Emerson wetfule imihlangano yekucala yemavalvu lahlangabetana netidzingo tenchubo yekuklama yeLizinga Lebucotfo Lekuphepha (SIL) 3 ngekuya kwelizinga le-IEC 61508 leKhomishini Yemhlaba Yebuchwepheshe Begezi. Laba Fisher
Kuhlukaniswa kwedijithalitisombululo tetintfo tekugcina tikhonta tidzingo temakhasimende tekuvala emavalvu ekusebentiseni lokubucayi kweluhlelo lwetintfo tekuphepha (SIS).
Ngaphandle kwalesisombululo, basebentisi kumele bacacise tonkhe tincenye te-valve ngamunye, batfole ngayinye, bese bayatihlanganisa tibe yintfo lesebentako. Noma ngabe letinyatselo tentiwa kahle, loluhlobo lwemhlangano welisiko solo angeke lunikete tonkhe tinzuzo temhlangano we-Digital Isolation.
Kunjiniyela ivalve yekuvala yekuphepha ngumsebenti loyinkimbinkimbi. Letimo letijwayelekile naletitfukutsele tenchubo kumele tihlolwe kahle futsi tivisiseke uma ukhetsa tincenye te-valve kanye ne-actuator. Ngetulu kwaloko, inhlanganisela lefanele yema solenoids, kubakaki, ema couplings kanye naletinye tintfo letibalulekile kumele icaciswe futsi ihambisane kahle ne valve lekhetsiwe. Ngayinye yaletincenye kumele isebente ngayinye futsi ngekuhlanganyela kute isebente.
Emerson ubhekana naleti kanye naletinye tindzaba ngekuniketa umhlangano wevalve yekuvala ye-Digital Isolation leyentiwe ngebunjiniyela, leyentelwe inchubo ngayinye letsite. Letincenye letehlukene tikhetwa ngalokukhetsekile kute tigcwalise tidzingo tesicelo. Wonkhe lomhlangano utsengiswa njengeyunithi lehlolwe ngalokuphelele futsi lecinisekisiwe, ngenombolo yinye yekulandzelana kanye nemibhalo lehambisanako lechaza imininingwane yayo yonkhe incenye yemhlangano.
Ngenca yekutsi lomhlangano wakhiwe njengesisombululo lesiphelele etikhungweni tase-Emerson, uyatigcabha ngematfuba latfutfukisiwe kakhulu ekuhluleka ngekufuna (PFD) rate. Ngalesinye sikhatsi, lizinga lekuhluleka kwemhlangano litawufika ku-50% ngaphansi kwekuhlanganiswa kwetincenye letifanako te-valve letitsengwe ngamunye futsi tihlanganiswe ngumsebentisi wekugcina.
Sikhatsi sekuposa: Lweti-20-2021
