Sida loo akhriyo Qiimaynta Multimeter ee CAT: Fahamka iyo Isticmaalka si loo tijaabiyo Voltage ugu badan
Tusmo
Multimeter-yada iyo qalabka kale ee tijaabada korantada ayaa inta badan loo qoondeeyaa qiimeynta qaybta. Tani waa in la siiyo isticmaalaha fikradda tamarta ugu badan ee qalabku si ammaan ah u cabbiri karo. Qiimayntan waxa loo soo bandhigay CAT I, CAT II, CAT III, ama CAT IV. Qiimayn kastaa waxay tusinaysaa danabka badbaadada ugu sarreeya ee la cabbirayo.
Waa maxay qiimeynta CAT ee multimeterka?
Qiimaynta Qaybta (CAT) waa nidaam ay isticmaalaan soosaarayaashu si ay u go'aamiyaan heerka ilaalinta ay bixiyaan qalabka korantada marka la cabbirayo korantada. Qiimayntu waxay u dhaxaysaa CAT I ilaa CAT IV iyadoo ku xidhan nooca danabka la cabbirayo.
Goorma ayaan isticmaali karaa mitir qayb ka duwan? Jawaabtu waxay ku xidhan tahay shaqada la qabanayo.
Multimeter-ka waxaa caadi ahaan loo isticmaalaa codsiyada tamarta dhexe iyo kuwa hooseeya. Tusaale ahaan, cabbiridda meel bannaan ama tijaabinta nalka. Xaaladahan, mitirka CAT I ama CAT II waxay u badan tahay inay ku filnaan doonaan. Si kastaba ha ahaatee, marka aad ka shaqaynayso deegaan koronto sare leh, sida guddi-wareega wareegga, waxa laga yaabaa inaad u baahato ilaalin dheeraad ah oo ka badan waxa mitirka caadiga ahi uu bixin karo. Halkan waxa aad ka fikiri kartaa isticmaalka multimeter-ka cusub, oo sare loo qaaday.
Qaybaha kala duwan iyo qeexitaankooda
Markaad isku dayeyso inaad cabbirto culeyska, waxaa jira 4 heerar cabbir oo la aqbalay.
CAT I: Tan waxaa caadi ahaan loo adeegsadaa wareegyada cabbiraadda kuwaas oo si toos ah ugu xidhan nidaamka fiilooyinka korantada ee dhismaha. Tusaalooyinka waxaa ka mid ah waxyaabaha aan hadda qaadin sida nalalka, furayaasha, furayaasha wareegga, iwm
XARAFKA XNUMX: Qaybtan waxa loo isticmaalaa meelaha ay ku-meel-gaadhka ahi wax yar ka sarreeyaan tamarta caadiga ah. Tusaalooyinka waxaa ka mid ah saldhigyada, furayaasha, sanduuqyada isgoysyada, iwm. shoog koronto uma badna ama lagama yaabo inuu ka dhaco deegaannadan
CAT III: Qaybtan waxa loo isticmaalaa cabbiraadaha lagu qaado meel u dhow isha korontada, sida muraayadaha tamarta iyo sabuuradaha ee dhismayaasha ama xarumaha warshadaha. Shoogga korantada ayaa ah mid aan suurtagal ahayn marka la eego xaaladahan. Si kastaba ha ahaatee, waxay ku dhici karaan itimaalka hoose sababtoo ah cillad. (1)
Qaybta IV: Qalabka lagu daray qaybtan waxa loo isticmaalaa dhinaca hore ee transformer-ka go'doomiyay ee leh dahaar la xoojiyay iyo cabbiraadda xadhkaha korontadda ee la dhigay dhismayaasha bannaanka ah (xadhkaha sare, fiilooyinka).
Guddiga Caalamiga ah ee Electrotechnical Commission (IEC) ayaa soo saaray afar heer oo koronto iyo xoog goob magnetic oo leh talooyinka tijaabada ku meel gaadhka ah ee mid kasta.
Features | CAT I | CAT II | CAT III | XARAFKA XNUMX |
Danab shaqeeya | 150V | 150V | 150V | 150V |
300V | 300V | 300V | 300V | |
600V | 600V | 600V | 600V | |
1000V | 1000V | 1000V | 1000V | |
danab ku meel gaadh ah | 800V | 1500V | 2500V | 4000V |
1500V | 2500V | 4000V | 6000V | |
2500V | 4000V | 6000V | 8000V | |
4000V | 6000V | 8000V | 12000V | |
Isha tijaabada (xakamaynta) | 30 ohm | 12 ohm | 2 ohm | 2 ohm |
30 ohm | 12 ohm | 2 ohm | 2 ohm | |
30 ohm | 12 ohm | 2 ohm | 2 ohm | |
30 ohm | 12 ohm | 2 ohm | 2 ohm | |
Hadda shaqaynaysa | 5A | 12.5A | 75A | 75A |
10A | 25A | 150A | 150A | |
20A | 50A | 300A | 300A | |
33.3A | 83.3A | 500A | 500A | |
Joogtada ku meel gaadhka ah | 26.6A | 125A | 1250A | 2000A |
50A | 208.3A | 2000A | 3000A | |
83.3A | 333.3A | 3000A | 4000A | |
133.3A | 500A | 4000A | 6000A |
Sida habka qiimaynta multimeterka ee CAT u shaqeeyo
Multimeter-yada inta badan laga isticmaalo suuqa waxay u kala baxaan laba qaybood: CAT I iyo CAT III. Multimeter-ka CAT I waxa loo isticmaalaa in lagu cabbiro korantada ilaa 600V, halka multimeterka CAT III loo isticmaalo ilaa 1000V. Wax kasta oo ka sarreeya oo u baahan darajo xitaa ka sarreeya, sida CAT II iyo IV, oo loogu talagalay 10,000V iyo 20,000V siday u kala horreeyaan.
Tusaale isticmaalka nidaamka qiimaynta multimeter ee CAT
Ka soo qaad inaad eegayso korantada gurigaaga. Waxaad u baahan tahay inaad hubiso dhowr fiilooyin. Fiilooyinku waxay si toos ah ugu xidhan yihiin khadka korontada ee ugu weyn (240 Volts). Taabashada iyaga si qalad ah waxay keeni kartaa dhaawac halis ah ama dhimasho. Si aad si badbaado leh u cabbirto xaaladdan, waxaad u baahan doontaa multimeter-ka heerka sare ah (CAT II ama ka wanaagsan) kaas oo adiga iyo qalabkaagaba ka ilaalin doona waxyeellada ay keento heerarka tamarta sare. (2)
Hoos ka daawo qaar ka mid ah maqaalladayada.
- Sida loo cabbiro danab DC ah oo leh multimeter
- Sida loo isticmaalo multimeter-ka si loo hubiyo tamarta fiilooyinka nool
- Sida loo cabbiro amps-ka multimeter-ka
talooyinka
(1) xarumaha warshadaha - https://www.sciencedirect.com/topics/social-sciences/industrial-facilities
(2) heerarka tamarta - https://www.sciencedirect.com/topics/earth-and-planetary-sciences/energy-levels
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