1.Izinzwa zokushisa ze-PT100zivame ukusetshenziswa kanye nezinsimbi zokubonisa, amathuluzi okurekhoda, izibalo ze-elekthronikhi, njll. Kala ngokuqondile izinga lokushisa loketshezi, umusi negesi nendawo emaphakathi nendawo eqinile ebangeni lika -200 ° C ~ 500 ° C ezinqubweni ezihlukahlukene zokukhiqiza.Ukuze wahlulele ukuthi yinhle noma yimbi, vele usebenzise i-multimeter yedijithali ukuyikala.
2. Isici senzwa yokushisa ye-PT100 ukuthi amatheminali amabili okukhipha (ngezinye izikhathi ama-multi-terminal) axhunywe nge-multimeter (nakuba kukhona inani elithile lokumelana).Uma isifunda esivulekile sizoba sibi, ngokungangabazeki isinyathelo sokuqala ekwahluleleni kwangempela.Inani lokumelana lokumelana nokushisa lilungisiwe.Isibonelo, izinga lokushisa elijwayelekile le-PT100 lilingana no-110 ohms, futhi izinga lokushisa elivamile le-CU50 lizungeze ama-55 ohms.Okukhiphayo kwe-thermocouple yinani le-voltage.Ezingeni elithile lokushisa, izokhipha isignali ye-voltage ngokuvamile esukela emashumini ambalwa kuya kwamashumi amamilivolthi, engalinganiswa ngefayela le-voltage le-multimeter.
3. I-voltage ephumayo ye-thermocouple i-mV embalwa kuphela, kuye ngokunemba kwe-multimeter.I-multimeter yedijithali ingasetshenziselwa ukulinganisa okunzima nokwahlulela.Okukhiphayo kwe-thermocouple kukulandelana kwama-millivolts.Akunakwenzeka ukuthola okukhiphayo nge-multimeter, kodwa ingalinganiswa ngokuqhubeka kwayo.Ezimweni eziningi, inqobo nje uma ingxenye ye-galvanic (lapho izintambo ezimbili zishiselwe khona) ixhunyiwe, ayikho i-oxidation, akukho monakalo, futhi ngokuvamile ayikho inkinga.Ngakho ngesikhathi esifanayo, ingakhishwa emgodleni ukuze ihlolwe okubukwayo.Ukuze uhlole ngempela, kuyadingeka ukusebenzisa i-thermocouple evamile ukuze uqhathanise futhi ulinganise inani le-millivolt eliphumayo.
4. Okungenhla kuyindlela yokuthola ukuthi ngabe iInzwa yokushisa ye-PT100umkhiqizo ojwayelekile.Ngethemba ukusiza wonke umuntu.Uma unemibuzo, ungaxhumana nabasebenzi bethu bezobuchwepheshe.
Isikhathi sokuthumela: Dec-06-2021