Ama-Multimeter Angcono Kakhulu ngisho nabasebenza ngogesi basebenzisa | Ukuthembeka Kochwepheshe

Ukuba i-electrician uzohlala uzithola une-multimeter yakho. Kungakhathalekile ukuthi yimuphi umsebenzi owenzayo, uzozithola usebenzisa i-multimeter njalo nje. Ngalokhu, ngeke kudingeke uncike kunoma yikuphi ukuqagela. Uzokwazi ukuthi kwenzakalani ngempela ngaphakathi kwesekethe.

Ukukhetha i-multimeter engcono kakhulu yabasebenza ngogesi kungaba yiphupho elibi njengoba abakhiqizi beshiya umehluko omncane kakhulu kulezi zinsuku. Ucwaningo lwethu olunzulu lwamathuluzi afakiwe anomhlahlandlela wokuthenga ophelele uzokunikeza umbono ocacile walokho okufanele uhlose ukukukhetha ukukhetha i-Multimeter ephezulu.

I-Multimeter for Electricians buying guide

Abasebenza ngogesi bayazazi izici nezici. Thina, lapha, sizobe sikhanyisela ngamunye wabo ukuze senze indlela yakho ibe bushelelezi. Lokhu kuzokuvumela ukuthi ufanise izidingo zakho nalokho okufanele ukubheke.

Yakha ikhwalithi

I-multimeter kufanele iqine ngokwanele ukuze imelane nanoma yikuphi ukwehla okumaphakathi okuvela ezandleni. Ama-multimeters ekhwalithi ephezulu anomzimba obamba ukushaqeka noma ikesi eliwavikela kunoma yikuphi ukwehla okumaphakathi. Isembozo somzimba wangaphandle ngokuvamile siyizinhlobo ezimbili - irabha nepulasitiki.

Izimo ezinezingxenye zenjoloba ziyikhwalithi ephezulu kakhulu kodwa zengeza okwengeziwe kusabelomali. Ngakolunye uhlangothi, ezapulasitiki zishibhile kodwa zivame ukuqhekeka esiliphuni sezandla.

I-Analog Vs Digital

Ama-Multimeters abenyakazisa imakethe kokubili ku-inthanethi futhi engaxhunyiwe ku-inthanethi ngawedijithali. Omunye angase azibuze ukuthi kungani kungenjalo ama-analogue. Hhayi-ke, ama-analog akhombisa ushintsho kumanani ngokucace kakhulu ngokushintsha kwenaliti. Kodwa emhlabeni wedijithali ukunemba kuyisici esibaluleke kakhulu ikakhulukazi ukuphatha amasekhethi kagesi. I-Digital Multimeter izokunikeza imiphumela enembe kakhulu.

Okuzenzakalelayo

I-multimeter enezici zokulinganisa ngokuzenzakalela inganquma noma icacise ububanzi bokumelana ne-determinant noma i-voltage noma i-current ngaphandle kokuthi umsebenzisi asho noma yini. Lokhu konga isikhathi esiningi sabasafufusa abasanda kuthola idivayisi. I-Multimeter ephezulu yabasebenza ngogesi kufanele babe nalesi sici.

Ukulinganisa okuzenzakalelayo kulula kakhulu akufani nokusukela lapho udinga ukufaka khona ububanzi futhi udinga ukukulungisa. Kodwa endabeni yokulinganisa okuzenzakalelayo, kuthatha isikhathi ukuthi i-Multimeter ikhiqize imiphumela.

Izitifiketi Zokuphepha

Ama-multimeter ngokuvamile anezitifiketi zezinga le-CAT njengezici zokuphepha. Kunamazinga ama-4 ezitifiketi ze-CAT. Okuvikeleke kakhulu amazinga e-CAT-III kanye ne-CAT IV.

Izinga le-CAT III libonisa ukuthi i-multimeter ingasebenza ngamadivayisi axhunywe ngqo kumthombo. Uma usebenza nenye yezinga le-CAT IV lapho-ke usendaweni ephephe kakhulu, njengoba ungakwazi nokuyisebenzisa ngqo emthonjeni wamandla. Lokhu kufanele kube i-multimeter yabasebenza ngogesi.

I-RMS Technology yeqiniso

Ku-AC noma Isilinganiso samanje esishintshayo samanje asishintshi. Uma ukumelwa kwesithombe zidwetshiwe, kuzoba igagasi elinesine. Kepha ngomshini ongaka oxhumekile, akuvamile ukuthola amagagasi e-sine aphelele ekhaya noma embonini. Kungakho i-Multimeter evamile yabasebenza ngogesi ingabaniki amanani anembile.

Yilapho ubuchwepheshe be-RMS buza ukuzotakula khona. Lobu buchwepheshe buzama ukulungisa leli gagasi ku-AC yamanje noma ama-voltages okusho ukuthi ikhiqiza amaza e-sine aphelele alinganayo ukuze i-Multimeter ikwazi ukuletha umphumela onembe kakhulu ngangokunokwenzeka.

Ukunemba

Lesi ngesinye sezici ezibalulekile osebenza ngogesi abahlose ukuzithola ngenkathi besebenza namasekethe. Uma umphumela unemba, isifunda sizosebenza ngokuphumelelayo. Bheka I-True RMS Technology ukuze ikunikeze amanani anembile. Isibalo sesibonisi siphinde sisize ekuzuzeni ukunemba okukhulu kuma-Multimeters kwabasebenza ngogesi.

Amakhono Okulinganisa

I-Voltage, ukumelana, yamanje, amandla, imvamisa yimisebenzi evamile okufanele ibe nayo i-Multimeter. Ukuba nekhono lokuhlola ama-diode, ukuqhubeka kokuhlola ngisho nezinga lokushisa kungakunika inzuzo enkulu kulo mkhakha. Akuyona into enhle ukuba nazo zonke lezi zinto kunalokho kuwumkhuba futhi lokho futhi ngesizathu.

Khombisa

Ukubona ukukholwa. Ngakho-ke, isibonisi kufanele sibe sekhwalithi enhle futhi kube lula ukusifunda. Ngosayizi ohloniphekile, isibonisi kufanele sibe namadijithi okungenani amane. Lapho okubili kuzo kuzoba inombolo egcwele futhi amabili azoba amafrakshini amadesimali

Ukusebenza ezimeni ezihlukene zokukhanyisa kuba yisithiyo ngaphandle uma isibonisi sibonisa ukukhanya okungemuva. Ikakhulukazi uma uvamise ukwenza izilinganiso endaweni emnyama noma emnyama, ayikho indlela ongaphuthelwa ngayo isibonisi esikhanyiselwe emuva.

Isisindo nobukhulu

I-multimeter iyidivayisi okufanele ilinganise amapharamitha ahlukahlukene wamadivayisi ahlukahlukene. Ukuze usebenzise induduzo, i-multimeter kufanele kube lula ukuhamba nayo.

Isisindo esihle sama-multimeters siyahlukahluka kusuka kuma-ounces ama-4 kuye kwayi-14. Impela ezinkulu nezisindayo zizovele zikubambezele. Kepha ezinye izici ezifana nezinsimbi zokulinganisa zamanje ze-AC zengeza isisindo futhi ungakudinga kabi lokho. Ezimweni ezinjalo gxila kakhulu ezicini futhi unciphise isisindo.

Resolution

Igama elithi ukulungiswa limelela ukuthi lingakanani inani elinembe elingatholwa. Ku-multimeter engaphansi kuka-50, ukulungiswa okuphansi kakhulu kwamandla kagesi kufanele kube ngu-200mV futhi okwamanje kube ngaphansi kuka-100μA.

Amapharamitha Alinganisekayo

Imfuneko eyisisekelo ye-multimeter ukuthi kufanele ilinganise okungenani amapharamitha amathathu ahlanganisa izilinganiso zamanje, i-voltage nokumelana. Kodwa lokho akukona kuphela ukuba yimbangi for the best choice. Ukuhlola ukuqhubeka kuyisici okufanele sibe nakho futhi kufanele kusekelwe uhla oluhle lwama-voltage nobubanzi bamanje.

Izici ezengeziwe ezifana nezilinganiso ze-frequency kanye ne-capacitance zivamile futhi. Kodwa uma ingeza kusabelomali futhi ungakudingi ngempela, ukuphuthelwa akuyona indaba.

Igcina Isici

Kuhle ukuba nevelu elondolozelwe ukusebenza kamuva. Isici sokubamba idatha senza iqhinga kulokhu futhi uma wenza izilinganiso eziningi ezisheshayo. Amanye ama-multimeters eza nesici esiphezulu sokubamba idatha okungelinye inani elipholile okufanele lengezwe ikakhulukazi uma ukuqhathaniswa kwedatha kuwumsebenzi wakho.

Ukunqunywa kwe-polarity

I-polarity isho indlela yokusetha efanele. Ama-multimeters ngokuvamile anama-probe amabili ane-polarity ehlukene kanti ukulinganisa ukungafani kuma-polarity kungaholela ekususeni ngaphambi kwevelu elinganisiwe. Lesi isici esilula kodwa esiyisisekelo futhi kulezi zinsuku cishe awekho amamitha amahle angenawo.

Ukulinganisa Ibanga

Lapho ububanzi bokulinganisa buyanda, izinhlobo eziningi zamathuluzi zingalinganiswa. Inani lama-Voltage kanye nobubanzi bamanje butholakala kuma-multimeters angenawo ukulinganisa okuzenzakalelayo. Ukwandisa ithuba lokukala ububanzi obuphezulu buyakhethwa. Kodwa futhi, nikeza isheke ekuthengeni kwakho nesidingo.

Okuzenzakalelayo

Ukulinganisa kwenziwa ezinhlotsheni ezihlukahlukene. Ngakho-ke, ukuze ubhekane nobubanzi, i-multimeter isebenzisa imikhakha ehlukahlukene edinga ukulungiswa ngenkomba. Qaphela ukuthi, ukukala ebangeni eliphansi kuzothinta impilo yedivayisi yakho.

Isici sokulinganisa okuzenzakalelayo sisiza ngokuzenzakalelayo ukulungisa ububanzi futhi konga isikhathi. Yebo, amamitha angalingani ngokuzenzakalelayo ashibhile kodwa umehluko muncane uma kuqhathaniswa nokukhululeka nokushelela okutholayo.

Isibonelelo se-AC/DC

Kumasekhethi asebenzisa i-alternating current, ukuthenga kuphela i-multimeter yokulinganisa i-DC kuzomane kubalwe njengokupha umdayisi isisa futhi okuphambene nalokho. Isilinganiso samanje se-AC sivame ukucela ukusetshenziswa kwamamitha okubamba futhi sikhuphule kokubili isisindo nesabelomali. Kodwa, lokho kulungile ngokuphelele uma izilinganiso ze-AC ziyilokho okudingayo. Ama-DIYers nabakhi bephrojekthi abancane bangase bangadingi ukukala kwamanje kwe-AC.

Ukusebenza Environment

Izingxenye zikagesi zisetshenziswa yonke indawo kuhlanganise nezindawo ezimnyama njengendawo engaphansi komhlaba nangaphansi. Isikrini esingenaso ukukhanya okuzidalele sona ngeke siphumelele njengoba uzokuthola kunzima ukufunda amanani. Kudingeka isici esikhanyisiwe ukuze kubhekwane nenkinga.

Ukuphepha

Ukushoda kokufakwa okufanelekile kuma-probe noma iziqeshana zengwenya kungase kukwenze ufe uma usebenza ngolayini wokuphakela ugesi. I-fuse ekabili enezivikeli ezikabili nokuphepha kokulayisha ngokweqile kuzo zonke izigaba kufanele ihlolwe ukuze isetshenziswe ngokuphephile. Futhi, ekuvikelweni kokwehla kokuphepha kwedivayisi nokuvikelwa kwekhona kubalulekile njengoba ufuna kuhlale isikhathi eside.

Iphutha

Iphutha libonisa ukunemba kwemitha. Khulisa iphutha, yehlisa ukunemba. Ngeke uthole noma yimuphi umkhiqizi ocacisa iphesenti lephutha kulawa angaphansi kwama-multimeter angu-50$. Thenga okuphansi okungcono umthetho wesithupha kuleli cala.

Inkomba yebhethri nebhethri

Kuyacasula kakhulu ukushona kwemitha ube uphakathi kokuthile. Yingakho uzobona amamitha amaningi anenkomba engaphakathi kwesibonisi noma i-LED yangaphandle ekhombisa ukushajwa kwebhethri.

Futhi mayelana nebhethri, wonke ama-multimeters angaphansi kuka-50 engihlangabezane nawo asebenzisa ibhethri ye-9V eshintshwayo. Amanye amabhrendi ahlinzeka ngeyamahhala ene-multimeter.

Nakuba ukuba yibhethri elinamandla a-lite kubalulekile njengoba kunquma isikhathi sokuphila se-multimeter. Enye i-multimeter engaphansi kuka-50$ ihlinzeka ngenkomba yebhethri ukuze isebenze ngaphandle kokushuba kokucisha kwamandla asheshayo.

Ama-Multimeter Angcono Kakhulu ngisho nabasebenza ngogesi babuyekeziwe

Siqhamuke nama-Multimeter avelele kakhulu kwabasebenza ngogesi emakethe esizosebenza nawo. Zihlelwe ngendlela ehlelekile nazo zonke izici nama-laggings anikezayo. Ake sifunde ke.

I-Fluke 117 Electricians True RMS Multimeter

Izici zokuma

Njengengxenye yochungechunge lwe-Fluke 110, imodeli ye-117 inekhwalithi enhle yokwakha ukuze iphile ezimeni ezimbi. Njengoba yakhiwe ngezinto ezihamba phambili azikwazi ukumelana nokushaqeka kusuka kumathonsi ajwayelekile. Idizayini ye-ergonomic inika wonke umuntu ukubamba okuhle futhi ilingana kahle ezandleni zakho. Lokhu kwenza ukusebenzisa idivayisi kukhululeke.

Le Multimeter engasindi inesici sokubona i-voltage engaxhunywanga emi njengesici sokuphepha ongathembela kuso. Isici sokubamba ngokuzenzakalela sikuvumela ukuthi ugcine imiphumela ngenkathi ungenza ukuqaphela kwakho okulandelayo. Njengochwepheshe kagesi ungafuna umphumela onembe kakhulu ongawuthola, isici se-True RMS se-Fluke sikunikeza leyo nzuzo.

Isibonisi se-LED esikhanyiselwe ngokuphezulu sikuvumela ukuthi ufunde ngaphandle kwengcindezi esweni ngisho nasezimeni zokusebenza ezimnyama. I-impedance yokufaka ephansi ivimbela ukungavumeli noma yiluphi uhlobo lokufunda okungamanga. Iyunithi inesilinganiso sokuphepha se-CAT III.

Akubona ochwepheshe bakagesi abayisisekelo kuphela kodwa nochwepheshe bemboni ekhanyayo & ochwepheshe be-HVAC bangasebenzisa lo mshini emsebenzini wabo. Ungathola ukufundwa okumaphakathi kwamanani amanje, amandla kagesi, amandla kanye namavaluli ngokunemba okukhulu. Ayisaphathwa-ke iphuma newaranti yeminyaka emi-3 eyenza ithembeke.

Laggings

Unenkinga yokulinganisa okwamanje ngamavelu aphansi njengama-microamp noma ama-milliamp. Isibonisi siphinde silahlekelwe ukugqama okuthile kuma-engeli athile. Futhi ayinazo izilinganiso zokuphepha ze-CAT IV.

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I-Amprobe AM-570 Industrial Digital Multimeter ene-True-RMS

Izici zokuma

I-Amprobe AM-570 iyithuluzi elihle kakhulu eliyindilinga elinekhwalithi yokwakha eqinile. Ingakwazi ukukala i-AC/DC voltage ifike ku-1000V ihambisana namandla, imvamisa, ukumelana nezinga lokushisa. Isici se-Dual Thermocouple siyivumela ukuthi ithathe ukufundwa kwezinga lokushisa kumasistimu e-HVAC.

Isici sokuthola amandla kagesi okungeyena othintana naye sethulwe yi-Amprobe njengesici sokuphepha. Izihlungi zokudlula okuphansi zikhona futhi ukuvimba noma iyiphi imvamisa ye-voltage ye-AC engaphezu kuka-1kHz. Imodi ye-impedance ephansi ikuvumela ukuthi ubone ama-voltages ayisipoki futhi uwaxoshe.

Isikrini esikhanyisiwe sikukhombisa ukubala okungu-6000. Kunemodi yokubonisa ekabili lapho abasebenzisi bangaqhathanisa khona imiphumela yangaphambilini namanani abo amanje. Imodi ye-Max/Min ikunikeza amanani aphezulu naphansi, lokhu kuyasebenza nakuzinga lokushisa.

I-Multimeter inezinga lokuphepha le-CAT-IV / CAT-III. Ngezici ze-RMS zangempela, idivayisi inikeza imiphumela ngokunemba okukhulu. Iphinde ibe nethoshi le-LED futhi. Lona idivayisi ephelele yokugcina inkampani yakho kunoma iyiphi indlu noma imboni ekhanyayo lapho ungasebenza khona emisebenzini ehlukahlukene ngomshini owodwa kuphela.

Laggings

Isici sokuthola i-voltage engaxhunywanga kuhle ukuba nayo kodwa ifinyelela ku-8mm kuphela, engaphansi kakhulu kwalokho. imitha ngocingo inikeza. Ukulinganisa okuzenzakalelayo nakho kubonwa ukuthi kusebenza kancane. Ukukhanya kwangemuva kwesinye isikhathi kuyehla okwesikhashana.

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Ikhithi Yokuhlola Kagesi ye-Klein ene-Multimeter

Izici zokuma

I-Klein, yiba ngomunye wabakhiqizi abahamba phambili bamadivayisi wokulinganisa, ungalokothi udedele ikhwalithi nezici. Kuma-multimeters okukhulunywe ngawo, bangeze inqwaba yezici ezingase zibe yinto ebaluleke kakhulu kunoma yibaphi abasebenza ngogesi. Okokuqala nje, le mitha iyakwazi ukukala noma yiluphi uhlobo lwamanje nama-voltage njengama-voltage e-AC noma e-DC, i-DC yamanje, nokumelana.

Into yokuqala ezofika engqondweni yakho ukuphepha kwethuluzi ngenkathi ulisebenzisa. U-Klein uqinisekisa ukuphepha nge-CAT III 600V, Ikilasi 2 kanye nokuvikela ukufakwa kwe-insulation okuphindwe kabili okusho ukuthi nonke niphephile kungakhathaliseki ukuthi usebenza namanje aphansi noma aphezulu.

Ingxenye engcono kakhulu i-LED ekhanyayo eluhlaza, ikhombisa ukuthi i-multimeter iyasebenza noma cha. Le LED iphenduka ibe RED uma imitha ithola noma imaphi ama-voltage. iphinde ikhiphe umsindo ukuze ukutholwa kube lula kakhulu.

Isebenzisa ibhethri elinamandla, ukunweba impilo yebhethri kukhona isici sokuvala amandla okuzenzakalelayo esivala ithuluzi uma ungasebenzi nge-multimeter. inkinobho elawulwa ngokwedijithali ON/OFF inikeza ukulawula okwengeziwe phezu kwethuluzi.

Ezinye zezici ezibalula yilezi njengezintambo umhloli ukuze ahlole ukuthi ingabe izintambo zilungile noma zinephutha, zikhomba uxhumo lwendawo evulekile noma uxhumano oluvulekile oluphakathi nendawo. Izophinde ikwazise ngezimo ezishisayo ezivulekile kanye nokushisa noma okuphambene nomhlaba lapho kudingeka.

 Laggings

Okubi ukuthi ngeke uthole iziyalezo ezicacile noma ezifanele kubakhiqizi mayelana nokusebenzisa imitha ngendlela efanele. Imikhondo ishibhile futhi kwesinye isikhathi ifika inamaphutha.

Ayikho imikhiqizo etholakele.

I-BTMETER BT-39C yeqiniso ye-RMS Digital Multimeter Electric Amp

Izici zokuma

I-BTMETER inohlelo olubanzi lwezinhlelo zokusebenza emkhakheni kagesi kochwepheshe. Imitha ingakwazi ukukala ngokunembile amandla kagesi e-DC ku-6000mV kuya ku-600V, i-AC voltage ifika ku-6000V, amandla angu-9.999nF kuya ku-99.99mF, ukumelana, umjikelezo womsebenzi ngisho nezinga lokushisa. Ukuhlola Ukuqhubeka nakho kungenziwa kusetshenziswa le divayisi.

Isibonisi sinesici sokulawula ukukhanya okuguquguqukayo esizojwayela ukukhanya kwesibonisi ngokwendawo ngokuzenzakalelayo. Izinga lokushisa lamanje lemvelo lingafinyelelwa ngokucindezela inkinobho. Isici sokuvala ngokuzenzakalelayo silondoloza amandla ebhethri uma ukhohlwe ukulivala.

Isici se-Zeroing sethulwa lapha ngenkathi sisebenza ngesici sokufunda kancane sizokunikeza umphumela onembe kakhudlwana. Ukuvikela okugcwele kakhulu kukhona ezimweni zokugcwala kakhulu. Ungabamba idatha yemiphumela yangaphambilini ukuze uyiqhathanise nale ekhona kakade.

Ubuchwepheshe be-RMS beqiniso bunikeza imitha izinga elikhulu lokunemba. Umazibuthe onamathiselwe ngemuva uvumela umsebenzisi ukuthi awulengise endaweni yensimbi. Le Multimeter yenzelwe ikakhulukazi izicelo zasekhaya, ukusetshenziswa kwezinga lesikole ngisho nezimboni.

Laggings

Kumodi yokulinganisa ngokuzenzakalela, idivayisi ibonakala isebenza kancane kancane. Umbambi we-side probe ubonakala engathandeki, kepha lokho kuyehluka kubantu kuye kubantu.

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I-Bside Electricians Digital Multimeter 3-Line Bonisa Isikrini Esikhulu I-RMS 8000 yeqiniso

Izici zokuma

I-Bside digital Multimeter inesikrini sokucaca okuphezulu esikuvumela ukuthi ubone imiphumela yokuhlolwa emigqeni emithathu ehlukene. Ungabona ukumelana, imvamisa & i-voltage noma izinga lokushisa ngesikhathi esifanayo ezindaweni ezi-3 ezihlukene. Iphinde ibe nokuma kwe-EBTN kwesibonisi se-LCD esisontekile sangemuva esithuthukisiwe esiphatha amehlo akho ngokucasuka okumbalwa.

Idivayisi ingakala i-AC/DC voltage, yamanje, ukumelana, amandla, imvamisa, ukuhlolwa kwe-Diode, i-NCV & duty cycle ebangeni elibanzi lokulinganisa. Esinye sezici ezivelele zalo mshini umsebenzi we-VFC okwazi ukukala ugesi ophumayo wama-inverters. Ubuchwepheshe beqiniso be-RMS buqinisekisa ukunemba okuphezulu ngawo wonke amanani azuziwe.

Idatha ingabanjelwa ukuze ihlaziywe okwengeziwe ngevelu yamanje etholiwe. Futhi inenkomba yebhethri ephansi ukuze ukwazi ukuyishintsha uma kudingekile. Ungathola ukushaya kwenhliziyo okungafika ku-5MHz usebenzisa amajeneretha angama-square wave. Idizayini yesibambi se-Dual probe ngemuva ikunikeza inzuzo.

Laggings

Incwadi yeziqondiso ibonakala ingenalo ulwazi mayelana neyunithi yonke. Kuphinde kwabonwa ngabanye abasebenzisi ukuthi ngaphandle kokusetshenziswa njalo kwedivayisi, ngezinye izikhathi ayisebenzi kahle.

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I-multimeter ehamba phambili ngaphansi kokungu-50: INNOVA 3320 Auto-Ranging Digital Multimeter

Izinzuzo

Ngobukhulu obuncane obungangena esandleni kanye nama-ounces angu-8 ngesisindo, i-multimeter ilungile ukuhamba ngayo. Ukuvikelwa kokulahla kunikezwa onogada bakhona benjoloba kanye ne-impedance ephezulu ye-10 Mohm ephephile kokubili izinhloso zikagesi nezezimoto. I-multimeter ingakala yamanje, i-voltage, ukumelana nokunye mayelana ne-AC ne-DC yamanje.

Njengoba uyi-multimeter engaphansi kuka-50$, lo mkhiqizo ufika nezici ezikhethekile ezifana nokulinganisa okuzenzakalelayo. Uma ungumfundi oqalayo noma unenkinga yokulungisa uhla ngesandla, lo mkhiqizo kufanele ube usizo kuwe. Enye insizakalo ehlinzekwa yile multimeter iyisistimu yokuvala ngokuzenzakalela evala ngokuzenzakalelayo ngemva kokushiywa ingasetshenziswa ngezinye izikhathi.

Idivayisi isetshenziswa amabhethri e-AAA futhi inesici senkomba ye-LED ebomvu ekhombisa kalula isimo sebhethri. Njengomkhiqizo odlule, iza nesihlakala kanye nebhande lokuma elivumela ukusebenza okungenazandla. Futhi umkhiqizo uqinisekiswa uphephile yi-UL. Ngakho, ukusetshenziswa okuphephile kuqinisekisiwe.

Izinkinga

Isibonisi sebhethri kwesinye isikhathi siyehluleka ukuhlinzeka ngesimo esilungile sebhethri. Ububanzi obuncane obungu-200mA bube yinkinga kubasebenzisi abaningi njengoba kudingeka amandla aphansi kwesinye isikhathi ukuze kukalwe. Futhi, asikho inkomba ye-polarity enikeza inani elingalingani kahle loxhumo olungalungile.

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I-multimeter yesabelomali ehamba phambili: I-AstroAI Digital Multimeter ene-Ohm Volt Amp

Izinzuzo

Ukuba nobukhulu obuncane obulingana nephakethe kanye nesisindo esingama-ounces angu-4 kuphela le multimeter ingakunikeza kalula. Izici zokuphepha ezifana nonogada bakhona berabha kanye nefuse eyakhelwe ngaphakathi yalo lonke uhla oluvikelekile usuku nosuku ukuqapha ukusetshenziswa kukagesi. Izinsizakalo ezinikeziwe zihlanganisa ukulinganisa amandla kagesi e-AC DC, ukuqhubeka, ama-diode, nezinye okufanele zihlanganise zonke izidingo zakho zansuku zonke.

Imboza konke lokho le divayisi efika nezici ezifana nokubamba idatha esiza kakhulu uma usebunzimeni bezilinganiso. Futhi, inenkomba yebhethri ephansi ekwazisa ukuthi udinga ukushintsha nini amabhethri. Isici sokukhanya kwe-backlit sengezwa kusibonisi ukuze sisetshenziswe ezimeni ezimnyama.

Ngama-voltage aphansi, idivayisi inikeza ukulungiswa okuhle. I-multimeter futhi iza ne-back stand efakwe ngaphambili evumela abasebenzisi ukuthi basebenze ngaphandle kwezandla. Inikwe amandla ibhethri le-9V 6F22, i-multimeter inempilo ehloniphekile yokusebenza. Ukuba yi-multimeter engaphansi kuka-50, zonke lezo zici zenza lo mkhiqizo ube yimbangi yabaphezulu kakhulu.

Izinkinga

Ngamandla aphezulu, lo mkhiqizo unezinkinga ezithile ekuxazululeni. Okugqamayo okushodayo ukuthi ayikwazi ukukala i-AC yamanje. Kunezikhalazo zokuthi ikhwalithi yokwakha yalo mkhiqizo ishibhile. Ngakho-ke ukusetshenziswa kwesikhathi eside kungase kungatholakali ngokuphathelene nale divayisi.

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I-Etekcity Auto-Ranging Clamp Meter, Digital Multimeter ene-Amp, Volt, Ohm, Diode

Izinzuzo

I-Dimension ehloniphekile ene-insulation ephindwe kabili nokuphepha kwe-voltage ngokweqile, i-multimeter ikhishwa iphephile ukuze isetshenziswe izinjongo zasendlini. Eqinisweni, ingenye ye ama-multimeter ezimoto ezisezingeni eliphezulu. Izilinganiso ze-voltage ye-AC/DC, i-AC yamanje, ukumelana ne-diode nokuqhubeka kungenzeka ngale divayisi.

Njengeyangaphambili, le multimeter inokulinganisa okuzenzakalelayo okugcina isikhathi sokushintsha ububanzi bezilinganiso ezihlukahlukene. Isici esikhethekile efika naso yi-clamp yokuvula imihlathi engangena kuma-conductor angama-28-millimeter. Lesi sici sisiza ukulinganisa okuphephile ngaphandle kokushintsha isifunda sesisekelo. Futhi, le multimeter inokubamba idatha kanye nesevisi yenani eliphezulu lokunethezeka ekukaleni.

Isebenza ngebhethri engu-2 AAA, le multimeter inikeza impilo yonke engu-150h, okude kakhulu. Isistimu yokuzicisha ngokuzenzakalelayo inikwe amandla ngemizuzu eyi-15 ukonga ibhethri. Isibonisi sedivayisi sikhulu kakhulu ukuze kufundwe idatha kalula. Ijubane lesampula lale divayisi liphezulu kakhulu okungamasampuli angu-3 ngomzuzwana.

Izinkinga

Ayilungele indawo yokusebenza yokukhanya okuphansi njengoba asikho isici esikhanyisa ngemuva esengeziwe. Ayilinganisi i-DC yamanje okuwumphumela omkhulu. Abanye abasebenzisi bathole izinkinga ngekhwalithi yokwakha yale multimeter. Isisindo esiphezulu sama-ounces angu-13.6 le multimeter isinda kancane kunezinye.

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I-Neoteck Auto-Ranging Digital Multimeter AC/DC Voltage Yamanje ye-Ohm Capacitance

Izinzuzo

Ubukhulu obuhloniphekile kanye nesisindo sama-ounces angu-6.6 kuphela le multimeter ilungele ukuthwala. Ukuvikelwa kokuwa kunikezwa ngesembozo sepulasitiki esithambile esingasheleli esivikela wonke umzimba. Ukwengeza kulokho, ukuphepha kwe-insulation kabili kunikezwa ukuze kuphephe ekushaqekeni. Izinhlobo eziningi zokulinganisa zingenziwa kule multimeter njenge-AC/DC yamanje, i-voltage, ukumelana, amandla kanye nemvamisa.

Njengabanye okukhulunywe ngabo ngenhla, ukulinganisa okuzenzakalelayo kuyatholakala kule divayisi. Kule multimeter engaphansi kuka-50$, i-buzzer yengezwa ukuze kuhlolwe ukuqhubeka ukuze kuhlolwe kalula. Futhi, inketho yokubamba idatha kanye nenketho yokulondoloza inani eliphezulu iyatholakala futhi. Ukusetshenziswa kwezandla kunikezwa yisitendi esakhelwe ngaphakathi. Ngokuhambisana nalezo, ukutholwa kwe-auto polarity kukusiza ukuthi usebenze ngaphandle kokucabanga ngokuzungezisa ukuxhumana.

Ngaphandle kwebhethri le-9V elifakiwe, i-multimeter ihlala ifile. Isibonisi sinesici esikhanyisa emuva esengeziwe ukuze sisebenze ezindaweni zokukhanya okuphansi. Ukulungiswa kanye nobubanzi bale multimeter kuningi kunabanye okukhulunywe ngenhla. Kungezwe inkomba yebhethri ephansi ezosula ukushuba kokuphela kwebhethri ngenkathi isebenza.

Izinkinga

Izilinganiso ezihlukahlukene ziletha amaphutha ahlukahlukene. Ngakho, ezinye izici zingase zibe nesici. Ngezinye izikhathi, ukufundwa akuhambelani. Inenkinga ngekhwalithi yokwakha.

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Imibuzo Evame Ukubuzwa

Nayi eminye imibuzo ebuzwa njalo nezimpendulo zayo.

Yini i-multimeter elula ukuyisebenzisa?

Ukukhetha kwethu okuphezulu, i-Fluke 115 Compact True-RMS Digital Multimeter, inezici zemodeli yepro, kepha kulula ukuyisebenzisa, noma yabaqalayo. I-multimeter iyithuluzi eliyinhloko lokuhlola lapho okuthile kukagesi kungasebenzi kahle. Ikala amandla we-voltage, ukumelana, noma wamanje kuma-wiring circuits.

Kufanele ngisebenzise malini ku-multimeter?

Isinyathelo 2: Kufanele usebenzise malini kwi-multimeter? Isincomo sami ukuchitha noma kuphi cishe u- $ 40 ~ $ 50 noma uma ukwazi ukukala u- $ 80 hhayi ngaphezu kwalokho. … Manje ezinye zeMultimeter zibiza ngo- $ 2 ongazithola ku-Amazon.

Uyisebenzisa kanjani i-multimeter eshibhile?

Ingabe ama-multimeter ashibhile alungile?

Amamitha ashibhile mahle ngokwanele, nakuba uthola lokho okukhokhelayo, njengoba ungalindela. Inqobo nje uma unemitha evuliwe, ungase uyigebe ukuze ube ne-WiFi. Noma, uma uthanda, imbobo ye-serial.

Yini i-multimeter elula ukuyisebenzisa?

Ukukhetha kwethu okuphezulu, i-Fluke 115 Compact True-RMS Digital Multimeter, inezici zemodeli yepro, kepha kulula ukuyisebenzisa, noma yabaqalayo. I-multimeter iyithuluzi eliyinhloko lokuhlola lapho okuthile kukagesi kungasebenzi kahle. Ikala amandla we-voltage, ukumelana, noma wamanje kuma-wiring circuits.

Ingabe ngidinga i-multimeter ye-RMS yangempela?

Uma udinga ukukala i-voltage noma amasiginali we-AC angewona amaza e-sine amsulwa, njengalapho ukala okukhiphayo kwezilawuli zenjini yesivinini esilungisekayo noma izilawuli zokushisisa ezilungisekayo, lapho-ke udinga imitha “ye-RMS yeqiniso”.

Ingabe i-multimeter ye-Fluke iyifanele imali?

I-multimeter yegama lomkhiqizo ikufanele ngokuphelele. I-multimeter ye-fluke ezinye ezithembeke kakhulu laphaya. Baphendula ngokushesha kunama-DMM amaningi ashibhile, futhi iningi lawo linebha-graph ye-analog ezama ukuhlanganisa igrafu phakathi kwamamitha e-analog nedijithali, futhi ingcono kunokufundwa kwedijithali okumsulwa.

Uyini umehluko phakathi kwe-Fluke 115 kanye ne-117?

I-Fluke 115 ne-Fluke 117 womabili ama-True-RMS Multimeters anezinombolo ezinkulu ezingu-3-1/2 / 6,000 count displays. Ukucaciswa okukhulu kwalawa mamitha kucishe kufane ncamashi. … I-Fluke 115 ayifaki noma iyiphi yalezi zici – lona ukuphela komehluko wangempela phakathi kwamamitha amabili.

Ingabe kufanele ngithenge imitha yokubopha noma i-multimeter?

Uma umane ufuna ukulinganisa okwamanje, imitha yokubopha ilungile, kodwa kwezinye izilinganiso ezifana ne-voltage, ukumelana, kanye nemvamisa i-multimeter iyakhethwa ukuze ilungiswe kangcono kanye nokunemba. Uma umayelana nokuphepha, I-clamp meter ingaba yithuluzi elingcono kakhulu ngawe njengoba iphephile kune-multimeter.

Iyiphi i-analog engcono noma i-digital multimeter?

Njengoba ama-multimeter edijithali ngokuvamile anembe kakhulu kunozakwabo be-analogue, lokhu kuye kwaholela ekwandeni kwama-multimeters edijithali, kuyilapho isidingo se-multimeter ye-analogue sehlile. Ngakolunye uhlangothi, ama-multimeter edijithali ngokuvamile abiza kakhulu kunabangane bawo be-analogue.

Kusho ukuthini ukubala kwe-TRMS 6000?

Izibalo: Ukulungiswa kwe-multimeter yedijithali nakho kucacisiwe ekubaleni. Izibalo eziphezulu zinikeza ukulungiswa okungcono kwezilinganiso ezithile. … U-Fluke unikeza amadijithi amaningi angu-3½ anezinombolo ezifika ku-6000 (okusho ubuningi obungu-5999 esibukweni semitha) namamitha anezinombolo ezingu-4½ nokubala okungu-20000 noma 50000.

Ithini i-RMS yeqiniso yemitha?

Ama-multimeter eqiniso aphendulayo e-RMS akala amandla “wokushisa” we-voltage esetshenzisiwe. Ngokungafani nesilinganiso "sokusabela okumaphakathi", isilinganiso sangempela se-RMS sisetshenziselwa ukunquma amandla ahlakazekile kusiphikisa. … “Inani lokushisisa” kuphela lezingxenye ze-ac zefomethi ye-waveform yokufaka kukalwa (i-dc inqatshiwe).

Isho ukuthini i-RMS yangempela ku-multimeter?

I-True Root Mean Square
Februwari 27, 2019. I-RMS imele ukuthi Root Mean Square kanye ne-TRMS (True RMS) ye-True Root Mean Square. Amathuluzi e-TRMS anembe kakhulu kune-RMS lapho akala i-AC yamanje. Yingakho wonke ama-multimeters kukhathalogi ye-PROMAX enamandla okulinganisa i-RMS Yangempela.

Ingabe u-Klein uyi-multimeter enhle?

I-Klein yenza amanye ama-DMM aqine kakhulu, angcono kakhulu (ama-digital multimeter) futhi atholakala ngengxenye yenani lemikhiqizo yamagama amakhulu. … Ngokuvamile, uma uhamba ne-Klein ungalindela i-multimeter yekhwalithi ephezulu, engabizi engakweqi ukuphepha noma izici.

Ngihlola kanjani uma i-multimeter yami isebenza?

Vula ukudayela ku-multimeter yakho ukuze ukusethe ukukala i-voltage kunokumelana. Beka i-probe ebomvu ngokumelene netheminali ephozithivu yebhethri. Thinta i-probe emnyama uye kutheminali enegethivu. Qinisekisa ukuthi i-multimeter inikeza ukufundwa kwe-9V noma eduze kakhulu nayo.

Kuyini ukuhlolwa kokuqhubeka?

I-Ans: Noma kunini lapho kunomzila ophelele wokugeleza kwamanje, lesi simo sibizwa ngokuthi ukuhlola okuqhubekayo kwamasekhethi. Namuhla ama-multimeters e-Digital angahlola kalula ukuqhubeka kwesekethe. Ama-fuse noma amaswishi noma ukuxhumana kukagesi kunokuqhubeka kukho. Ngokuvamile, ibhiphu ezwakalayo evela ku-Multimeter imelela ukuqhubeka kwesekethe.

Akuwona wonke ama-Multimeter angenza ukuhlolwa kokuqhubeka.

Indlela hlola ukuthi i-multimeter isebenza kahle?

I-Ans: Kukhona amasu amaningana. Ekuqaleni, ungahlola i-multimeter yakho ngokuyimisa ekumelaneni okuphansi kakhulu bese kufanele wenze ama-probes abomvu namnyama axhumane. Kufanele ifundeke "0", bese isebenza kahle.

Ungathola futhi ukumelana kwe-resistor eyaziwayo. Uma i-Multimeter ibonise inani eliseduze kakhulu nelangempela, khona-ke isebenza kahle.

Sisho ukuthini isici 'sokubala' sesibonisi?

I-Ans: Ngokujwayelekile, kungashiwo ukuthi uma inani lesibalo liphakeme liyobonisa inani elinembe kakhulu ku-Multimeter.

Isiphetho

Abakhiqizi abanikezanga ithuba lokuthi abasebenzisi benze isinqumo se-multimeter engcono kakhulu yabasebenza ngogesi Bangeze izici eziningi ezikhethekile nezibalulekile futhi bayaqhubeka nokusebenza imini nobusuku ku-R&D ukuze bathuthukise ukusebenza kwamadivayisi. Silapha ukuze sikusize wenze umqondo wakho ngemibono yethu yochwepheshe.

Uma bekufanele sikhethe eyodwa kokuningi, khona-ke iFluke 117 ingaba yisinqumo esihle. Ngokwakhiwa okumangalisayo, izinhlelo zokusebenza ezihlukahlukene & newaranti yeminyaka emi-3 i-Fluke ngokuqinisekile ilethwe ngokungcono kakhulu kwalesi sabelomali. I-Amprobe & BTMETER ingemuva kwe-fluke enezici ezifanayo kanye nokwethembeka ukuze ikunikeze ukwaneliseka okuphelele.

Okokusetshenziswa okukhethekile njengokulinganisa kwanoma iyiphi ingxenye yoxhumo lwe-Etekcity Auto-Ranging I-Clamp Meter, I-Digital Multimeter ene-Amp, Volt, Ohm, Diode umkhiqizo okufanele uwubheke. Futhi, uma umthamo wokulinganisa ubalulekile kuwe kunokubukeka ungaphezu kwe-Neoteck Auto-Ranging Digital Multimeter AC/DC Voltage Current Ohm Capacitance.

Yonke i-Multimeter evezwe ngenhla inomehluko omncane impela phakathi kwawo. Ngakho ekugcineni kuza kuwe ukuthi wenze ukukhetha. Ukubaluleka okuyinhloko okufanele ukunikeze uhlobo lomsebenzi ozobe uwenza nezici ezizoba wusizo kuwe. Ukuhlaziya izidingo zakho kuyisihluthulelo sokukhetha i-Multimeter ephezulu yabasebenza ngogesi.

Ngingu-Joost Nusselder, umsunguli we-Tools Doctor, umakethi wokuqukethwe, kanye nobaba. Ngiyakuthanda ukuzama okokusebenza okusha, futhi kanye nethimba lami ngidale izindatshana zebhulogi ezijulile kusukela ngo-2016 ukuze ngisize abafundi abathembekile ngamathuluzi namathiphu okwenza.