Ungawavivinya Kanjani Amabhethri Enqola Yegalofu Usebenzisa I-Multimeter (Umhlahlandlela)

Okuqukethwe

Vula ukuhlolwa kwesekethe

Enye yezinkinga ezivame kakhulu zenqola yegalofu ukudonsa kwebhethri yenqola yegalofu. Kulo mhlahlandlela, sizokufundisa ukuthi ungasibheka kanjani futhi uma sidinga ukushintshwa.

Vula ukuhlolwa kwesekethe

Isinyathelo #1: Beka ukuphepha kuqala ukuze ugweme izigameko ezingafuneki

Ukuphepha kuqala yinto abantu abaningi abayifundiswa kusukela ebuntwaneni. Okufanayo kuyiqiniso uma kuziwa ekuhloleni amabhethri enqola yegalofu nge-multimeter. Kunezinyathelo ezimbalwa eziyisisekelo okufanele uzithathe ngaphambi kokuthi uqale. Lokhu kubandakanya:

Qiniseka ukuthi i-multimeter isethelwe ukuthi ifunde i-DC voltage.
Ungazithinti ama-probe ngqo kumatheminali ebhethri, njengoba lokhu kuzodala inhlansi futhi kubangele ukulimala.
Gqoka njalo izibuko zokuphepha namagilavu
Qiniseka ukuthi imoto ivaliwe, ibhuleki lokupaka livuliwe, futhi okhiye abasekho ekuthutheni.

Isinyathelo #2: Hlola ilungu lamandla ukuze ulihlole.

Isinyathelo esilandelayo ukuhlola ngokomzimba iseli lamandla ngaphansi kokuhlolwa nge-multimeter. Ukuhlolwa okubonakalayo kwebhethri kufanele kufake isheke lokuqhekeka noma izimbobo kukesi, ukulimala kwamatheminali, nokunye ukonakala okungase kuvele ngaphandle kwebhethri.

Uma kukhona imifantu noma imifantu ku-casing yangaphandle, lokhu kungase kube uphawu lokulimala kwangaphakathi futhi kuholele enkingeni enkulu kakhulu kamuva.

Isinyathelo #3 - Lungiselela ibhethri ukuze lihlolwe

Uma unebhethri okunzima ukulifinyelela noma okunzima ukulifinyelela, kungcono kakhulu ukwenza isiqiniseko sokuthi lishajwe ngokugcwele. Ibhethri elingashajwe ngokugcwele lizonikeza ukufundwa okungamanga futhi linikeze umbono wokuthi ibhethri iphansi uma ingekho.

Uma ucabanga ukuthi ibhethri ayidingi ukushajwa, hlola izinga lokushajwa kwayo nge i-hydrometer, ezokutshela ukuthi ungakanani umthamo wayo otholakalayo.

Uma i-hydrometer ibonisa ukuthi ngaphansi kuka-50% wesamba esiphelele esisele, kufanele uyikhokhise ngaphambi kokuqhubeka nokuhlola.

Isinyathelo #4. Ukufundwa okunembile kungatholwa ngokusetha kahle idivayisi.

Ukuze uthole ukufundwa komthamo webhethri okunembile, udinga kuqala ukusetha i-multimeter yakho ukuze ulinganise amandla kagesi e-DC. Lokhu kungenziwa ngokukhetha isilungiselelo esifanele ebusweni bewashi bedivayisi. Ngemva kokusetha, xhuma izintambo kumatheminali ebhethri. Ukuhola okuhle kufanele kuxhunywe ekuholeni okuhle futhi ngokuphambene nalokho.

Bese ubheka iwindi lokubonisa le-multimeter ukuze ubone ukuthi yikuphi ukufundwa okubonisiwe. Inani elingu-12.6V noma ngaphezulu libonisa ibhethri eligcwele amandla, kuyilapho inani elingu-12.4V noma elingaphansi libonisa ibhethri elifile.

Uma kuphawulwa inani elingaphansi kunokuvamile, zama ukushaja ibhethri amahora angu-24 bese uphinde ulihlole nge-multimeter ukuze ubone ukuthi lokhu kubuyisela i-voltage futhi.

Isinyathelo #5 - Xhuma imikhondo yokuhlola ebhethrini

Kuleli qophelo, uzoqinisekisa ukuthi ama-probe amabili edivayisi yakho axhumeke kahle ebhethrini. Udinga ukuxhuma umthofu wokuhlola obomvu kutheminali ephozithivu bese isivivinyo esimnyama siholele kutheminali enegethivu. Itheminali ephozithivu iboniswa ngophawu oluthi "+", kanti itheminali enegethivu iboniswa ngophawu "-" noma uphawu "-". Ungakwazi futhi ukuzibona ngombala wazo; umbala obomvu ukhombisa umphumela omuhle futhi omnyama ukhombisa umphumela ongemuhle.

Udinga ukusebenzisa iziqeshana zengwenya ukuze uxhume idivayisi yakho kumatheminali ebhethri. Uma ungenazo iziqeshana zengwenya, ungasebenzisa ama-jumper amancane ukuxhuma idivayisi kumatheminali ebhethri. Kodwa-ke, kuyanconywa ukusebenzisa iziqeshana zengwenya ukuxhuma idivayisi yakho kumatheminali ebhethri njengoba kulula kakhulu futhi ayinamaphutha amancane. (1)

Isinyathelo #6 - Ukuhlola ibhethri, yibeke ngaphansi komthwalo omncane

Ukuze uthole ukufundwa kwe-multimeter, udinga ukubeka umthwalo ebhethri. Lokhu kungafezwa ngokukhanyisa amalambu enqola yegalofu. Ngensimbi esethelwe ku-voltage engaguquki kanye nentambo enegethivu ixhunyiwe, thinta intambo ephozithivu ngesinye isandla sakho. I-voltage kufanele ibe phakathi kuka-6-8 volts. Uma kungenjalo, ibhethri ingase idinge ukushajwa kabusha noma ukushintshwa. (2)

Uma amabhethri akho exhunywe ochungechungeni (iphozithivu yebhethri eyodwa ixhunywe ngokuqondile kunegethivu yelinye), kuzodingeka wenze lokhu kubhethri ngalinye. Uma axhumeke ngokuhambisana (wonke ama-pluses ndawonye nawo wonke amaminithi ahlangene), ungahlola noma yiliphi ibhethri elilodwa.

Bheka ezinye zezihloko zethu ngezansi.