I-HVAC multimeter bekuyithuluzi elibalulekile lokuxazulula izinkinga isikhathi eside. Iyisisekelo sabasebenza ngogesi kanye nabanikazi bezindlu abathanda i-DIY. Lawa ma-multimeters abe yisikhungo sokunakwa isikhathi eside ngenxa yezinga lawa angakala ngalo ama-volts nama-amps.
Siqoqe ama-multimeter e-HVAC aphezulu anazo zonke izici ezinikezayo kanye nokubi. Umhlahlandlela wokuthenga uzokunikeza lonke ulwazi olufanele ozoludinga ukuze wahlulele izici ezinikezwa ngamamitha. Ukudlula esihlokweni ngokucophelela kuzokwenza isinqumo sakho nge-HVAC Multimeter engcono kakhulu sanelise.
Kulokhu okuthunyelwe sizomboza:
- Umhlahlandlela wokuthenga we-HVAC Multimeter
- I-HVAC Multimeters ehamba phambili ibuyekeziwe
- 1. I-Fluke 116/323 KIT HVAC Multimeter ne-Clamp Meter Combo Kit
- 2. I-Triplett Compact CAT II 1999 Bala i-Digital Multimeter
- 3. I-Klein Tools MM600 HVAC Multimeter, i-Digital Auto-Ranging Multimeter ye-AC/DC Voltage
- 4. I-Fieldpiece HS33 Enwebekayo I-Ranging Stick Multimeter ye-HVAC/R
- 5. I-UEI Test Instruments DL479 True RMS HVAC/R Clamp Meter
- Imibuzo Evame Ukubuzwa
- Iyiphi i-clamp meter engcono noma i-multimeter?
- Uyini umehluko phakathi kwe-voltmeter ne-multimeter?
- Isiphetho
Umhlahlandlela wokuthenga we-HVAC Multimeter
Udinga ukuqonda zonke izici ezihlukanisa ama-multimeter avamile nama-HVAC. Kuzoba nolwazi oluningi ongalucubungula ngenkathi ufunda izici ze i-Multimeter. Kodwa sihlukanise yonke imininingwane ukuze kube lula kuwe.
Yakha ikhwalithi
I-HVAC imele i-Heating, Ventilation and air conditioning. Lokhu kusho ukuthi wena kanye ne-Multimeter yakho nizokwenza imisebenzi eminingi yangaphandle. Ngakho-ke amaconsi angahlosiwe avame kakhulu ngenkathi usebenza.
Kungakho ikhwalithi yokwakha yama-multimeters e-HVAC kufanele iqine futhi iqine. Amakhona aneraba azonikeza amandla okumunca ukushaqeka kumitha. Futhi njengenjwayelo enziwe ngamapulasitiki e-ABS alawula imakethe ngokuqina kwawo.
Okulula
Uma unguchwepheshe, uzobe ubambelele ku-Multimeter njengeminyaka eyinkulungwane ebamba ucingo lwakhe. Izandla zakho zizoba buthakathaka ngenxa yokucindezeleka kwesisindo. Isici esihlangene nesilula siyadingeka kuma-multimeter e-HVAC.
Ngaphambi kokuya engxenyeni eyinhloko yezidingo, kufanele uqale ubone ukuthi umshini uzizwa ukhululekile yini ezandleni zakho. Amamitha aklanywe nge-ergonomically afanele ukusebenza kwezandla.
Ukunemba
Ukunemba kungenye yezici ezibalulekile ngenkathi usebenza namasistimu e-HVAC. Awukwazi ukuba nokuningi noma ngaphansi kwevelu oyifunayo njengoba izophazamisa ukusebenza kahle kwesistimu. Yonke inethiwekhi ingase ilethe izingozi ezisongela ukuphila ngenxa yokungalungi okuthile okuvela kumitha.
Izingxenye ezishibhile nokukhubazeka komkhiqizi ezinye zezizathu lapho ungase ungayitholi imiphumela enembile. Ngakho-ke ukutshala imali ezintweni zekhwalithi ephezulu kuyisihluthulelo sokufinyelela imiphumela enembe kakhulu.
Izici zokulinganisa
Ngenkathi ama-multimeters amaningi ekwazi ukufunda i-voltage-current & resistance, ama-multimeter e-HVAC adinga ukusebenza okuningi kunalokho. Le misebenzi ihlanganisa amandla, ukumelana, imvamisa, ukuqhubeka, izinga lokushisa nokuhlolwa kwe-diode. Noma iyiphi i-HVAC Multimeter kufanele ihlanganise isici esishiwo ngenhla njengoba uzosidinga ensimini.
Ukuphepha Isici
Ukusebenzisana nezinto zikagesi kungaba yingozi uma unganakile. Yingakho i-Multimeters iza nezici zokuphepha ukuze ukwazi ukusebenza ngokuphepha. Lezi zici zokuphepha zilebulwe njengamaleveli e-CAT. Ake sijwayelane namazinga. I-HVAC Multimeters iqala ngesilinganiso se-CAT III.
CAT I: Noma iyiphi i-multimeter eyisisekelo eshibhile inesitifiketi se-CAT I. Ungakwazi ukukala noma yimaphi amasekhethi alula, kodwa awukwazi ukuwuxhuma kugesi oyinhloko.
I-CAT II: Iyakwazi ukukala phakathi kuka-110V kuya ku-240 volts. Ungasebenzisa ama-multimeters ngalesi silinganiso cishe kunoma iyiphi isekethe ye-elekthronikhi. Laba bayakwazi ukukala kuze kufike ku-100A.
I-CAT III: Leli zinga lenzelwe ukuthi ochwepheshe bakwazi ukusebenzisa ama-breaker amakhulu. Izilinganiso zesitifiketi se-HVAC multimeters kufanele ziqale lapha. Amadivayisi axhunywe ngokuqondile kusistimu enkulu yesiqandisi angalinganiseka.
I-CAT IV: Lokhu okuphezulu kakhulu engakuthola kumazinga e-CAT. I-CAT IV ikhombisa ukuthi idivayisi iyakwazi ukusebenza ngemithombo yamandla eqondile. Uma i-multimeter inesilinganiso se-CAT IV ngaphandle kokungabaza ingenye ephephe kakhulu ukubhekana nohlelo lwe-HVAC.
Okuzenzakalelayo
Lesi isici esivumela imitha ukuthi ikunqumele ngokuzenzakalela ububanzi bamandla kagesi. Lokhu kukukongela isikhathi esiningi njengoba kungeke kudinge ukufakwa kokuthi ububanzi kufanele bube yini. Kodwa amanye amamodeli ashibhile anganikeza imiphumela engalungile ekulinganiseni okuzenzakalelayo.
Ukukhanyisa
Ngenkathi usebenza emkhakheni we-HVAC akukona okungavamile t ukusebenza ngaphandle kokukhanya kwasemini. Ngakho-ke ngaphandle kwesibonisi esikhanyiselwe emuva, ngeke ukwazi ukusebenza ngezikhathi nezimo ezinjalo. Ngokubuka kwethu, cishe kubalulekile kuwe ukuthi ubheke isici esikhanyiselwe emuva kuma-multimeter e-HVAC.
Iwaranti
Iwaranti emkhiqizweni izokunikeza ukwethenjwa komkhiqizi kanye nomkhiqizo. I-multimeter ingumshini kagesi wokulinganisa izilinganiso ezahlukene. Ngakho-ke ingase ibe nokukhubazeka okuthile noma ingase ingasebenzi kahle ngenkathi isebenza ngamagesi aphezulu/ama-voltage. Iwaranti ku-multimeter izokugcina uqinisekile.
Xhumana nomkhiqizi ukuze ubone ukuthi ikhona yini iwaranti kudivayisi oyithengayo.
I-HVAC Multimeters ehamba phambili ibuyekeziwe
Nawa amanye ama-HVAC Multimeter aphezulu anazo zonke izici nobubi bawo ahlelwe ngendlela ejabulisayo. Asigxume siye kubo.
1. I-Fluke 116/323 KIT HVAC Multimeter ne-Clamp Meter Combo Kit
Izimfanelo Okufanele Zicabangele
I-Fluke 116/323 iyithuluzi eliphelele lochwepheshe be-HVAC ngedizayini yayo yobuciko nezinhlelo zokusebenza. Imodeli 116 yakhelwe ngokukhethekile ukukala amazinga okushisa ku-80BK-A edidiyelwe ye-DMM probe & Micro amp ukuhlola izinzwa zomlilo zezinhlelo zokusebenza ze-HVAC. Izilinganiso zangempela ze-RMS nama-ergonomics athuthukisiwe enza amamodeli angu-316 afaneleke ngokufanelekile ochwepheshe bezogesi abajwayelekile.
Izibani ezinkulu ze-LED ezimhlophe ezinkulu zizokunikeza ukufunda okucacile ngisho nasezindaweni ezimnyama kakhulu. Womabili amamodeli ahlolelwa ukusetshenziswa okuphephile ezindaweni ze-CAT III 600 V. I-impedance ephansi isiza ukuvimbela noma yikuphi ukufunda okungamanga ngenxa ye-ghost voltages.
Lawa ma-multimeter angakala ama-400 Amps AC wamanje kanye no-600 AC no-DC voltage. Womabili amamodeli e-Fluke anesisindo esincane kodwa isakhiwo simangelengele futhi sivivinywa ezimeni ezinzima. Ikhithi iza ne-clamp meter yanoma yiluphi uhlobo lomsebenzi kagesi. Sekukonke le kit iyithuluzi eliphelele lokuba nenkampani enanoma yimuphi umsebenzi wezobuchwepheshe noma kagesi.
bawo
Kwesinye isikhathi amazinga okushisa e-Fluke awanembile. Kufanele uqaphele njengoba i-multimeter iqukethe izinzwa eziningi. Isibonisi siphinde sibe nezinkinga ezithile njengoba ukugqama kulahleka uma kubonakala ku-engeli ebanzi.
2. I-Triplett Compact CAT II 1999 Bala i-Digital Multimeter
Izimfanelo Okufanele Zicabangele
I-multimeter ehlangene ye-Triplett 1101 B inikeza abasebenzisi imisebenzi ehlukahlukene ehlanganisa i-AC/DC voltage ukuya ku-600V, izilinganiso zamanje ukuya ku-10A, izinga lokushisa ku-kelvin & transistor hFE test. Isibonisi sinezinombolo ezifundeka kalula ezingu-3-3/4, isibalo esingu-1900 esikhanyiselwe emuva. Kunenkinobho yokubamba idatha egcina isibonisi siqinile ukuze kuzuze wena.
Le modeli ihlolelwe ukusetshenziswa okuphephile ezindaweni ze-CAT III 600 V. Izici zokuvikela ezigcwala kakhulu zinikeza ukumelana okuphelele kunoma yiluphi uhlobo lomonakalo wephutha oweqile wedosi. Ine-rubberized boot ehlinzeka nge-multimeter enomthelela & ukumelana nokwehla.
Ukumelana komkhiqizo kusuka ku-2m kuya ku-200 ohms. Inkinobho yokuvala amandla ngokuzenzakalela isiza ekongeni amandla athile ebhethri. Iphakheji iza neziqeshana zengwenya, ibhethri le-9V, kanye ne-Type K bead probe.
bawo
I-Triplett isebenzisa amabhethri angu-9V esikhundleni samabhethri e-AA noma e-AAA angase abize kakhulu uma kudingeka ukuthi ashintshwe. Ukulinganisa okuzenzakalelayo nakho akutholakali kule divayisi.
3. I-Klein Tools MM600 HVAC Multimeter, i-Digital Auto-Ranging Multimeter ye-AC/DC Voltage
Izimfanelo Okufanele Zicabangele
Uma ufuna i-HVAC Multimeter enezilinganiso eziphakeme ongayikala, khona-ke le multimeter ye-Klein ingase ilungele wena. Inamandla okulinganisa kufika ku-1000V AC/DC voltage, izinga lokushisa, ukuhlolwa kwe-diode, ukuqhubeka, umjikelezo wemisebenzi & ukumelana no-40M. I-Klein MM600 ifaneleka ukusebenza kunoma iyiphi indawo ye-electromagnetic ekhaya, imboni noma izinjongo ezingokoqobo.
Ukuboniswa kwe-Klein kukhulu kakhulu ukuze noma ubani abone zonke izilinganiso ngokucacile kanye nesibani esingemuva ukuze sisebenze ezindaweni ezimnyama. Isibonisi sebhethri eliphansi sizokuxwayisa ukuthi ushintshe amabhethri njalo ngonyaka. Inendawo yokugcina ama-probe ngemuva.
Iyunithi ingakwazi ukumelana nokwehla kusuka cishe kumamitha angu-2. Ngokuhambisana nalokho, ihlinzeka ngesilinganiso sokuphepha se-CAT IV 600V noma i-CAT III 1000V ukuze ibe imbangi yama-multimeter aphezulu e-HVAC. Inokuvikelwa kwe-fuse kunoma yiziphi izimo ezigcwele kakhulu. I-Klein MM600 iyisinqumo esihle uma ucabanga multimeters professional enobubanzi obubanzi bokulinganisa imisinga ye-AC/DC.
bawo
Isikrini se-MM600 asilahlekelwa okuthile uma sibonwa kuma-engeli athile. Akunconywa futhi ukukala ngaphezulu kwama-Amps ayi-6 wamanje. Funda incwadi yeziqondiso ngokucophelela ngaphambi kokuyisebenzisa.
4. I-Fieldpiece HS33 Enwebekayo I-Ranging Stick Multimeter ye-HVAC/R
Izimfanelo Okufanele Zicabangele
I-Fieldpiece HS33 inomklamo ongajwayelekile kuneminye imiklamo yendabuko yamanye ama-multimeter e-HVAC. Amakhona anerabha azungeze idivayisi avumela ukuthi kulunge ngisho nokuwa ezandleni. Idivayisi ingakala kalula i-600A AC yamanje, i-voltage, ukumelana namandla anoma yimuphi umshini we-HVAC/R. Isilinganiso sokuphepha se-Cat-III 600V sinikezwa nemitha.
Ukwenza ukuhlolwa kwamandla kagesi ngaphandle kokuxhumana nomshini isici esivelele sale divayisi. Amaswishi e-rotary azungeze i-HS33 avumelana nezimo kakhulu futhi abushelelezi. Ukukalwa kobubanzi be-HS33 kusuka ku-VAC, VDC, AAC, ADC, izinga lokushisa, amandla (MFD) nezinye izici futhi.
Umumo we-ergonomic wemitha uzolingana kahle nangesandla esisodwa; ama-multimeter amaningi anzima ukuwabamba ngesandla esisodwa ngenxa yobubanzi. Isici sokubamba idatha sikuvumela ukuthi ulondoloze ukufundwa kokugcina ekusebenziseni kwakho uma kwenzeka udinga ukuqhathanisa imiphumela. Iyunithi yonke iza ne-clamp meter, imikhondo yokuhlola yama-silicone, ibhethri elingu-9V, izandiso zokuhola ingwenya nekesi lokuvikela.
bawo
Isici esidabukisa kakhulu sedivayisi enjalo evelele kufanele kube ukungabi khona kwesibonisi esingemuva. Ngeke ukwazi ukusebenzisa le mitha ezindaweni ezimnyama. Usayizi wokuboniswa nawo mncane, ngakho-ke uzoba nesikhathi esinzima ukuthatha ukufundwa.
5. I-UEI Test Instruments DL479 True RMS HVAC/R Clamp Meter
Izimfanelo Okufanele Zicabangele
I-UEI DL479 ingenye i-HVAC multimeter emise okwe-ergonomically nge-clamp meter ekhanda layo ukuze isebenze ngaphandle kwezandla. Iyakwazi ukukala ama-voltage angu-600A AC Yamanje, 750V AC/600V DC, ukumelana, ama-microamp, amandla, izinga lokushisa, imvamisa nokuhlolwa kwe-diode. Ukutholwa kwamandla kagesi okungeyena othintana naye kungenye yezici ezivelele eziwuhlukanisa kwezinye.
Iyunithi ikalwe nge-CAT IV 600V/CATIII 1000V ngaphansi kwe-IEC 61010-1 3rd edition. Iyakwazi ukubamba umphumela wangaphambilini kuyilapho ungawuqhathanisa nomphumela wamanje owuzuzile. I-UEI DL479 ikhanyiswe emuva, ngakho-ke ungakwazi ukusebenza endaweni emnyama ngaphandle kokuhlupheka.
Isibonisi se-voltage ezwakalayo sengeziwe ukuze uqonde kalula uma umshini usebenza ngokuqhubekayo nokukhanya okubomvu. Iyunithi yonke iza nama-Test lead, iziqeshana ze-w/alligator, isikhwama esiziphuwe namabhethri angu-2 AAA. Le mitha ingasetshenziswa kalula kumaza kalayini, amandla kagesi esistimu, ukuqhubeka kwesekethe kanye nokubona ukungasebenzi kahle kwe-diode.
bawo
Kuyo, isibonisi sokukhanyisa siphela ngokushesha kakhulu ukuze abasebenzisi basebenze. Izimo ezimbalwa zitholakala lapho ukuqhubeka kuma ngaphandle kokuwa noma ukuwa. Ukunemba kwedivayisi nakho bekulokhu kubuzwa.
Imibuzo Evame Ukubuzwa
Nayi eminye imibuzo ebuzwa njalo nezimpendulo zayo.
Iyiphi i-clamp meter engcono noma i-multimeter?
I-clamp meter yakhelwe ngokuyinhloko ukukala imanje (noma i-amperage), kuyilapho i-multimeter ivamise ukukala i-voltage, ukumelana, ukuqhubeka, futhi ngezinye izikhathi amandla aphansi. … Okubalulekile imitha ngocingo vs umehluko we-multimeter ukuthi angakwazi ukukala izinga eliphezulu lamanje, kuyilapho ama-multimeter anokunemba okuphezulu nokulungiswa okungcono.
Uyini umehluko phakathi kwe-voltmeter ne-multimeter?
Uma udinga ukukala amandla we-voltage, khona-ke wena i-voltmeter yanele, kepha uma ufuna ukukala amandla kagesi nezinye izinto ezinjengokumelana nokwamanje, kuzofanela uhambe ne-multimeter. Umehluko ophawuleka kakhulu kuwo womabili amadivayisi kuzoba ukuthi uthenga inguqulo yedijithali noma ye-analog.
Q: Ingabe ikhona i-Multimeter engasetshenziselwa ukuhlolwa kwe-HVAC?
I-Ans: Cha, akunjalo. Ukuhlolwa kwe-HVAC kungaba yingozi uma usebenzisa amathuluzi angalungile. Ama-multimeter e-HVAC aklanywe ngendlela yokuthi afanelekele kalula amasistimu e-HVAC. Ama-multimeter ajwayelekile abuye ashiye phansi izici eziningi okudingeka ukubhekana nazo ku-HVAC.
Q: Yini engcono kakhulu phakathi kwe-analog & digital multimeters?
I-Ans: Ama-multimeter edijithali, vele, azokunikeza ukunemba okuphezulu kunama-analog. Lezi zedijithali nazo zinesici esizishintshayo. Ngakho-ke kuzoba lula kuwe ukukala izimfanelo ezihlukene usebenzisa i-Digital Multimeter.
Q: Ingabe kukhona okulimazayo ekusebenziseni i-Multimeter?
I-Ans: Lokhu kuncike kuhlelo lokusebenza osebenza nalo. Uma usebenzisa i-Multimeter yasendlini embonini, lokhu kungase kuholele ezimweni ezimbi kakhulu. Ukufunda imiyalelo nemanuwali yomsebenzisi kubaluleke kakhulu ukuze uqonde ngokucacile izinhlelo zokusebenza namandla okulinganisa e-Multimeter.
Q: Iyini ukusetshenziswa kwe-Clamp?
I-Ans: Ama-clamps ngezinye izindlela zama-probe okala kuwo ngezintambo zokuthwala amaza amakhulu. imihlathi elengayo yemitha kagesi ivumela ochwepheshe ukuthi babambe imihlathi ocingweni noma balayishe kusistimu ye-HVAC bese bekala amandla amanje ngaphandle kokuyinqamula.
Isiphetho
Ukuncintisana emakethe kushubile njengoba bonke abakhiqizi bezama ukujabulisa amakhasimende abo ngazo zonke izici ezingenzeka. Silapha nombono wethu wochwepheshe ngalolu daba ukuze sikusize wenze isinqumo esiqinile.
I-Fluke 116/323 ingesinye sezinqumo ezifanele ongazikhetha uma umuntu ecabangela ikhithi yamamitha amaningi e-HVAC. UFluke uklame umshini wekhwalithi ephezulu ogcwele izici eziningi ezihlanganisa i-Ghost voltage, i-temperature probe. I-UEI DL479 ingenye i-multimeter eyodwa eboshwe ongayikhetha enezici ezimangalisayo.
Into engcono kakhulu kuwe ukuthi ucabangele izindlela zakho ngenkathi usebenza emasimini akho. Wonke ama-multimeter afakiwe anokusebenza okuvelele. Ngakho-ke udinga ukufanisa ukukhetha kwakho kwezici ukuze ukhethe ama-multimeter e-HVAC angcono kakhulu omsebenzi wakho.
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.
