Ama-pressure transmitter ayizinto ezibalulekile ezivame ukusetshenziswa ekulinganiseni, ekuqapheni nasekulawuleni ukushintshashintsha kwengcindezi kumagesi, uketshezi kanye noketshezi. Angadlala indima ebalulekile ekuqinisekiseni ukuphepha, ukusebenza kahle, kanye nokuthembeka kwezinqubo emikhakheni eminingi yezimboni. Ukuqonda ukuthi yini umphumela we-pressure transmitter kuyadingeka kochwepheshe kanye nabaqhubi abathembele ekufundweni kwengcindezi okunembile emsebenzini wabo.
Isithumeli sokucindezela sivame ukuguqula isignali esitholwe kusuka ku-sensor yokucindezela ehlanganisiwe sibe isignali kagesi enkulu kamuva edluliselwa ohlelweni lokulawula (PLC/DCS) ukuze kuqashwe futhi kulawulwe ngesikhathi sangempela. Ngokukhethekile, izinhlobo ezivamile zokukhishwa kwesignali yilezi ezilandelayo:
Umphumela Wamanje:Uhlobo olukhulu lokukhipha oluvame kakhulu isignali yamanje, ngokuvamile ngesimo seluphu yamanje engu-4-20 mA. Ukukhipha kunobudlelwano obuqondile nenani lokucindezela elikhuphuka ngokulinganayo ngokufundwa kwengcindezi. Isibonelo, ububanzi bokulinganisa bebha (0~10) bungasho iphuzu elingu-zero njengo-4mA kuyilapho ukucindezela kwebha engu-10 kufana no-20mA okwakha igrafu eqondile phakathi nesikhathi. Lolu bubanzi luvumela ukuchazwa okulula kwenani lokucindezela futhi lusetshenziswa kabanzi ezisetshenziswayo zezimboni ngenxa yokuqina kwalo ngokumelene nomsindo kagesi.
Ukukhishwa Kwedijithali: Ama-transmitter okucindezela ahlakaniphile anganikeza umphumela wedijithali ngezindlela zokuxhumana okuhlakaniphile njenge-HART, i-Modbus-RTU noma ezinye izindlela zokuxhumana. Imiphumela yedijithali iletha izinzuzo ezifana nokunemba okuphezulu, ukuguqulwa kanye nokuxilongwa endaweni, ulwazi olwengeziwe oludluliselwa ku-PLS/DCS, kanye nokunciphisa ukuthambekela komsindo. Lokhu kukhishwa kwedijithali okuhlakaniphile kuya ngokuya kuthandwa ezinhlelweni zesimanje zokwenza izinto ngokuzenzakalelayo.
Ukukhishwa kwe-Voltage:Amanye ama-pressure transmitter anganikeza ukuphuma kwe-voltage, ngokuvamile phakathi kuka-0-5V noma u-0-10V. Uhlobo lokukhishwa kwe-voltage aluvamile kakhulu kune-current loop kodwa lungaba usizo ikakhulukazi ezinhlelweni lapho amasignali e-voltage ethandwa khona ezinhlelweni zokulawula.
Ukukhishwa Kwemvamisa:Ukukhishwa kwemvamisa kubhekisela ekuguquleni ukufundwa kwengcindezi kube isignali yemvamisa. Nakuba isignali yemvamisa ingasetshenziswa kakhulu kuma-transmitter engcindezi ngenxa yezindleko eziphakeme kanye nobunzima bobuchwepheshe, ingaba wusizo kakhulu ezinhlelweni ezithile lapho kudingeka khona ukudluliselwa kwedatha ngesivinini esikhulu.
Ngemva kokukhetha isignali yokukhipha efanele, kuzonakwa nezinye izici ezingase zithonye umphumela osebenzayo:
Ukulinganisa:Ukulinganisa okufanele kuyadingeka ukuze kufundwe ingcindezi ngendlela enembile. Ukulinganisa kwasefekthri kumele kwenziwe ukuqinisekisa ukuthi umphumela uhambisana nengcindezi yokulinganisa yangempela ngendlela efanele ngokuqhathanisa umphumela womthumeli nenqubo yokucindezela eyaziwayo bese uyilungisa uma kudingeka.
Imiphumela Yokushisa:Izinga lokushisa lingaba nomthelela ekuqondeni kokukhipha. Isinxephezelo sokushisa kwefektri singasiza ekulungiseni umphumela wokushisa ongafunwanga endaweni, kodwa amazinga okushisa aphezulu angase athinte ukusebenza komthumeli. Kubalulekile ukukhetha umthumeli olinganiselwe ububanzi obuthile bokushisa bokusebenza.
Ukudlidliza Nokwethuka:Ukudlidliza kanye nokushaqeka kuzokwenzeka kwezinye izingxenye phakathi kwezindawo zezimboni okungaholela ekufundweni okungazinzile kanye nomonakalo wethuluzi. Kubalulekile ukukhetha ukwakheka kwesakhiwo okuqinile okumelana nokudlidliza bese usebenzisa izinyathelo ezidingekayo zokunciphisa ukudlidliza ukuze uvikele ubuqotho bethuluzi.
Izakhiwo Eziphakathi:Uhlobo lwendawo yokulinganisa lungathinta nomphumela. Izici ezifana ne-viscosity, ukugqwala, ziyahlukahluka ezimweni zezinto kanye nokuba khona kwezinhlayiya ezilengayo kungaholela ekufundeni kwengcindezi okuphambukile. Ukukhetha uhlobo olufanele lwe-transmitter oluhambisana nezakhiwo ezithile zoketshezi oluthile lokulinganisa kubalulekile ekusebenzeni kahle kwethuluzi.
Izinhlobo zokukhishwa kwesignali kusuka kumthumeli wokucindezela ziyisici esibalulekile ekusebenzeni kwayo. Njengomkhiqizi wezinsimbi onolwazi emkhakheni wokulawula izinqubo iminyaka engaphezu kwengu-20,Shanghai WangyuanIhlinzeka ngamathuluzi okulinganisa aqinisekisiwe futhi athembekile kanye nolwazi oluningi kuzo zonke izinhlobo zezimpawu zokukhipha kusukela ku-4~20mA evamile kanye nokuxhumana okuhlakaniphile kuya kokukhipha okwenziwe ngokwezifiso. Uma unemibuzo noma isidingo mayelana nokukhipha kokudlulisela ungangabazi ukuxhumana nathi.
Isikhathi sokuthunyelwe: Disemba 12-2024