Ekusetshenzisweni kwezinsimbi, ngaphansi kwezimo ezijwayelekile, ukusetshenziswa kwama-transmitter kuyinto ebanzi kakhulu futhi evamile, ehlukaniswe cishe ngama-pressure transmitter kanye nama-differential pressure transmitters. Ama-transmitter avame ukusetshenziselwa ukukala ingcindezi, ingcindezi ehlukene, i-vacuum, izinga loketshezi, njll.
Ama-transmitter ahlukaniswe ngohlelo lwezintambo ezimbili (isignali yamanje) kanye nohlelo lwezintambo ezintathu (isignali ye-voltage). Ama-transmitter anezintambo ezimbili (isignali yamanje) avame kakhulu; kukhona ahlakaniphile nabangahlakaniphile, kanye nama-transmitter amaningi nangokwengeziwe; ngaphezu kwalokho, Ngokusho kohlelo lokusebenza, kukhona uhlobo oluphephile ngokwemvelo kanye nohlobo olungaqhumi; lapho ukhetha uhlobo, kufanele wenze ukukhetha okuhambisanayo ngokwezidingo zakho.
1. Ukuhambisana kwe-medium evivinyiwe
Uma ukhetha uhlobo, cabanga ngethonya le-medium esibonakalayo sokucindezela kanye nezingxenye ezizwelayo, ngaphandle kwalokho i-diaphragm yangaphandle izogqwala ngesikhathi esifushane ngesikhathi sokusetshenziswa, okungase kubangele ukugqwala emishinini nasekuphepheni komuntu siqu, ngakho-ke ukukhetha izinto kubaluleke kakhulu.
2. Ithonya lokushisa eliphakathi kanye nokushisa okuzungezile kumkhiqizo
Izinga lokushisa lendawo elinganisiwe kanye nezinga lokushisa elizungezile kufanele kucatshangelwe lapho kukhethwa imodeli. Uma izinga lokushisa liphakeme kunesinxephezelo sokushisa somkhiqizo ngokwawo, kulula ukubangela idatha yokulinganisa umkhiqizo ukuba ikhukhuleke. Umthumeli kumele akhethwe ngokuya ngendawo yokusebenza yangempela ukuze agweme izinga lokushisa elibangela umongo ozwela ukucindezela. Ukulinganisa akunembile.
3. Ukukhethwa kobubanzi bokucindezela
Isilinganiso sokucindezela somshini wokudlulisa ingcindezi kumele sihambisane nesilinganiso sokucindezela sedivayisi uma isebenza.
4. ukukhethwa kwesikhombikubona sokucindezela
Enqubweni yokukhetha, usayizi wentambo ofanele kufanele ukhethwe ngokuya ngosayizi wembobo yokucindezela yemishini yangempela esetshenzisiwe;
5. Ukukhethwa kwesixhumi esibonakalayo sikagesi
Uma ukhetha imodeli, kubalulekile ukuqinisekisa ukusetshenziswa kwezindlela zokuthola isignali kanye nezimo zokuxhumanisa izintambo endaweni. Isignali yesensa kumele ixhunywe ku-interface yokutholwa komsebenzisi; khetha isensa yokucindezela ene-interface kagesi efanele kanye nendlela yesignali.
6. Ukukhetha uhlobo lokucindezela
Ithuluzi elilinganisa ukucindezela okuphelele libizwa ngokuthi i-absolute pressure gauge. Kuma-industrial pressure gauge avamile, i-gauge pressure ilinganiswa, okungukuthi, umehluko wokucindezela phakathi kwe-absolute pressure kanye ne-atmospheric pressure. Uma i-absolute pressure inkulu kune-atmospheric pressure, i-gauge pressure elinganisiwe iba yi-positive, ebizwa ngokuthi i-positive gauge pressure; uma i-absolute pressure ingaphansi kwe-atmospheric pressure, i-gauge pressure elinganisiwe iba yi-negative, ebizwa ngokuthi i-negative gauge pressure, okungukuthi, izinga le-vacuum. Ithuluzi elilinganisa izinga le-vacuum libizwa ngokuthi i-vacuum gauge.
Isikhathi sokuthunyelwe: Disemba 31-2021