Kev ntsuas tsis kam nrog txoj kev clamp ammeter
Qee qhov clamp ammeters muaj qhov ntsuas kev ua haujlwm. Yog tias lub clamp ammeter koj muaj qhov haujlwm no, koj tuaj yeem ua raws li cov kauj ruam hauv qab no los ntsuas nws.
Kev ntsuas hluav taws xob:
① Tig qhov hloov mus rau qhov hluav taws xob thaiv ntawm qhov tsim nyog.
② Khaws qhov hloov pauv hauv lub xeev tso tawm.
③ Txuas qhov kev xeem liab coj mus rau "Ω" davhlau ya nyob twg thiab qhov kev xeem dub coj mus rau "COM" davhlau ya nyob twg.
④ Txuas qhov kuaj liab thiab dub ua rau ob qho kawg ntawm cov hlau raug ntsuas. Thaum ntsuas qhov tsis kam ntawm cov xaim hauv kev siv, cov kab yuav tsum raug txiav tawm ntawm lub hwj huam mov ua ntej, thiab lub capacitance txuas nrog cov hlau yuav tsum tau tso tawm tag nrho ua ntej ntsuas.
Hlau continuity test
① Tig qhov hloov mus rau 200Ω (los yog buzzer).
② Txuas qhov kev xeem liab thiab dub coj mus rau "Ω" davhlau ya nyob twg thiab "COM" davhlau ya nyob twg feem.
③Yog tias qhov kev tiv thaiv ntawm qhov kev xeem liab thiab xim dub yog tsawg dua (50 ± 25) Ω, lub buzzer built-in yuav suab nrov.
Yuav ua li cas ntsuas voltage nrog clamp ammeter
Lub clamp meter yog ib qho cuab yeej siv los ntsuas qhov tam sim no ntawm cov hluav taws xob khiav hluav taws xob. Nws tuaj yeem ntsuas qhov tam sim no yam tsis muaj kev cuam tshuam ntawm lub zog hluav taws xob. Lub clamp meter yog qhov tseeb tam sim no transformer. Cov hlau daig yog sib npaug rau thawj kauj ntawm lub transformer. Thaum muaj tam sim no nyob rau hauv cov hlau, hlau nplaum flux yuav raug generated nyob rau hauv lub hauv paus ntawm lub 'meter', thiab ces nyob rau hauv lub thib ob kauj ntawm lub 'meter' tam sim no induced. Qhov tam sim no yog sib npaug rau qhov tam sim no nyob rau hauv lub hauv paus kauj sib npaug los ntawm tus naj npawb ntawm lem ntawm thawj kauj (nws yog ib tug hlau, yog li nws yog ib tug tig) muab faib los ntawm cov xov tooj ntawm lem ntawm lub thib ob kauj. Tom qab ntawd raws li qhov kev sib raug zoo no, cov xaim tuaj yeem hloov dua siab tshiab Tam sim no hauv nws.
Lub clamp ammeter yog qhov tseeb ntawm electromagnetic inductor. Ib tug energized hlau generates ib magnetic teb. Qhov kev siv ntawm cov hlau nplaum tsim los ntawm qhov tam sim no txawv. Tus nqi tam sim no hloov dua siab tshiab ntawm lub ntsuas clamp yog qhov sib txawv vim qhov sib txawv ntawm peb theem voltage. Cov qhov tam sim no txawv, yog li koj tsuas tuaj yeem ntsuas qhov tam sim no ntawm ib theem, thiab tom qab ntawd xam qhov nruab nrab tam sim no. Thaum kawg, seb nws yog peb-theem 380v voltage lossis ob-theem 220v voltage, txoj kev siv yog tib yam.
