U-Emerson wethula ama-valve aqinisekisiwe we-SIL 3

U-Emerson wethule ama-valve ahlanganayo okuqala ahlangabezana nezidingo zenqubo yokuklama Yezinga Lobuqotho Bezokuphepha (SIL) 3 ngokwezinga le-IEC 61508 le-International Electrotechnical Commission. Lezi FisherUkuhlukaniswa KwedijithaliIzixazululo zesici sokugcina zinikeza izidingo zamakhasimende zokuvala shaqa ezinhlelweni zokusebenza zesistimu yokuphepha ebaluleke kakhulu (SIS).

Ngaphandle kwalesi sixazululo, abasebenzisi kufanele bacacise zonke izingxenye zevalvu ngayinye, bathenge ngayinye, futhi bazihlanganise zibe ziphelele ezisebenzayo. Ngisho noma lezi zinyathelo zenziwe ngendlela efanele, lolu hlobo lokuhlanganisa ngokwezifiso ngeke lunikeze zonke izinzuzo zomhlangano we-Digital Isolation.

Ubunjiniyela be-valve yokuvala ukuphepha kuwumsebenzi onzima. Izimo zenqubo evamile kanye nokucasuka kufanele zihlolwe ngokucophelela futhi ziqondwe lapho kukhethwa i-valve nezingxenye ze-actuator. Ukwengeza, inhlanganisela efanele ye-solenoids, amabakaki, ama-couplings nezinye i-hardware ebalulekile kufanele icaciswe futhi ifaniswe ngokucophelela ne-valve ekhethiwe. Ngayinye yalezi zingxenye kufanele isebenze ngazinye futhi ikhonsathi ukuze isebenze.

U-Emerson ubhekana nalezi zinkinga nezinye ngokuhlinzeka ngomhlangano onjiniyela wokuvala shaqa we-Digital Isolation, oklanyelwe inqubo ngayinye. Izingxenye ezihlukahlukene zikhethwa ngokukhethekile ukuze kwanelise izidingo zohlelo lokusebenza. Yonke inhlangano ithengiswa njengeyunithi ehlolwe ngokugcwele futhi eqinisekisiwe, enenombolo eyodwa yesiriyeli namadokhumenti ahlobene achaza imininingwane yazo zonke izingxenye zomhlangano.

Ngenxa yokuthi umhlangano wakhiwe njengesixazululo esiphelele ezikhungweni ze-Emerson, unamathuba athuthuke kakhulu okuhluleka kwezinga lokufunwa (PFD). Kwezinye izimo, izinga lokuhluleka komhlangano lizoba ngaphansi kuka-50% kunenhlanganisela yezingxenye zevalvu efanayo ezithengwe ngazinye futhi zihlanganiswe umsebenzisi wokugcina.