Yuav ua li cas siv lub clamp ammeter kom raug? Dab tsi yuav tsum tau ceev faj thaum siv?
1. Ua ntej ntsuas, cov roj hmab rwb thaiv tsev ntawm lub clamp hlau tseem ceeb yuav tsum tau kuaj xyuas kom tiav thiab tsis muaj kev puas tsuaj. Lub puab tsaig yuav tsum huv si, tsis muaj xeb, thiab tsis muaj qhov khoob khoob thaum kaw.
2. Thaum ntsuas, qhov loj ntawm qhov ntsuas tam sim no yuav tsum tau kwv yees ua ntej thiab yuav tsum xaiv qhov sib txawv. Yog tias nws tsis tuaj yeem kwv yees, koj tuaj yeem xaiv qhov loj dua, tom qab ntawd maj mam txo nws thiab hloov mus rau qhov tsim nyog iav. Thaum hloov cov iav ntau yam, nws yuav tsum tau ua yam tsis tau them nqi lossis nrog lub puab tsaig qhib kom tsis txhob ua rau lub ntsuas hluav taws xob puas.
3. Thaum ntsuas, cov hlau ntsuas yuav tsum muab tso rau hauv nruab nrab ntawm lub clamp kom ntau li ntau tau. Yog tias muaj suab nrov ntawm qhov sib koom ua ke ntawm lub clamp, nws yuav tsum tau qhib thiab kaw dua. Yog tias tseem muaj suab nrov, qhov sib koom ua ke yuav tsum tau kho kom qhov kev nyeem ntawv raug. Tsis tas li ntawd, nws tsis raug tso cai rau clamp ob lub xov hlau ib txhij.
4. Thaum ntsuas tam sim no qis dua 5A, txhawm rau kom tau txais kev nyeem ntawv ntau dua, yog tias muaj kev tso cai, cov hlau tuaj yeem raug mob ob peb zaug ntxiv thiab muab tso rau hauv lub clamp rau kev ntsuas. Tus nqi tam sim no yuav tsum yog qhov ntsuas kev nyeem ntawv faib los ntawm cov xov hlau uas muab tso rau hauv lub clamp.
5. Ua ntej thiab tom qab txhua qhov kev ntsuas, qhov hloov pauv rau kev hloov kho tam sim no yuav tsum tau muab tso rau hauv lub iav siab tshaj plaws kom tsis txhob ua rau lub ntsuas hluav taws xob puas tsuaj thaum siv tom ntej vim qhov ntsuas tsis tau xaiv qhov ntau.
teeb meem xav tau kev saib xyuas
Thaum siv lub clamp ammeter txhawm rau txhawm rau ntsuas tam sim no, nco ntsoov clip hauv ib lub xaim (xaim) raug kuaj. Yog tias ob kab sib txuas tau muab tso rau, qhov tam sim no tsis tuaj yeem kuaj pom.
Tsis tas li ntawd, thaum siv qhov chaw (hlau core) ntawm lub clamp ammeter rau kev kuaj pom, qhov kev ua yuam kev me me. Thaum kuaj xyuas cov khoom siv hluav taws xob hauv tsev, siv lub tshuab hluav taws xob sib cais yooj yim dua. Qee lub tshuab hluav taws xob sib cais tuaj yeem ua kom pom qhov tam sim no los ntawm 10 zaug, yog li tam sim no hauv qab 1A tuaj yeem nthuav dav ua ntej kuaj pom.
Thaum siv DC clamp ammeter txhawm rau txheeb xyuas DC tam sim no (DCA), yog tias qhov kev taw qhia tam sim no yog qhov txawv, nws qhia tus lej tsis zoo. Qhov kev ua haujlwm no tuaj yeem siv los txheeb xyuas seb lub tsheb lub roj teeb puas nyob hauv lub sijhawm them lossis tso tawm.
Kev kuaj pom tseeb RMS
Lub clamp ammeter nrog tus nqi nruab nrab ntsuas qhov nruab nrab tus nqi ntawm sine yoj los ntawm AC nrhiav pom, thiab qhia tus nqi tom qab amplification los ntawm 1.11 zaug (sine yoj AC) raws li tus nqi zoo. Waveforms uas tsis yog sine waves nrog sib txawv waveform tus nqi thiab skewed nthwv dej kuj tshwm sim tom qab tau nthuav dav los ntawm 1.11 zaug, ua rau muaj qhov yuam kev. Yog li ntawd, thaum kuaj pom waveforms thiab distortion sab nraum sine waves, thov xaiv lub clamp ammeter uas tuaj yeem kuaj ncaj qha tus nqi zoo.
Kev kuaj pom pom
Kev kuaj pom qhov sib txawv ntawm qhov kev kuaj pom tam sim no, qhov twg ob (ib theem 2- xov) lossis peb (ib theem 3- hlau, peb theem 3- hlau) yuav tsum tau clamped ua ke. Nws tseem ua tau kom clamp lub grounding hlau rau kev kuaj. Txoj kev tswj kev thaiv hluav taws xob txhawm rau txhawm rau txhawm rau tam sim no hauv cov hluav taws xob qis hluav taws xob tau dhau los ua qhov tseem ceeb ntawm kev txiav txim siab. Txij li thaum nws qhov kev pom zoo los ntawm xyoo 1997 hloov kho ntawm cov cuab yeej siv hluav taws xob, cov khoom siv hluav taws xob tam sim no tau maj mam siv los tshawb pom hauv cov tsev thiab cov chaw tsim khoom uas tsis tuaj yeem siv hluav taws xob.
