov thiab tsis ruaj khov, tab sis kuj yog lub sijhawm pib thiab xaus ntawm txhua lub voj voog. Tsis tas li ntawd, sau tus nqi nruab nrab rau txhua lub voj voog. Nyob rau tib lub sijhawm, nws tuaj yeem tshawb xyuas qhov sib txawv ntawm qhov voltage lossis tam sim no hloov pauv.
3. Yuav ua li cas khij lub sijhawm kaw nrog lub multimeter:
Lub sijhawm thaum kuaj pom qhov tsawg kawg nkaus thiab qhov siab tshaj plaws yog cov ntaub ntawv tseem ceeb heev rau kev txiav txim siab qhov ua rau muaj qhov tsis sib xws. Ib qho digital multimeter tuaj yeem khaws lub sijhawm ntawm kev pib sau thiab txuag qhov tsawg kawg nkaus, qhov siab tshaj plaws, lossis qhov nruab nrab ntawm qhov tsawg kawg nkaus / siab tshaj / nruab nrab cov ntaub ntawv hom. Yog li ntawd, txhua qhov kev txuag tsawg kawg nkaus, qhov siab tshaj plaws, thiab tus nqi nruab nrab muaj qhov sib thooj 'lub sij hawm stamp'.
Niaj hnub no, cov multimeters nrog digital tau los lossis muaj peev xwm khaws cia kuj muaj tib lub strip kaw ua haujlwm los ntawm cov khoos phis tawj lossis lawv lub cim xeeb. Yog hais tias tus multimeter digital muaj qhov tsawg kawg nkaus / siab tshaj / nruab nrab tus nqi kaw, zoo li daim ntawv kaw lus, cov multimeter digital kuj tseem nyeem cov ntawv nyeem ntawm qee lub sijhawm. Tab sis tsis zoo li daim ntawv kaw lus uas khaws cov ntawv nyeem ib leeg, kev nyeem ntawv yog piv nrog cov ntawv nyeem uas tau khaws tseg yav dhau los los txiav txim siab seb tus nqi puas siab dua tus nqi siab tshaj yav dhau los lossis qis dua tus nqi qis tshaj yav dhau los j. Yog tias muaj, qhov kev nyeem ntawv tshiab yuav hloov tus nqi khaws cia hauv cov ntawv sau siab lossis qis nyeem ntawv. Tom qab lub sijhawm kaw, koj tuaj yeem khaws cov txiaj ntsig ntawm cov cuab yeej cia no rau kev tso saib thiab saib qhov siab tshaj plaws thiab qhov tsawg kawg nkaus ntawm lub sijhawm kaw.
