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Inzwa yeleveli yomndeni wakwa-TN yakhelwe ukunikeza ukugadwa kwezinga likaphethiloli okunembayo nokunokwethenjelwa ezindaweni zokusebenza ezinzima. Idizayinelwe ngokugxila ekuzinzeni nasekuhlanganiseni kalula, le nzwa isebenza njengengxenye ebalulekile yabaphathi besikhungo, onjiniyela, nochwepheshe bokuthengwa kwempahla abafuna ukuthuthukisa imishini yabo yokuphehla amandla. Ngokuletha ukufundwa kweleveli kaphethiloli okuqhubekayo nokunembile, uchungechunge lwe-TN lusiza ukugcina ukusebenza okungaphazamiseki futhi lunciphisa ingcuphe yokwehla kwesikhathi esingalindelekile kuzo zonke izinhlelo zokusebenza zezimboni nezentengiso.
Enye yezinzuzo eziyinhloko zaleli qapha lezinga likaphethiloli isignali yayo evamile yokuphuma kwe-analog. Kubahlanganisi bohlelo namathimba okunakekela, ukuhambisana nengqalasizinda ekhona kuyisici esibalulekile phakathi nenqubo yokukhetha. Ukukhishwa kwe-analog kuqinisekisa ukuthi inzwa ingahlanganiswa kalula futhi ngokushesha ezinhlobonhlobo zezinhlelo ezikhona zokulawula i-generator namaphaneli okuqapha. Lokhu kuhlanganiswa okuqondile kunciphisa kakhulu isikhathi sokufaka, kwehlisa izindleko zokuthumela, futhi kunikeza opharetha ukufinyelela ngokushesha ekufundweni kwezinga likaphethiloli okunembile ngaphandle kwesidingo seziguquli zedijithali eziyinkimbinkimbi noma ukuguqulwa okubanzi kwesistimu.
Emgogodleni wenzwa yezinga lomndeni wakwa-TN kuyindlela ethembeke kakhulu yokuntanta. Lo mshini uklanyelwe ngokukhethekile ukuthi uhambe ngokuguquguqukayo ngokuhambisana namaleveli kaphethiloli ashintshayo ngaphakathi kwethangi. Njengoba izinga loketshezi likhuphuka noma lehla, i-float iphendula ngokushesha nangokushelela, iqinisekisa ukuthi isistimu yokuqapha ithola idatha eqhubekayo nenembile. Lesi simiso sokusebenza esisebenzayo siqinisekisa izilinganiso ezizinzile phakathi nezikhathi ezinde, sinciphisa izingozi ezihlobene nokufunda okungamanga futhi siqinisekise ukuthi amasistimu akho akhiqizayo ahlala enedatha enembile kaphethiloli edingekayo ukuze usebenze kahle futhi uphephile.
Ukugcina ubuqotho besistimu emathangeni kaphethiloli wezimboni kudinga ukuvikeleka okuqinile ekungcoleni okujwayelekile koketshezi. Ukuze kubhekwane nalokhu, inzwa yeleveli ye-TN ifakwe isihlungi esiklanywe ngokukhethekile esivimbela ngokugcwele imfucumfucu, izinhlayiya, nodaka ekungeneni nasekuphazamiseni izingxenye zokuzwa. Lesi sici esilwa nokuvala sibalulekile ekwehliseni imvamisa yokulungisa kanye nokwelula isikhathi sokusebenza kwenzwa. Ngaphezu kwalokho, ukufakwa kwe-air okukhethwa kukho kuvumela ukulinganisa kwengcindezi efanele ngaphakathi kwesistimu. Ngokuhlangene, isihlungi nesikhala somoya sisebenza ukuze kugcinwe ubuqotho besakhiwo nokusebenza, ukuqinisekisa ukuthi inzwa iletha ukusebenza okungaguquki ngisho nasezimeni zikaphethiloli eziyinselele.
Ukuphazamiseka kwamandla okungahleliwe ngenxa yokuphathwa kabi kukaphethiloli kungaholela ekulahlekeni okukhulu kokusebenza kanye nokukhathazeka ngokuphepha. Lesi sixazululo esibanzi sokuqapha uphethiloli senzelwe ngqo ukuthuthukisa ukusebenza kahle nokuthembeka kwezinhlelo zamajeneretha zesimanje. Kungakhathaliseki ukuthi isetshenziswe ezimbonini ezisindayo ezikhiqizayo, izinhlelo zamandla eziyisipele zezentengiselwano, noma amasayithi okusebenza akude, inzwa yeleveli yomndeni wakwa-TN inikeza idatha ebalulekile edingekayo ukuze kuphathwe izinsiza zikaphethiloli ngempumelelo. Ngokuvimbela ukuncipha kukaphethiloli okungalindelekile nokuvikela izinjini ezikhiqiza amajeneretha ukuthi zome, le nzwa isebenza njengesivikelo esibalulekile ekusebenzeni okuqhubekayo kwezentengiselwano nezimboni, ekugcineni yehlise isamba sezindleko zobunikazi nokuthuthukisa ukusimama kwesikhungo.
Amapharamitha wobuchwepheshe alandelayo aveza ukucaciswa okubalulekile nezinketho zokwenza ngokwezifiso zenzwa yezinga likaphethiloli i-TN-250. Sicela ubuyekeze ubukhulu bomzimba, amasignali aphumayo kagesi, nokucushwa kwamapayipi ukuze uqinisekise ukuhlanganiswa okufanele nezimfuneko zakho zokuqapha uphethiloli. Ukucaciswa okubalulekile, okufana nobude be-probe, ububanzi bepayipi, nokumelana nokuphumayo, kungenziwa ngendlela oyifisayo kakhulu ukusekela izidingo zokufaka ezihlukahlukene.
| Inombolo Yemodeli | I-TN-250 |
| Ubude | 250mm (kusuka phansi kuya emaphethelweni eyunithi yekhanda); I-110mm kuya ku-1500mm ingenziwa ngokwezifiso |
| Okubalulekile | I-Stainless steel probe kanye ne-NBR float |
| Isiginali yokuphumayo | 0-190 ohm noma 240-33 ohm (Kuyenzeka ngokwezifiso) |
| Isixazululo | 21mm (Okuzenzakalelayo) |
| I-Float Dimension | 35*32mm (NBR) |
| Ipayipi lokudonsa amafutha | φ8mm, φ10mm, noma φ12mm (Ongakukhetha); Iyunithi yesihlungi uyazikhethela |
| Ipayipi Lokubuyisela Uphethiloli | φ8mm, φ10mm, noma φ12mm (Ongakukhetha); Ubude bungenziwa ngendlela oyifisayo |
| I-Air Vent | φ6mm (Okuzenzakalelayo) |
| Ubude bekhebula | 460mm ngaphandle kwesixhumi (Okuzenzakalelayo); Ubude bungenziwa ngendlela oyifisayo |
| Isixhumi | Ongakukhetha (Ingahlanganiswa kukhebuli) |