HVAC multimeter tau yog cov cuab yeej tseem ceeb rau kev daws teeb meem ntev. Nws yog ib qho tseem ceeb rau cov hluav taws xob thiab DIY tus tswv tsev nyiam. Cov multimeters no tau ua qhov tseem ceeb ntawm kev saib xyuas ntev ntev vim tias cov no tuaj yeem ntsuas cov volts thiab amps.
Peb tau sau cov HVAC multimeters saum toj kawg nkaus nrog tag nrho cov yam ntxwv uas lawv muab nrog rau cov demerits. Daim ntawv qhia kev yuav yuav muab rau koj tag nrho cov ntaub ntawv tseem ceeb uas koj yuav tsum tau txiav txim siab cov yam ntxwv uas cov ntsuas muaj. Ua tib zoo mus rau hauv tsab xov xwm yuav ua rau koj txiav txim siab ntawm qhov zoo tshaj plaws HVAC Multimeter ntau txaus siab.
Hauv kab ntawv no peb yuav npog:
- HVAC Multimeter yuav khoom
- Qhov zoo tshaj plaws HVAC Multimeters tshuaj xyuas
- 1. Fluke 116/323 KIT HVAC Multimeter thiab Clamp Meter Combo Kit
- 2. Triplett Compact CAT II 1999 Suav Digital Multimeter
- 3. Klein cuab yeej MM600 HVAC Multimeter, Digital Auto-Ranging Multimeter rau AC / DC Voltage
- 4. Fieldpiece HS33 Expandable Manual Ranging Stick Multimeter rau HVAC/R
- 5. UEI Test Instruments DL479 True RMS HVAC/R Clamp Meter
- FAQ
- Qhov twg zoo dua clamp meter lossis multimeter?
- Qhov txawv ntawm voltmeter thiab multimeter yog dab tsi?
- xaus
HVAC Multimeter yuav khoom
Koj yuav tsum nkag siab tag nrho cov yam ntxwv uas sib txawv cov multimeters niaj hnub & HVAC sawv daws yuav. Yuav muaj ntau cov ntaub ntawv rau koj ua thaum nyeem cov yam ntxwv ntawm ib tug Multimeter. Tab sis peb tau rhuav tshem txhua yam kom koj yooj yim.
Ua Zoo
HVAC sawv cev rau cua sov, qhov cua thiab cua txias. Qhov no txhais tau tias koj & koj Multimeter yuav ua ntau yam kev ua ub no sab nraum zoov. Yog li kev tsis txhob xav tau ntau heev thaum ua haujlwm.
Tias yog vim li cas qhov tsim tau zoo ntawm HVAC multimeters yuav tsum muaj zog & ruaj khov. Rubberized fab yuav muab lub peev xwm nqus tau rau lub 'meter'. Thiab raws li ib txwm ua los ntawm ABS yas yog monopolizing kev lag luam nrog lawv cov kav ntev.
khaub-ncaws nyias
Yog tias koj yog tus kws tshaj lij, ces koj yuav tau tuav ntawm Multimeter zoo li ib txhiab xyoo tuav nws lub xov tooj. Koj txhais tes yog khi kom tsis muaj zog vim qhov hnyav ntawm qhov hnyav. Lub compact & lub teeb yuag feature yog ib qho yuav tsum tau rau HVAC multimeters.
Ua ntej yuav mus rau qhov tseem ceeb ntawm cov kev cai, koj yuav tsum xub saib seb lub tshuab puas xis nyob ntawm koj txhais tes. Ergonomically tsim meters yog haum rau tes ua haujlwm.
raug
Qhov tseeb yog ib qho tseem ceeb thaum ua haujlwm nrog HVAC systems. Koj tsis tuaj yeem muaj ntau lossis tsawg dua li qhov xav tau raws li nws yuav cuam tshuam qhov kev ua haujlwm ntawm lub system. Tag nrho ntawm lub network yuav ua rau muaj kev phom sij rau lub neej vim qee qhov tsis raug los ntawm qhov ntsuas.
Cheap Cheap Cheebtsam & chaw tsim tshuaj paus tsis xws luag yog tej yam uas tej zaum koj yuav tsis tau txais qhov tseeb. Yog li kev nqis peev hauv cov ntaub ntawv zoo yog tus yuam sij kom ncav cuag qhov tseeb dua.
Kev ntsuas nta
Thaum cov multimeters feem ntau tuaj yeem nyeem qhov voltage-tam sim no & tsis kam, HVAC multimeters yuav tsum muaj kev ua haujlwm ntau dua li qhov ntawd. Cov functionalities muaj xws li capacitance, kuj, zaus, continuity, kub & diode xeem. Txhua HVAC Multimeter yuav tsum them rau cov lus hais saum toj no raws li koj yuav xav tau lawv hauv daim teb.
Kev Nyab Xeeb Kev Nyab Xeeb
Kev soj ntsuam nrog cov khoom siv hluav taws xob tuaj yeem ua rau muaj kev phom sij yog tias koj tsis ceev faj. Tias yog vim li cas Multimeters tuaj nrog cov yam ntxwv kev nyab xeeb kom koj tuaj yeem muaj kev nyab xeeb. Cov yam ntxwv kev nyab xeeb no tau sau tias yog qib CAT. Cia peb paub txog cov qib. HVAC Multimeters pib nrog qhov ntsuas CAT III.
CAT kuv: Txhua tus nqi pheej yig multimeter muaj CAT I daim ntawv pov thawj. Koj tuaj yeem ntsuas txhua qhov yooj yim circuits, tab sis koj tsis tuaj yeem txuas nws mus rau lub zog loj.
CAT II: Nws muaj peev xwm ntsuas ntawm 110V txog 240 volts. Koj tuaj yeem siv multimeters nrog qhov ntsuas no rau yuav luag txhua qhov hluav taws xob hluav taws xob. Cov no muaj peev xwm ntsuas tau txog 100A.
KAB III: Qib no yog tsim los kom cov kws tshaj lij tuaj yeem ua haujlwm rau lub ntsiab breakers. HVAC multimeters certification ratings yuav tsum pib ntawm no. Cov cuab yeej txuas ncaj qha rau hauv lub tub yees tseem ceeb tuaj yeem ntsuas tau.
CAT IV: Qhov no yog qhov siab tshaj plaws nws yuav tau txais rau qib CAT. CAT IV qhia tias lub cuab yeej muaj peev xwm ua haujlwm nrog cov khoom siv hluav taws xob ncaj qha. Yog hais tias ib tug multimeter muaj ib tug CAT IV ntsuam xyuas ces nws yog tsis muaj ib tug tsis ntseeg ib tug ntawm qhov kev nyab xeeb tshaj plaws nrog rau HVAC system.
Nws pib-xws li
Qhov no yog qhov tshwj xeeb uas tso cai rau lub ntsuas ntsuas tau txiav txim siab qhov ntau ntawm qhov hluav taws xob rau koj. Qhov no txuag koj ntau lub sijhawm vim nws yuav tsis xav tau cov tswv yim raws li qhov ntau yuav tsum yog. Tab sis qee cov qauv pheej yig tuaj yeem muab cov txiaj ntsig tsis raug hauv kev pib-ntaus.
Backlight
Thaum ua haujlwm hauv thaj chaw ntawm HVAC nws tsis yog qhov txawv txav t ua haujlwm tsis muaj hnub ci. Yog li tsis muaj cov zaub backlit, koj yuav tsis tuaj yeem ua haujlwm thaum lub sijhawm thiab ib puag ncig zoo li no. Hauv peb qhov kev xav, nws yuav luag yog qhov tseem ceeb rau koj los saib rau qhov backlit feature hauv HVAC multimeters.
warranty
Lub warranty ntawm cov khoom yuav ua rau koj muaj kev ntseeg siab ntawm cov chaw tsim khoom thiab cov khoom. Multimeter yog lub tshuab hluav taws xob los ntsuas qhov sib txawv. Yog li nws yuav muaj qee qhov tsis xws lossis nws yuav ua haujlwm tsis zoo thaum ua haujlwm nrog cov hluav taws xob ntau dua / voltage. Lub warranty ntawm lub multimeter yuav ua rau koj paub tseeb.
Hu rau cov chaw tsim khoom kom pom tias muaj kev lav phib xaub ntawm lub cuab yeej koj tab tom yuav.
Qhov zoo tshaj plaws HVAC Multimeters tshuaj xyuas
Nov yog qee qhov saum toj kawg nkaus HVAC Multimeters nrog tag nrho lawv cov cwj pwm & cons teeb tsa hauv qhov zoo nkauj. Wb dhia txoj cai rau lawv.
1. Fluke 116/323 KIT HVAC Multimeter thiab Clamp Meter Combo Kit
Cov cwj pwm los xav txog
Fluke 116/323 yog cov cuab yeej zoo tshaj plaws rau HVAC cov kws tshaj lij rau nws lub xeev ntawm kev tsim qauv & kev siv. Qauv 116 yog tsim tshwj xeeb los ntsuas qhov kub thiab txias ntawm 80BK-A integrated DMM kub sojntsuam & Micro amp los ntsuas nplaim taws sensors rau HVAC daim ntaub ntawv. Qhov tseeb RMS ntsuas thiab optimized ergonomics ua 316 qauv zoo tagnrho rau cov hom phiaj dav dav dav siv hluav taws xob.
Loj dawb LED backlights yuav ua rau koj nyeem kom meej txawm nyob hauv qhov tsaus ntuj tshaj plaws. Ob qho qauv no raug sim rau kev siv nyab xeeb hauv CAT III 600 V ib puag ncig. Tsawg impedance pab tiv thaiv kev nyeem ntawv tsis tseeb vim dab voltages.
Cov multimeters tuaj yeem ntsuas 400 Amps AC tam sim no thiab 600 AC thiab DC voltage. Ob qho tib si Fluke qauv yog lub teeb yuag tab sis tus qauv yog rugged & kuaj hauv cov mob hnyav. Cov khoom siv los nrog lub ntsuas ntsuas clamp rau txhua yam kev ua haujlwm hluav taws xob. Zuag qhia tag nrho cov khoom siv no yog cov cuab yeej zoo tshaj plaws kom muaj lub tuam txhab nrog kev ua haujlwm lossis hluav taws xob.
cons
Qee zaum qhov ntsuas kub ntawm Fluke tsis raug. Koj yuav tsum tau ceev faj vim lub multimeter muaj ntau lub sensors. Cov zaub kuj muaj qee qhov teeb meem raws li qhov sib piv tau ploj yog tias nws pom los ntawm lub kaum ntse ntse.
2. Triplett Compact CAT II 1999 Suav Digital Multimeter
Cov cwj pwm los xav txog
Triplett 1101 B compact multimeter muab cov neeg siv nrog ntau yam haujlwm xws li AC / DC voltage rau 600V, kev ntsuas tam sim no rau 10A, qhov kub thiab txias hauv kelvin & transistor hFE xeem. Cov zaub muaj ib qho yooj yim nyeem 3-3/4 tus lej, 1900 suav backlit. Muaj cov ntaub ntawv tuav khawm kom cov zaub khov rau koj kom zoo dua.
Cov qauv no raug sim rau kev siv nyab xeeb hauv CAT III 600 V ib puag ncig. Overload tiv thaiv nta muab kev tiv thaiv tag nrho rau txhua yam kev puas tsuaj overdose. Nws muaj rubberized khau raj muab lub multimeter nrog kev cuam tshuam & poob tsis kam.
Kev ua haujlwm ntawm cov khoom yog los ntawm 2m mus rau 200 ohms. Nws pib lub hwj chim-tawm khawm pab txuag qee lub zog ntawm lub roj teeb. Cov pob no los nrog cov kab nuv ntses, 9V roj teeb, thiab Hom K hlaws sojntsuam.
cons
Triplett siv 9V roj teeb hloov AA lossis AAA roj teeb uas tuaj yeem kim me ntsis yog tias xav tau los hloov. Auto-ranging kuj tsis muaj rau cov cuab yeej no.
3. Klein cuab yeej MM600 HVAC Multimeter, Digital Auto-Ranging Multimeter rau AC / DC Voltage
Cov cwj pwm los xav txog
Yog tias koj tab tom nrhiav HVAC Multimeter nrog kev ntsuas siab dua los ntsuas, ces Klein multimeter no yuav zoo rau koj. Nws muaj peev xwm ntsuas txog 1000V AC / DC voltage, kub, diode xeem, txuas ntxiv, lub voj voog ua haujlwm & 40M tsis kam. Klein MM600 yog tsim los ua haujlwm nyob rau hauv ib puag ncig electromagnetic rau hauv tsev, kev lag luam lossis cov hom phiaj siv tau.
Cov zaub ntawm Klein yog qhov loj heev rau txhua tus neeg pom txhua qhov kev ntsuas kom meej nrog rau lub teeb rov qab los ua haujlwm hauv qhov tsaus ntuj. Qhov taw qhia roj teeb qis yuav ceeb toom koj kom hloov cov roj teeb txhua xyoo. Nws muaj qhov chaw khaws cov tshuaj ntsuam xyuas tom qab.
Chav tsev tuaj yeem tiv taus qhov poob ntawm yuav luag 2 meters. Nrog rau qhov ntawd, nws muab CAT IV 600V lossis CAT III 1000V kev ntsuas kev nyab xeeb los ua tus sib tw ntawm sab saum toj HVAC multimeters. Nws muaj kev tiv thaiv fuse rau txhua qhov teeb meem overload. Klein MM600 yog qhov kev xaiv zoo yog tias koj xav txog Professional multimeters nrog ntau yam ntsuas AC / DC tam sim no.
cons
Lub vijtsam ntawm MM600 poob qee qhov sib txawv yog tias pom los ntawm qee lub ces kaum. Nws kuj tsis pom zoo kom ntsuas ntau tshaj 6 Amps tam sim no. Ua tib zoo nyeem phau ntawv qhia ua ntej siv nws.
4. Fieldpiece HS33 Expandable Manual Ranging Stick Multimeter rau HVAC/R
Cov cwj pwm los xav txog
Fieldpiece HS33 muaj tus qauv tsim tsis zoo dua li lwm cov qauv tsim ntawm lwm HVAC multimeters. Rubberized fab nyob ib ncig ntawm lub cuab yeej tso cai rau nws ua tau zoo txawm tias poob ntawm tes. Cov cuab yeej siv tau yooj yim ntsuas 600A AC tam sim no, qhov hluav taws xob, tsis kam & capacitance rau txhua lub tshuab HVAC / R. Cat-III 600V kev ntsuas kev nyab xeeb kuj tau muab nrog lub ntsuas.
ua kev ntsuas hluav taws xob tsis ua kev sib cuag nrog lub tshuab yog qhov standout feature ntawm cov cuab yeej no. Cov kev hloov pauv hloov nyob ib puag ncig HS33 yog qhov hloov tau yooj yim & du. Kev ntsuas ntawm HS33 muaj xws li VAC, VDC, AAC, ADC, kub, capacitance (MFD) thiab lwm yam nta ib yam nkaus.
Cov duab ergonomic ntawm lub 'meter' yuav haum zoo txawm tias nrog ib txhais tes; Feem ntau cov multimeters yog tawv los tuav nrog ib txhais tes vim qhov dav. Cov ntaub ntawv tuav feature tso cai rau koj kom txuag tau qhov kev nyeem ntawv kawg los ntawm koj siv thaum koj xav tau los sib piv cov txiaj ntsig. Tag nrho chav tsev tuaj nrog lub ntsuas ntsuas, ntsuas cov khoom siv silicones, lub roj teeb ntawm 9V, alligator lead extensions & cov ntaub ntawv tiv thaiv.
cons
Qhov kev mob siab tshaj plaws ntawm cov cuab yeej zoo li no yuav tsum yog qhov tsis muaj cov zaub backlit. Koj yuav tsis muaj peev xwm khiav qhov ntsuas no hauv qhov chaw tsaus. Cov zaub loj kuj me me, yog li koj yuav muaj sij hawm nyuaj rau kev nyeem ntawv.
5. UEI Test Instruments DL479 True RMS HVAC/R Clamp Meter
Cov cwj pwm los xav txog
UEI DL479 yog lwm ergonomically zoo li tus HVAC multimeter nrog ib tug clamp meter ntawm nws lub taub hau rau kev ua haujlwm tsis muaj tes. Nws muaj peev xwm ntsuas 600A AC Tam sim no, 750V AC / 600V DC voltages, tsis kam, microamps, capacitance, kub, zaus & diode kuaj. Kev ntsuas qhov tsis sib cuag ntawm qhov hluav taws xob yog ib qho ntawm cov yam ntxwv tseem ceeb uas paub qhov txawv ntawm lwm tus.
Chav tsev tau ntsuas CAT IV 600V / CATIII 1000V raws li IEC 61010-1 3rd tsab. Nws muaj peev xwm tuav tau qhov tshwm sim dhau los thaum koj tuaj yeem sib piv nrog qhov txiaj ntsig tam sim no koj ua tiav. UEI DL479 yog backlit, yog li koj tuaj yeem ua haujlwm hauv qhov tsaus ntuj yam tsis muaj teeb meem.
Audible voltage qhov taw qhia tau ntxiv kom koj tuaj yeem nkag siab yooj yim yog tias lub tshuab ua haujlwm los ntawm lub suab nrov tas li & lub teeb liab dhau lawm. Tag nrho chav tsev tuaj nrog Test leads, w / alligator clips, Zippered hnab & 2 AAA roj teeb. Qhov ntsuas no tuaj yeem siv tau yooj yim rau cov kab hluav taws xob, qhov system voltage, circuit continuity & detecting diode malfunctions.
cons
Nyob rau hauv nws, cov zaub backlighting sij hawm tawm sai heev rau cov neeg siv ua haujlwm. Ob peb kis tau pom thaum qhov txuas ntxiv nres yam tsis muaj qhov poob lossis poob. Qhov tseeb ntawm lub cuab yeej kuj tau nug.
FAQ
Nov yog qee cov lus nug nquag nug thiab lawv cov lus teb.
Qhov twg zoo dua clamp meter lossis multimeter?
Lub ntsuas hluav taws xob feem ntau yog tsim los ntsuas tam sim no (lossis amperage), thaum lub tshuab hluav taws xob feem ntau ntsuas qhov hluav taws xob, tsis kam, txuas ntxiv, thiab qee zaum qis tam sim no. … Lub ntsiab clamp ntsuas vs multimeter sib txawv yog tias lawv tuaj yeem ntsuas qhov siab tam sim no, thaum multimeters muaj qhov tseeb dua thiab daws teeb meem zoo dua.
Qhov txawv ntawm voltmeter thiab multimeter yog dab tsi?
Yog tias koj yuav tsum ntsuas qhov ntsuas hluav taws xob, tom qab ntawd koj lub voltmeter txaus, tab sis yog tias koj xav ntsuas qhov ntsuas hluav taws xob thiab lwm yam xws li kev tiv thaiv thiab tam sim no, tom qab ntawd koj yuav tsum tau mus nrog lub multimeter. Qhov sib txawv tseem ceeb tshaj plaws ntawm ob lub cuab yeej yuav yog seb koj yuav cov digital lossis analog version.
Q: Puas muaj Multimeter siv tau rau HVAC kuaj?
Teb: Tsis yog, tsis yog kiag li. Kev kuaj HVAC tuaj yeem ua rau muaj kev phom sij yog tias koj siv cov cuab yeej tsis raug. HVAC multimeters yog tsim nyob rau hauv xws li ib txoj kev kom nws yooj yim haum HVAC systems. Ib txwm multimeters kuj lag ntau yam ntxwv uas yuav tsum tau ua nrog hauv HVAC.
Q: Dab tsi yog qhov zoo dua ntawm analog & digital multimeters?
Teb: Cov multimeters digital yuav, tau kawg, muab koj qhov raug siab dua li cov analogues. Cov digital no kuj muaj qhov pib-ntaus qhov tshwj xeeb. Yog li nws yuav yooj yim dua rau koj los ntsuas cov yam ntxwv sib txawv siv lub Digital Multimeter.
Q: Puas muaj teeb meem hauv kev siv Multimeter?
Teb: Qhov no nyob ntawm daim ntawv thov uas koj ua haujlwm nrog. Yog tias koj siv tsev neeg Multimeter hauv kev lag luam, qhov no yuav ua rau muaj xwm txheej loj. Kev nyeem cov lus qhia & cov neeg siv phau ntawv yog qhov tseem ceeb heev kom nkag siab meej txog cov ntawv thov & ntsuas lub peev xwm ntawm Multimeter.
Q: Kev siv Clamp yog dab tsi?
Teb: Clamps yog lwm txoj hauv kev rau kev sojntsuam uas koj ntsuas nrog nqa cov cables rau cov dej ntws loj dua. hinged puab tsaig ntawm lub ntsuas hluav taws xob tso cai rau cov kws tshaj lij txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm
xaus
Kev sib tw nyob ib ncig ntawm kev ua lag luam yog khaus raws li txhua tus neeg tsim khoom sim ua kom lawv cov neeg siv khoom txaus siab nrog txhua yam ua tau. Peb nyob ntawm no nrog peb cov kws tshaj lij kev xav txog qhov teeb meem los pab koj txiav txim siab ruaj khov.
Fluke 116/323 yog ib qho kev xaiv zoo tshaj plaws los ua yog tias ib tus xav txog HVAC multimeter cov khoom siv. Fluke tau tsim lub tshuab ua haujlwm zoo uas muaj ntau yam nta xws li Ghost voltage, ntsuas kub. UEI DL479 yog lwm qhov clamped multimeter koj tuaj yeem xaiv muaj cov yam ntxwv zoo ib yam.
Qhov zoo tshaj plaws rau koj yog xav txog koj cov txheej txheem thaum ua haujlwm hauv koj cov haujlwm. Txhua qhov tshwj xeeb multimeters muaj qhov ua tau zoo tshaj plaws. Yog li koj yuav tsum ua kom haum koj cov kev xaiv ntawm cov yam ntxwv los xaiv qhov zoo tshaj plaws HVAC multimeters rau koj txoj haujlwm.
Kuv yog Joost Nusselder, tus tsim ntawm Tools Doctor, cov ntsiab lus lag luam, thiab txiv. Kuv nyiam sim cov cuab yeej tshiab, thiab ua ke nrog kuv pab neeg kuv tau tsim cov ntawv blog tob txij li xyoo 2016 los pab cov neeg nyeem siab ncaj nrog cov cuab yeej & cov lus qhia ua khoom siv.
