Yuav ua li cas siv lub multimeter los ntsuas qhov tam sim no ntawm lub ntsuas tam sim no
Txhawm rau ntsuas AC thiab DC tam sim no siv lub multimeter, qhov teeb tsa tam sim no ntawm multimeter yuav tsum tau teeb tsa rau AC lossis DC, thiab kev ntsuas yuav tsum tau ua los ntawm kev sib txuas ntawm multimeter hauv series nrog lub voj voog.
Rau ib tug pointer multimeter, nws cov liab sojntsuam yuav tsum tau txuas mus rau lub zoo davhlau ya nyob twg lub charger tso zis, thiab nws cov dub sojntsuam yuav tsum tau txuas mus rau lub charged hluav taws xob load. Yog hais tias ib tug digital multimeter yog siv los ntsuas qhov tam sim no nyob rau hauv ib tug them nqi hluav taws xob, nws cov liab thiab dub probes yuav ntsuas tus nqi ntawm AC los yog DC tam sim no nyob rau hauv lub Circuit Court txawm hais tias lawv rov qab, tsuas yog hais tias muaj ib tug - (- tsis zoo kos npe) nyob rau hauv pem hauv ntej ntawm cov zaub ntawm lub digital multimeter.
Rau kev ntsuas me me AC lossis DC them tam sim no, theem tam sim no ntawm multimeter tuaj yeem teem rau 500mA. Yog tias ntsuas qhov them tam sim no tshaj 500mA, nws yuav tsum tau teeb tsa lub pointer multimeter lossis digital multimeter rau 5A txoj haujlwm ntawm tus pointer multimeter (tshwj tsis yog rau ob peb tus qauv uas muaj 10A txoj haujlwm, MF47 multimeter feem ntau tsuas muaj 5A DC tam sim no txoj haujlwm. ), thaum lub digital multimeter muaj AC lossis DC tam sim no txoj haujlwm ntawm 10A lossis 20A.
Vim hais tias cov digital multimeter kuv feem ntau siv muaj kev hloov pauv tsis siv neeg, kuv tsuas tuaj yeem siv nws. Lwm cov digital multimeters tsuas yog yuav tsum hloov lub iav kom taw tes rau 20A. Thaum lub sijhawm no, ntxig lub xov tooj liab rau hauv 10 lub iav, thiab yog tias qhov kev sojntsuam dub tseem ploj lawm hauv qhov qub COM, nws txaus.
Nws yuav tsum tau muab sau tseg tias cov roj teeb feem ntau siv tas li voltage charging txoj kev rau kev them ceev ceev. Vim yog qhov them nyiaj tas li, qhov them tam sim no ntawm ob qho kawg ntawm lub roj teeb kuj tsawg, thiab qhov pib them tam sim no yuav loj. Raws li qhov voltage nce, qhov them tam sim no ntawm ob qho kawg ntawm lub roj teeb yuav maj mam txo. Yog li ntawd, cov nqi them tam sim no ntsuas ntawm lub sijhawm them nqi sib txawv.
Muaj qhov sib txawv tseem ceeb ntawm lithium roj teeb them thiab roj teeb them. Txhawm rau tiv thaiv qhov ua tau zoo tshaj plaws thiab siv sijhawm ntawm cov roj teeb lithium, feem ntau lawv tuaj yeem muab faib ua plaub theem: them ua ntej, them sai sai, them nyiaj ua kom zoo, thiab them nqi zog. Yog li, qhov them tam sim no ntawm txhua theem kuj yuav txawv.
Muaj clamp hom multimeters thiab zoo tib yam multimeters. Hom clamp yog yooj yim. Teem lub 'meter' mus rau hom tam sim no, tso cov hlau ntsuas rau hauv lub nplhaib clamp, thiab nyeem cov ntaub ntawv. Ordinary multimeters yuav tsum tau txuas nrog nyob rau hauv series mus rau lub Circuit Court. Ua tib zoo saib xyuas qhov ntau ntawm lub 'meter' thiab ceev faj tsis txhob hlawv nws tawm. Hom 'meter' no tuaj yeem ntsuas qhov tam sim no uas tsis loj heev thiab tsis haum rau ntsuas cov hluav taws xob tam sim no.
Tsuas yog txuas lub tshuab hluav taws xob mus rau lub voj voog them nyiaj, xaiv DC2A rau kev them ceev ceev thiab DC500mA rau kev them nqi qeeb. Los yog yuav cov lus nug tshwj xeeb rau kev them nyiaj ntawm lub xov tooj ntawm tes, uas tuaj yeem tshawb xyuas qhov hluav taws xob thiab roj teeb ib txhij, nrog ob lub LED zaub, tus nqi ntawm ib ncig ntawm 25 yuan, thiab ob qho tib si tawm tswv yim thiab cov zis yog USI3 interfaces.
Tsis tas li ntawd, ib qho 1 ohm resistor tuaj yeem txuas rau hauv cov kab hauv Circuit Court, thiab qhov hluav taws xob thoob plaws lub resistor tuaj yeem ntsuas ncaj qha. Tus nqi hluav taws xob yog tus nqi tam sim no. Vim tias qhov ntxig ntawm cov resistors ua rau txo qis hauv tag nrho tam sim no, qhov tseeb tam sim no yuav siab me ntsis siab dua qhov ntsuas tus nqi. Thaum 讠=v/R thiab R=1,
讠=v).
Teem lub multimeter rau qhov sib thooj tam sim no. Yog tias koj tsis paub, sim siv qhov ntau tshaj plaws. Feem ntau, qhov siab tshaj plaws ntawm multimeter yog 10A lossis 20A. Koj yuav tsum tau tshem tawm cov xov hlau liab thiab ntsaws rau hauv ib lub qhov (socket) tshwj xeeb. Txuas ib kawg ntawm lub charger mus rau lub roj teeb, thiab txuas ib qho ntawm ob lub multimeter probes mus rau lwm qhov kawg ntawm lub charger thiab lwm qhov mus rau qhov kawg ntawm lub roj teeb. Digital multimeter tsis muaj teeb meem. Yog hais tias nws yog ib tug pointer multimeter, koj yuav tsum xyuam xim rau polarity. Kev sojntsuam liab yuav tsum tau txuas nrog lub davhlau ya nyob twg zoo ntawm lub charger lossis lub davhlau ya nyob twg tsis zoo ntawm lub roj teeb, thiab qhov kev sojntsuam dub yuav tsum txuas nrog lub davhlau ya nyob twg tsis zoo ntawm lub charger lossis lub davhlau ya nyob twg zoo ntawm lub roj teeb. Nws nyob ntawm qhov kawg koj txuas mus rau.
Cov zis tam sim no ntawm ib txwm 12V charger yuav tsis tshaj 8A, thaum ib qho zoo dua yuav muaj cov zis loj dua tam sim no. Lub multimeter sojntsuam hlau yog nyias thiab tsis haum rau serial nrhiav tau ntawm charger tso zis tam sim no. Nws yog qhov zoo tshaj los siv cov cuab yeej ntsuas tsis sib cuag.
Multimeter muaj ob theem tam sim no (mA thiab A). Raws li cov lus qhia, ntxig cov liab thiab dub sojntsuam mus rau hauv lub qhov, tig lub multimeter mus rau tus coj A theem, thiab ces txuas cov liab thiab dub probes nyob rau hauv series mus rau tam sim no Circuit Court rau kev ntsuas.
