Eyona iMultimeter yeHVAC | Uxilongo lweesekethe zakho

I-multimeter ye-HVAC ibe sisixhobo esisisiseko sokusombulula ingxaki ixesha elide. Yeyona nto iphambili kubasebenzi bombane kunye nabaninimzi abathanda i-DIY. Ezi multimeters ziye zaba liziko lokuqwalaselwa ixesha elide ngenxa yokuba ezi zinokulinganisa ii-volts kunye ne-amps.

Siqokelele ii-multimeters eziphezulu ze-HVAC nazo zonke iimpawu abazinikezelayo kunye nokungahambi kakuhle. Isikhokelo sokuthenga siya kukunika lonke ulwazi olufanelekileyo oluya kulufuna ukugweba iimpawu ezinikezela ngeemitha. Ukuhamba ngenqaku ngononophelo kuya kusenza isigqibo sakho malunga neHVAC yeMultimeter ilungileyo yanelisa ngakumbi.

Isikhokelo sokuthenga seHVAC Multimeter

Kuya kufuneka uqonde zonke iimpawu ezahlula ii-multimeters eziqhelekileyo kunye ne-HVAC. Kuya kubakho ulwazi oluninzi onokuthi uluqhube ngelixa ufunda iimpawu ze iMultimeter. Kodwa sicazulule zonke iinkcukacha ukulungiselela wena.

Yakha umgangatho

I-HVAC imele i-Heating, i-Ventilation kunye ne-air conditioning. Oku kuthetha ukuba wena kunye neMultimeter yakho niza kwenza imisebenzi emininzi yangaphandle. Ke amathontsi angeyonjongo aqheleke kakhulu ngelixa usebenza.

Yiyo loo nto umgangatho wokwakha we-HVAC multimeter kufuneka womelele kwaye womelele. Iikona zeRubberized ziya kunika amandla okufunxa ukothuka kwimitha. Kwaye njengesiqhelo ezo zenziwe ngeeplastiki ze-ABS zilawula imarike ngokuqina kwazo.

KDEName

Ukuba uligcisa, ke uya kubambelela kwiMultimeter njengeminyaka eliwaka ebambe ifowuni yakhe. Izandla zakho zibophelelekile ukuba zibe buthathaka ngenxa yoxinzelelo lobunzima. I-compact & lightweight feature iyimfuneko kwii-multimeters ze-HVAC.

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Ngaphambi kokuba uye kwindawo ephambili yeemfuno, kufuneka uqale ubone ukuba umatshini uziva ukhululekile ezandleni zakho. Iimitha eziyilwe nge-ergonomically zilungele ukusebenza kwezandla.

ukuchaneka

Ukuchaneka ngomnye wemiba ephambili ngelixa usebenza neenkqubo zeHVAC. Awukwazi ukuba ngaphezulu okanye ngaphantsi kwexabiso elifunekayo njengoko liya kuphazamisa ukusebenza kakuhle kwenkqubo. Uthungelwano lulonke lunokuzisa iingozi ezibeka ubomi esichengeni ngenxa yokungachaneki okuthile okuvela kwimitha.

Amacandelo atshiphu kunye neziphene zomenzi zezinye zezizathu apho usenokungazifumani iziphumo ezichanekileyo. Ke utyalo-mali kwizinto ezikumgangatho ophezulu ngundoqo wokufikelela kwiziphumo ezichanekileyo.

Iimpawu zomlinganiselo

Ngelixa uninzi lwee-multimeters zinokufunda i-voltage-yangoku kunye nokuchasana, ii-multimeters ze-HVAC kufuneka zibe nokusebenza okuninzi kunoko. Ezi zixhobo zibandakanya amandla, ukuxhathisa, ukuphindaphinda, ukuqhubeka, ubushushu kunye novavanyo lwe-diode. Nayiphi na i-Multimeter ye-HVAC kufuneka igubungele into ekhankanywe ngasentla njengoko uya kuyidinga ebaleni.

Uphawu loKhuseleko

Ukujongana nezixhobo zombane kunokuba yingozi ukuba awulumkanga. Yingakho i-Multimeters iza neempawu zokhuseleko ukuze ube nokusebenza ngokukhuselekileyo. Ezi mpawu zokhuseleko zibhalwe njengamanqanaba eCAT. Masiqhelane namanqanaba. I-HVAC Multimeters iqala nge-CAT III yokukala.

CAT I: Nayiphi na i-multimeter esisiseko enexabiso eliphantsi inesatifikethi se-CAT I. Unokulinganisa naziphi na iisekethe ezilula, kodwa awukwazi ukudibanisa nombane oyintloko.

CAT II: Iyakwazi ukulinganisa phakathi kwe-110V ukuya kwi-240 volts. Ungasebenzisa ii-multimeters ngolu luhlu malunga nayo nayiphi na isekethe ye-elektroniki. Aba bayakwazi ukulinganisa ukuya kwi-100A.

CAT III: Eli nqanaba lenzelwe ukuba amagcisa akwazi ukusebenzisa awona maqhekeza aphambili. Ukalo lwezatifiketi ze-HVAC multimeters kufuneka luqale apha. Izixhobo ezifakwe ngokuthe ngqo kwinkqubo ephambili yefriji zinokulinganiswa.

CAT IV: Eli lelona liphezulu inokulifumana kumanqanaba eCAT. I-CAT IV ibonisa ukuba isixhobo siyakwazi ukusebenza ngemithombo yombane ngokuthe ngqo. Ukuba i-multimeter ine-CAT IV rating ke ngaphandle kwamathandabuzo enye yeyona ndlela ikhuselekileyo yokujongana nenkqubo ye-HVAC.

Ukujikeleza ngokuzenzekelayo

Eli lilungu elivumela imitha ukuba imisele ngokuzenzekelayo uluhlu lwamandla ombane kuwe. Oku kongela ixesha elininzi njengoko kungayi kufuna igalelo malunga nokuba kufanele ukuba yintoni na uluhlu. Kodwa ezinye iimodeli ezincinci zinokunika iziphumo ezingachanekanga kuluhlu oluzenzekelayo.

Umbulelo

Ngelixa usebenza kwintsimi ye-HVAC ayiqhelekanga ukuba kungabikho kukhanya kwemini. Ke ngaphandle kwesibonisi esikhanyayo, awuyi kukwazi ukusebenza ngamaxesha anje kunye neemeko. Ngokombono wethu, phantse kubaluleke kakhulu ukuba ujonge into ekhanyiswe ngasemva kwii-multimeters ze-HVAC.

iwaranti

Iwaranti kwimveliso iya kukunika ukuthembeka kumvelisi kunye nemveliso. I-multimeter ngumatshini wombane wokulinganisa iireyithingi ezahlukeneyo. Ke inokuba neziphene okanye ingasebenzi kakuhle ngelixa isebenza ngokuphezulu kwangoku/iivolthi. Iwaranti kwi-multimeter iya kukugcina uqinisekile.

Qhagamshelana nomenzi ukuze ubone ukuba kukho nasiphi na iwaranti kwisixhobo osithengayo.

IiMultimitha zeHVAC ezigqwesileyo zijongiwe

Nazi ezinye zeeMultimeters eziphezulu ze-HVAC nazo zonke iimpawu zabo & nobubi obulungelelaniswe ngendlela emnandi. Masitsibele ngqo kubo.

1. Fluke 116/323 KIT HVAC Multimeter kunye neClamp Meter Combo Kit

Iimpawu ekufuneka Ziqwalaselwe

I-Fluke 116/323 sisixhobo esigqibeleleyo samagcisa e-HVAC kubume bayo boyilo lobugcisa kunye nokusetyenziswa. Imodeli ye-116 yenzelwe ngokukodwa ukulinganisa amaqondo obushushu kwi-80BK-A idityanisiweyo ye-DMM probe kunye ne-Micro amp ukuvavanya izinzwa zedangatye kwizicelo ze-HVAC. Imilinganiselo yokwenyani ye-RMS kunye ne-ergonomics ephuculweyo yenza iimodeli ezingama-316 zilungele injongo jikelele yabasebenzi bombane.

Izibane ezinkulu ezimhlophe ze-LED ziya kukunika ukufunda okucacileyo nakwezona ndawo zimnyama. Zomibini iimodeli zivavanyelwa ukusetyenziswa ngokukhuselekileyo kwi-CAT III 600 V engqongileyo. I-impedance ephantsi inceda ukuthintela nakuphi na ukufunda okungeyonyani ngenxa yombane womoya.

Ezi multimeters zinokulinganisa i-400 Amps AC yangoku kunye ne-600 AC kunye ne-DC voltage. Zombini iimodeli zeFluke zikhaphukhaphu kodwa ulwakhiwo luqinile kwaye luvavanyiwe kwiimeko ezinzima. Ikhithi iza ne-clamp meter yalo naluphi na uhlobo lomsebenzi wombane. Lilonke le kit sisixhobo ogqibeleleyo ukuba inkampani kunye nawuphi na umsebenzi zobugcisa okanye zombane.

neengozi

Ngamanye amaxesha ufundo lobushushu beFluke aluchanekanga. Kuya kufuneka ulumke njengoko i-multimeter inezinzwa ezininzi. Isiboniso sikwanazo iingxaki njengoko umahluko ulahlekile ukuba ubonwa kwi-engile ebanzi.

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2. I-Triplett Compact CAT II 1999 Bala i-Digital Multimeter

Iimpawu ekufuneka Ziqwalaselwe

I-multimeter ye-compact ye-Triplett 1101 B inikezela abasebenzisi ngemisebenzi eyahlukeneyo equka i-AC / DC i-voltage ukuya kwi-600V, ukulinganiswa kwangoku kwi-10A, iqondo lokushisa kwi-kelvin & transistor hFE test. Isiboniso sinokufundeka lula 3-3/4 idijithi, 1900 count backlit. Kukho iqhosha lokubamba idatha egcina isiboniso singumkhenkce ukwenzela inzuzo yakho.

Lo mzekelo uvavanyelwa ukusetyenziswa ngokukhuselekileyo kwi-CAT III 600 V engqongileyo. Iimpawu zokukhusela ezigqithisiweyo zinika ukuxhathisa ngokupheleleyo kulo naluphi na uhlobo lomonakalo owenziwe ngengozi wokugqithiswa kwedosi. Ine-rubberized boot ebonelela ngemultimeter ngempembelelo kunye nokuchasana nokulahla.

Ukuchasana kwemveliso ukusuka kwi-2m ukuya kwi-200 ohms. Iqhosha lokucima umbane ngokuzenzekela linceda ekugcineni amandla athile ebhetri. Iphakheji iza neziqeshana ze-alligator, ibhetri ye-9V, kunye ne-Type K bead probe.

neengozi

I-Triplett isebenzisa iibhetri ze-9V endaweni ye-AA okanye i-AAA yeebhetri ezinokuza zibiza kakhulu xa zifunwa ukutshintshwa. Uluhlu oluzenzekelayo nalo alufumaneki kwesi sixhobo.

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3. Klein Tools MM600 HVAC Multimeter, Digital Auto-Ranging Multimeter for AC/DC Voltage

Iimpawu ekufuneka Ziqwalaselwe

Ukuba ujonge i-HVAC Multimeter enemilinganiselo ephezulu yokulinganisa, ke le multimeter ye-Klein inokuba igqibelele kuwe. Inamandla okulinganisa ukuya kuthi ga kwi-1000V AC / DC yombane, ubushushu, uvavanyo lwe-diode, ukuqhubeka, umjikelo womsebenzi kunye ne-40M ukumelana. I-Klein MM600 ifanelekile ukusebenza kuyo nayiphi na imeko ye-electromagnetic yasekhaya, ishishini okanye iinjongo eziphathekayo.

Umboniso weKlein mkhulu kakhulu kuye nabani na ukuba abone yonke imilinganiselo ngokucacileyo kunye nesibane esingasemva ukuze sisebenze kwiindawo ezimnyama. Isalathisi sebhetri esezantsi siya kukulumkisa ukuba utshintshe iibhetri ngonyaka. Inendawo yokugcina iiprobe ngasemva.

Iyunithi inokumelana nokuhla malunga neemitha ezi-2. Ngaloo nto, inika i-CAT IV 600V okanye i-CAT III 1000V yokhuseleko lokulinganisa ukuba ube ngumchasi we-multimeters ephezulu ye-HVAC. Inokhuseleko lwefuse kuzo naziphi na iimeko zokugcwala kakhulu. I-Klein MM600 lukhetho olukhulu ukuba ucinga multimeters yobungcali ngoluhlu olubanzi lokulinganisa imisinga ye-AC/DC.

neengozi

Isikrini seMM600 silahlekelwa ngumahluko othile xa sibonwa kwii-engile ezithile. Kananjalo akukhuthazwa ukulinganisa ngaphezu kwe-6 Amps yangoku. Funda incwadi yemiyalelo ngononophelo phambi kokuba uyisebenzise.

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4. I-Fieldpiece HS33 Manual eYandiswayo iStick Stick Multimeter ye-HVAC/R

Iimpawu ekufuneka Ziqwalaselwe

I-Fieldpiece HS33 inoyilo olungaqhelekanga kunolunye uyilo lwemveli lwezinye ii-multimeter ze-HVAC. Iikona ezinerabha ezijikeleze isixhobo zivumela ukuba kulunge nokuba kuwiswe ezandleni. Isixhobo sinokulinganisa ngokulula i-600A AC yangoku, i-voltage, ukuxhathisa kunye nomthamo wayo nayiphi na i-HVAC / R umatshini. I-Cat-III 600V ireyithingi yokhuseleko nayo ibonelelwe ngemitha.

Ukwenza uvavanyo lombane ngaphandle kokunxibelelana nomatshini luphawu olubalaseleyo lwesi sixhobo. Iiswitshi ezijikelezayo ezijikeleze iHS33 zibhetyebhetye kakhulu kwaye zigudile. Ukulinganiswa koluhlu lweHS33 ukusuka kwiVAC, VDC, AAC, ADC, ubushushu, amandla (MFD) kunye nezinye izinto.

Ubume be-ergonomic bemitha iya kulunga kakhulu nangesandla esinye; ezininzi ii-multimeters zinzima ukuzibamba ngesandla esinye ngenxa yobubanzi. Indawo yokubamba idatha ikuvumela ukuba ugcine ukufundwa kokugqibela kusetyenziso lwakho xa ufuna ukuthelekisa iziphumo. Iyunithi yonke iza ne-clamp meter, i-test lead for silicones, ibhetri ye-9V, i-alligator lead extensions kunye necala lokukhusela.

neengozi

Eyona nto ibuhlungu kakhulu kweso sixhobo sibalaseleyo kuya kufuneka kukungabikho kwesiboniso se-backlit. Awuyi kukwazi ukusebenzisa le mitha kwiindawo ezimnyama. Ubungakanani bokuboniswa buncinci, ngoko uya kuba nobunzima bokuthatha ukufundwa.

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5. UEI Test Instruments DL479 True RMS HVAC/R Clamp Meter

Iimpawu ekufuneka Ziqwalaselwe

I-UEI DL479 yenye i-ergonomically shaped HVAC multimeter ngemitha yokulinganisa entlokweni yayo yokusebenza ngaphandle kwezandla. Iyakwazi ukulinganisa i-600A AC yangoku, i-750V AC / 600V DC yombane, ukuxhathisa, ii-microamps, amandla, ubushushu, i-frequency & test diode. Ukufunyanwa kombane ongaqhagamshelwanga yenye yeempawu ezibalaseleyo ezahlulayo kwezinye.

Iyunithi inikwe i-CAT IV 600V / CATIII 1000V phantsi kwe-IEC 61010-1 3rd edition. Iyakwazi ukubamba isiphumo sangaphambili ngelixa unokusithelekisa nesiphumo sangoku osifumeneyo. I-UEI DL479 ilayitiwe ngasemva, ngoko unokusebenza kwindawo emnyama ngaphandle kobunzima.

Isalathisi sombane esivakalayo songeziwe ukuze uqonde ngokulula ukuba umatshini usebenza nge-buzz eqhubekayo kunye nokukhanya okubomvu nako. Iyonke iyunithi iza kunye novavanyo lovavanyo, iikliphu ze-w/alligator, isingxobo esineZippered & 2 AAA Battery. Le mitha inokusetyenziswa ngokulula kwimisinga yomgca, umbane wenkqubo, ukuqhubeka kwesekethe kunye nokufumanisa ukungasebenzi kakuhle kwediode.

neengozi

Kuyo, umboniso wokukhanyisa umva uphuma ngokukhawuleza ukuba abasebenzisi basebenze. Iimeko ezimbalwa zifunyenwe xa ukuqhubeka kumisa ngaphandle kokuwa okanye ukuhla. Ukuchaneka kwesixhobo kuye kwabuzwa.

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FAQ

Nayi eminye imibuzo ebuzwa rhoqo kunye neempendulo zayo.

Yeyiphi engcono imitha uqinisa okanye multimeter?

Imitha yokulinganisa yenzelwe ukulinganisa yangoku (okanye i-amperage), ngelixa i-multimeter ilinganisa i-voltage, ukumelana, ukuqhubeka, kwaye ngamanye amaxesha iphantsi ngoku. … Eyona imitha uqinisa vs Umahluko wemultimeter kukuba banokulinganisa umsinga ophezulu, ngelixa ii-multimeters zinokuchaneka okuphezulu kunye nesisombululo esingcono.

Nguwuphi umahluko phakathi kwe-voltmeter kunye ne-multimeter?

Ukuba ufuna ukulinganisa umbane, ke wena i-voltmeter yanele, kodwa ukuba ufuna ukulinganisa i-voltage kunye nezinye izinto ezinje ngokuxhathisa nakwangoku, kuya kufuneka uhambe nemultimeter. Umahluko obaluleke kakhulu kuzo zombini izixhobo uya kuba uyayithenga inguqulelo yedijithali okanye ye-analog.

Q: Ngaba nayiphi na i-Multimeter ingasetyenziselwa uvavanyo lwe-HVAC?

Iimpendulo: Hayi, akunjalo. Uvavanyo lwe-HVAC lunokuba yingozi ukuba usebenzisa izixhobo ezingalunganga. Ii-multimeters ze-HVAC ziyilwe ngendlela yokuba ikwazi ukulungela lula iinkqubo zeHVAC. Ii-multimeters eziqhelekileyo zikwabeka izinto ezininzi ekufuneka zijongane nazo kwi-HVAC.

Q: Yintoni ekhethwa ngakumbi phakathi kwe-analog kunye ne-digital multimeters?

Iimpendulo: Ii-multimeters zedijithali, ngokuqinisekileyo, ziya kukunika ukuchaneka okuphezulu kune-analog. Ezi zedijithali zikwanalo nesici sokulinganisa okuzenzekelayo. Ngoko kuya kuba lula kuwe ukulinganisa iimpawu ezahlukeneyo usebenzisa i-Digital Multimeter.

Q: Ngaba kukho nayiphi na ingozi ekusebenziseni i-Multimeter?

Iimpendulo: Oku kuxhomekeke kwisicelo osebenza ngaso. Ukuba usebenzisa iMultimeter yasekhaya kwishishini, ke oku kunokukhokelela kwiimeko ezimandundu. Ukufunda imiyalelo kunye nencwadana yomsebenzisi kubaluleke kakhulu ukuqonda ngokucacileyo usetyenziso kunye nobuchule bokulinganisa beMultimeter.

Q: Yintoni ukusetyenziswa kweKlampu?

Iimpendulo: Izinto ezibambekayo zezinye zeendlela zokuphanda ometa kuzo ngeentambo ezithwele imisinga emikhulu. imihlathi ehinjisiwe yemitha yombane ivumela amagcisa ukuba abambe imihlathi ejikeleze ucingo okanye ukulayisha kwisixokelelwano se-HVAC kwaye emva koko alinganise umsinga ngaphandle kokuwuqhawula.

isiphelo

Ukhuphiswano olujikeleze imarike lubukhali njengoko bonke abavelisi bezama ukukholisa abathengi babo ngazo zonke iimpawu ezinokwenzeka. Silapha kunye noluvo lwethu lweengcali kulo mba ukuze sikuncede wenze isigqibo esiqinileyo.

I-Fluke 116/323 yenye yokhetho olufanelekileyo onokuthi ulwenze ukuba ubani uqwalasela ikiti ye-multimeter ye-HVAC. UFluke uyile umatshini okumgangatho ophezulu opakishwe ngezinto ezininzi ezibandakanya i-Ghost voltage, iprobe yobushushu. I-UEI DL479 yenye i-multimeter edibeneyo onokuthi ukhethe ukuba neempawu ezimangalisayo.

Eyona nto ilungileyo kuwe kukuqwalasela imilinganiselo yakho ngelixa usebenza emasimini akho. Zonke ii-multimeters ezibonakalisiweyo zinentsebenzo ebalaseleyo. Ke kufuneka utshatise ukhetho lwakho lweempawu ukukhetha ezona multimeters zeHVAC zomsebenzi wakho.

NdinguJoost Nusselder, umseki weZixhobo zeGqirha, umthengisi womxholo, kunye notata. Ndiyathanda ukuzama izixhobo ezitsha, kwaye kunye neqela lam ndiye ndenza amanqaku ebhlog anzulu ukusukela ngo-2016 ukunceda abafundi abathembekileyo ngezixhobo kunye neengcebiso zokwenza.