U-Emerson wazisa iindibano zevalvu eziqinisekisiweyo ze-SIL 3

U-Emerson uye wazisa iindibano zevalvu zokuqala ezihlangabezana neemfuno zenkqubo yoyilo lweNqanaba leSidima soKhuseleko (i-SIL) 3 ngokwe-International Electrotechnical Commission's IEC 61508 standard.Ezi FisherUkwahlulwa kweDijithaliIzisombululo zento yokugqibela zikhonza iimfuno zabathengi kwiivalvu zokuvala kwinkqubo yokhuseleko ebalulekileyo (SIS) izicelo.

Ngaphandle kwesi sisombululo, abasebenzisi kufuneka bachaze onke amacandelo evalvu nganye, bathenge nganye, kwaye bawahlanganise asebenze ngokupheleleyo.Nangona ezi nyathelo zenziwe ngokuchanekileyo, olu hlobo lwendibano yesiko alusayi kubonelela zonke izibonelelo zeDigital Isolation assembly.

Ubunjineli bevalve yokuvalwa kokhuseleko ngumsebenzi onzima.Iimeko zenkqubo eqhelekileyo kunye nokuphazamiseka kufuneka zihlolwe ngononophelo kwaye ziqondwe xa ukhetha i-valve kunye ne-actuator components.Ukongezelela, ukudibanisa okufanelekileyo kwee-solenoids, iibrakethi, ukudityaniswa kunye nezinye izixhobo ezibalulekileyo kufuneka zichazwe kwaye zihambelane ngokucophelela nevalve ekhethiweyo.Ngalinye kula macandelo kufuneka lisebenze ngokwalo kunye nangekonsathi ukuze lisebenze.

U-Emerson ujongana nale miba kunye neminye ngokubonelela ngendibano yevalvu yokuvalwa kweDijithali yeDijithali, eyilelwe inkqubo ethile.Amacandelo ahlukeneyo akhethwe ngokukodwa ukwanelisa iimfuno zesicelo.Indibano yonke ithengiswa njengeyunithi evavanyiweyo neqinisekisiweyo ngokupheleleyo, enenombolo yothotho kunye namaxwebhu anxulumeneyo achaza iinkcukacha zenxalenye nganye yendibano.

Ngenxa yokuba indibano yakhiwe njengesisombululo esipheleleyo kwizibonelelo ze-Emerson, iqhayisa ngokuphucuka kakhulu kokunokwenzeka kokungaphumeleli kwimfuno (PFD).Kwezinye iimeko, izinga lokungaphumeleli kwendibano liya kuba li-50% ngaphantsi kokudibanisa izakhi zevalve ezifanayo ezithengiweyo ngabanye kwaye zihlanganiswe ngumsebenzisi wokugqibela.