4-20ma Humidity Sensor

Izici Eziyinhloko Zenzwa Yomswakama engu-4-20ma ?

Izici eziyinhloko zenzwa yomswakama engu-4-20mA zimi kanje:

1. Okukhiphayo kwe-Analog:

Ihlinzeka ngesignali yamanje ye-4-20mA ejwayelekile, evumela ukuhlanganiswa okulula nezinhlelo ezihlukahlukene zokulawula kanye nabagawuli bedatha.

2. Ibanga Lokulinganisa Elibanzi:

Iyakwazi ukulinganisa umswakama ngokunembile ebangeni elibanzi, okuvumela ukusetshenziswa kwawo ezindaweni ezihlukahlukene.

3. Ukunemba Okuphezulu:

Iqinisekisa ukufundwa komswakamo okunembayo nokuthembekile, okubalulekile ekugcineni izimo ezifanele ezinqubweni zezimboni.

4. Ukusetshenziswa Kagesi Okuphansi:

Isebenzisa amandla amancane, iyenze yonge amandla futhi ifanele izinhlelo zokusebenza zesikhathi eside.

5. Iqinile futhi Iyahlala:

Idizayinelwe ukumelana nezimo ezinzima, iqinisekisa impilo yokusebenza ende ezilungiselelweni zezimboni eziyinselele.

6. Ukufaka Kalula:

Kulula ukusetha nokufaka, ukunciphisa isikhathi sokuphumula phakathi nenqubo yokusebenzisa.

7. Isondlo Esincane:

Idinga ukulungiswa okuncane, inciphisa izindleko zokusebenza zizonke.

8. Ukuhambisana:

Ihambisana nezinhlelo zokusebenza ezihlukene zezimboni, okuhlanganisa izinhlelo ze-HVAC, ukuqapha imvelo, nokulawula inqubo.

9. Isikhathi Sokuphendula Ngokushesha:

Ihlinzeka ngedatha yomswakamo wesikhathi sangempela, okuvumela ukusabela okusheshayo ezinguqukweni zezimo zemvelo.

10. Iyabiza:

Inikeza isixazululo esingabizi kakhulu sokulinganisa umswakamo okunembile, okunikeza inani lemali.

Sekukonke, inzwa yokuswakama engu-4-20mA iyithuluzi elithembekile neliguquguqukayo, elibaluleke kakhulu kumswakama onembile.

ukuqapha ezinqubweni ezahlukene zezimboni kanye nezicelo.

Kungani Kufanele Usebenzise okukhiphayo okungu-4-20mA , Ungasebenzisi i-RS485?

Njengoba Uyazi Ukusebenzisa okukhiphayo okungu-4-20mA kanye nokuxhumana kwe-RS485 zombili izindlela ezivamile zoku

ukudlulisa idatha kusuka kuzinzwa namathuluzi, kodwa zisebenzisa izinjongo ezihlukile futhi zinikeza izinzuzo ezihlukile:

1. Ubulula kanye Nokuqina:

I-4-20mA loop yamanje iyisiginali ye-analog elula edinga izintambo ezimbili kuphela ukuxhumana. Incane

ikwazi ukubekezelela umsindo kanye nokuphazamiseka, okuyenza iqine kakhulu futhi ifanele izindawo zezimboni ezinokhahlo

lapho umsindo kagesi udlangile.

2. Ikhebula Elide ligijima:

Amasiginali we-4-20mA angahamba phezu kokugijima amakhebula amade ngaphandle kokonakala kwesignali okubalulekile. Lokhu kwenza kube kuhle

ukufakwa lapho izinzwa zitholakala kude nesistimu yokulawula noma okokusebenza kokutholwa kwedatha.

3. Ukuhambisana:

Amasistimu amaningi okulawula amafa nemishini emidala yakhelwe ukusebenza ngamasignali angu-4-20mA. Ukulungisa kabusha

amasistimu anjalo anokuxhumana kwe-RS485 angadinga izinguquko ezengeziwe zehadiwe nesofthiwe, ezingase

kube eqolo futhi kudle isikhathi.

4. Amandla Eluphu Yamanje Yamanje:

I-4-20mA loop yamanje ingakwazi ukunika amandla inzwa ngokwayo, iqede isidingo sokuphakelwa kwamandla okuhlukile

indawo yenzwa. Lesi sici senza izintambo zibe lula futhi sinciphise ubunkimbinkimbi besistimu.

5. Idatha Yesikhathi Sangempela:

Nge-4-20mA, ukudluliswa kwedatha kuyaqhubeka futhi kuyisikhathi sangempela, okubalulekile ezinhlelweni ezithile zokulawula.

lapho kudingeka izimpendulo ezisheshayo ezimweni ezishintshayo.

Ngokolunye uhlangothi,Ukuxhumana kwe-RS485 kunezinzuzo zako siqu, njengokusekela ukuxhumana kwe-bidirectional,

ukunika amandla amadivayisi amaningi ebhasini elifanayo, nokuhlinzeka ngokuguquguquka kwedatha okwengeziwe. I-RS485 ijwayele ukusetshenziselwa idijithali

ukuxhumana phakathi kwamadivayisi, anikeza amanani aphezulu wedatha namandla okushintshanisa idatha abanzi.

Ekugcineni, ukukhetha phakathi kwe-4-20mA ne-RS485 kuncike kuhlelo lokusebenza oluthile, ingqalasizinda ekhona,

kanye nezimfuneko zokuvikeleka komsindo, amanani edatha, nokuhambisana nokulawula kanye nezinhlelo zokutholwa kwedatha.

Indlela ngayinye inamandla nobuthakathaka bayo, futhi onjiniyela bakhetha ukhetho olufanele kakhulu ngokusekelwe ku-

izidingo ezihlukile zesistimu abayiklamayo.

Okufanele Ucabangele Lapho Ukhetha I-4-20ma

Inzwa Yomswakama Yephrojekthi Yakho Yokuqapha Ukuswakama ?

Lapho ukhetha inzwa yokuswakama engu-4-20mA yephrojekthi yakho yokuqapha umswakama, izici ezimbalwa okufanele zicatshangelwe ukuze kuqinisekiswe ukuthi inzwa ihlangabezana nezidingo zephrojekthi futhi inikeza idatha enembile nethembekile:

1. Ukunemba Nokunemba:

Bheka inzwa enokunemba okuphezulu nokunemba ukuze uqinisekise ukuthi ukufundwa komswakamo kuthembekile futhi kuthembekile.

2. Ibanga Lokulinganisa:

Cabangela ububanzi bomswakama inzwa engawukala ngempumelelo. Khetha inzwa evala amaleveli omswakamo ahambisana nohlelo lwakho lokusebenza oluthile.

3. Isikhathi Sempendulo:

Ngokuya ngezidingo zakho zokuqapha, inzwa kufanele ibe nesikhathi sokuphendula esilungele ukuguquguquka komswakama endaweni yakho.

4. Izimo Zemvelo:

Qinisekisa ukuthi inzwa ifanele izimo zemvelo ezovezwa kuzo, njengezinga lokushisa elidlulele, uthuli, umswakama, nezinye izici ezingase zithinte ukusebenza kwayo.

5. Ukulinganisa Nokuqina:

Hlola ukuthi ingabe inzwa idinga ukulinganiswa okuvamile nokuthi ukufundwa kwayo kuzinze kangakanani ngokuhamba kwesikhathi. Inzwa ezinzile inciphisa imizamo yokulungisa futhi iqinisekisa ukunemba kwesikhathi eside.

6. Isignali yokuphumayo:

Qinisekisa ukuthi inzwa ihlinzeka ngesignali yokuphumayo engu-4-20mA ehambisana nesistimu yakho yokuqapha noma okokusebenza kokutholwa kwedatha.

7. Ukunikezwa kwamandla:

Qinisekisa izidingo zamandla zenzwa futhi uqinisekise ukuthi ihambisana nemithombo yamandla etholakalayo kuphrojekthi yakho.

8. Usayizi Womzimba Nezinketho Zokukhweza:

Cabangela usayizi womzimba wenzwa nezinketho ezitholakalayo zokukhweza ukuze uqinisekise ukuthi ilingana ngaphakathi kokusetha kwakho kokuqapha.

9. Izitifiketi Namazinga:

Hlola ukuthi ingabe inzwa iyahlangabezana yini namazinga emboni afanelekile kanye nezitifiketi ukuze uqinisekise ikhwalithi yayo nokuhambisana.

10. Isithunzi somkhiqizi:

Khetha inzwa kumkhiqizi othembekile nothembekile onerekhodi lokukhiqiza izinzwa zekhwalithi ephezulu.

11. Ukusekela kanye Nemibhalo:

Qinisekisa ukuthi umkhiqizi uhlinzeka ngosekelo olwanele lobuchwepheshe kanye namadokhumenti okufakwa kwenzwa, ukulinganisa, nokusebenza.

12. Izindleko:

Cabangela isabelomali sephrojekthi yakho futhi uthole inzwa ehlinzeka ngezici ezidingekayo nokusebenza ngaphandle kokudlula isabelomali sakho.

Ngokucubungula lezi zici ngokucophelela, ungakhetha inzwa yomswakamo efaneleke kakhulu engu-4-20mA ehlangabezana nezidingo ezithile zephrojekthi yakho yokuqapha umswakama, uqinisekise ukugadwa okunembayo nokungaguquguquki kwamazinga womswakamo kuhlelo lwakho lokusebenza.

Izicelo Eziyinhloko Zenzwa Yomswakama engu-4-20ma

Ukusetshenziswa okuyinhloko kwezinzwa zomswakama we-4-20mA zifaka:

1. Amasistimu we-HVAC:

Ukuqapha nokulawula amazinga womswakamo ekushisiseni, ekungeniseni umoya, nasezinhlelweni zesimo somoya ukuze kuqinisekiswe izinga eliphezulu lomoya wasendlini nokunethezeka komuntu ongaphakathi.

2. Ukuqapha Imvelo:

Kutshalwe eziteshini zesimo sezulu, ukuphathwa kwe-greenhouse, kanye nezicelo zezolimo ukuze kuqashwe futhi kulawule umswakama wokukhula kwezitshalo nezimo zemvelo.

3. Amagumbi Ahlanzekile Nelabhorethri:

Ukugcina amazinga womswakamo anembile ezindaweni ezilawulwayo zocwaningo, ukukhiqizwa kwemithi, ukukhiqizwa kwe-semiconductor, nezinye izinqubo ezibucayi.

4. Izikhungo Zedatha:

Ukuqapha umswakama ukuvimbela ukulimala kwezinto zikagesi kanye nokugcina izimo zokusebenza ezinzile.

5. Izinqubo zezimboni:

Ukuqinisekisa amazinga womswakamo afanele ezinqubweni zokukhiqiza ukuze kuthuthukiswe ikhwalithi yomkhiqizo, kuvinjwe izinkinga ezihambisana nomswakama, futhi kusekelwe ukuzenzekelayo kwezimboni.

6. Ukomisa kanye Nokukhipha umswakama:

Isetshenziswa kuma-dryer asezimbonini nakuma-dehumidifiers ukulawula amazinga womswakamo ngesikhathi sokucubungula nokugcinwa kwezinto.

7. Isitoreji Semithi:

Ukuqapha umswakama ezindaweni zokugcina izidakamizwa ukuze kugcinwe ubuqotho nokuzinza kwemithi nemikhiqizo yemithi.

8. Amamyuziyamu nezinqolobane zomlando:

Ukugcina izinto zobuciko ezibalulekile, imibhalo yomlando, kanye nobuciko ngokulawula umswakama ukuvimbela ukuwohloka nokulimala.

9. Ama-greenhouses:

Ukudala indawo ekahle yokukhula kwezitshalo ngokugcina amazinga athile omswakamo, ikakhulukazi ezitshalweni ezintekenteke nezingavamile.

10. Ukuqapha Ikhwalithi Yomoya Wangaphakathi (IAQ):

Ukuqinisekisa ukuphila okunempilo nokunethezekile nezimo zokusebenza ngokukala umswakama ezakhiweni zokuhlala nezohwebo.

Lezi zinhlelo zokusebenza ezihlukahlukene zibonisa ukubaluleka kwezinzwa zokuswakama kwe-4-20mA ekugcineni amazinga omswakamo afanele kuzo zonke izimboni, izinqubo, nezilungiselelo zemvelo.

Imibuzo Evame Ukubuzwa

1. Iyini inzwa yomswakama engu-4-20mA, futhi isebenza kanjani?

Inzwa yokuswakama engu-4-20mA iwuhlobo lwenzwa ekala umswakama ohlobene emoyeni futhi ikhiphe idatha njengesignali yamanje ye-analogi, lapho i-4mA imele inani elincane lomswakamo (isb, 0% RH), futhi u-20mA umele inani eliphezulu lomswakamo. (isb, 100% RH). Umgomo wokusebenza kwenzwa ubandakanya into ezwa ukuswakama, njenge-capacitive noma i-resissive element, eshintsha izici zayo zikagesi ngokusekelwe kuleveli yomswakama. Lolu shintsho lube seluguqulwa lube isignali yamanje elinganiselwe, okuvumela ukuhlanganiswa okulula nezinhlelo ezihlukahlukene zokulawula kanye nabagcini bedatha.

2. Yiziphi izinzuzo ezibalulekile zokusebenzisa inzwa yokuswakama engu-4-20mA ngaphezu kwezinye izinhlobo zezinzwa zomswakama?

Izinzwa zomswakama ezingama-4-20mA zinikeza izinzuzo ezimbalwa, okuhlanganisa:

• Ukuzivikela Komsindo:Awezwani kalula nomsindo kagesi, okuwenza aqine ezindaweni zezimboni ezinokuphazamiseka okuphezulu.
• Ikhebula Elide ligijima:Amasiginali we-4-20mA angahamba amabanga amade ngaphandle kokonakala kwesignali okubalulekile, okuwenza afanelekele ukufakwa okukude.
• Ukuhambisana:Amasistimu amaningi okulawula akhona aklanyelwe ukusebenza namasignali angu-4-20mA, okwenza ukuhlanganisa kube lula.
• Idatha Yesikhathi Sangempela:Inikeza idatha eqhubekayo, yesikhathi sangempela, evumela izimpendulo ezisheshayo ezimweni zomswakama ezishintshayo.
• Ukusebenza kahle kwamandla:Lezi zinzwa zingazinika amandla ngokwazo zisebenzisa iluphu yamanje, zinciphise isidingo sokunikezwa kwamandla engeziwe ezindaweni zezinzwa.

3. Ziphi izinzwa zokuswakama kwe-4-20mA ezivame ukusetshenziswa, futhi yiziphi izinhlelo zazo ezijwayelekile?

Izinzwa zomswakama ongu-4-20mA zithola izinhlelo zokusebenza ezimbonini nasezindaweni ezihlukahlukene, njenge:

• Amasistimu we-HVAC:Ukuqinisekisa amaleveli omswakamo alungile ukuze kuthuthukiswe ikhwalithi yomoya wasendlini nokunethezeka.
• Ukuqapha Imvelo:Ukuqapha umswakama eziteshini zezolimo, zesimo sezulu, kanye nezicelo ze-greenhouse.
• Amagumbi ahlanzekile:Ukulawula amazinga omswakamo wokukhiqiza kanye nezinqubo zocwaningo ezidinga izimo zemvelo ezithile.
• Ezemithi:Ukugcina umswakama ngaphakathi kwemikhawulo ebalulekile yokukhiqizwa nokugcinwa kwezidakamizwa.
• Izikhungo Zedatha:Ukuqapha umswakama ukuze kuvikelwe izinto ezibucayi zikagesi.
• Izinqubo zezimboni:Ukuqinisekisa umswakama ofanele ezinqubweni zokukhiqiza ukuze kuthuthukiswe ukukhiqizwa kanye nekhwalithi yomkhiqizo.

4. Kufanele ngifake kanjani inzwa yokuswakama engu-4-20mA ukuze ngisebenze kahle?

Ukuze usebenze kahle, landela le mihlahlandlela yokufaka:

• Indawo yenzwa:Beka inzwa endaweni emele ukufundwa okunembile. Gwema izithiyo ezingase zithinte ukuhamba komoya eduze kwenzwa.
• Ukulinganisa:Linganisa inzwa ngokweziqondiso zomkhiqizi ngaphambi kokusetshenziswa, futhi ucabangele ukulinganisa kabusha ngezikhathi ezithile ukuze uthole ukunemba okungaguquki.
• Ukuvikelwa Kokungcola:Vikela inzwa othulini, ukungcola, nezinto ezonakalisayo ezingase zithinte ukusebenza kwayo.
• Izintambo ezifanele:Qinisekisa izintambo ezifanele nezivikelekile zeluphu yamanje engu-4-20mA ukuze uvimbele ukulahleka kwesignali noma ukuphazamiseka komsindo.
• Ukubeka phansi:Gcoba kahle inzwa nezinto zokusebenza ukuze unciphise ukuphazamiseka kukagesi.

5. Kufanele ngiyilungise kangaki inzwa yomswakamo engu-4-20mA?

Imvamisa yokulungisa incike endaweni yenzwa kanye nezincomo zomenzi. Ngokuvamile, kufanele:

• Hlola njalo:Ngezikhathi ezithile hlola inzwa kanye nendlu yayo ngomonakalo obonakalayo, ukungcoliswa, noma ukuguga.
• Ukuhlola Ukulinganisa:Yenza ukuhlola okujwayelekile kokulinganisa futhi ulinganise kabusha uma kunesidingo, ikakhulukazi uma ukunemba kubalulekile kuhlelo lwakho lokusebenza.
• Ukuhlanza:Hlanza inzwa njengoba kudingeka, ulandela izinkombandlela zomkhiqizi ukuze ugweme umonakalo.

Ukuze uthole ulwazi olwengeziwe noma imibuzo mayelana ne-4-20mA humidity sensor,

sicela ungangabazi ukuxhumana no-HENGKO nge-imeyiliat ka@hengko.com.

Ithimba lethu lizokujabulela ukukusiza nganoma imiphi imibuzo ongase ube nayo. Sibheke ngabomvu ukuzwa kuwe!