Description
ESD也不单是实现联锁关系,它应该凌驾于生产过程控制之上,具有独立性,这样降低了两者同时失效的概率,ESD的安全等级要高于DCS。DCS主要是:动态控制,故障自动显示,维修时间不太关键,可以进行自动/手动切换;ESD主要是:静态监测、保护,必须测试潜在故障,维修时间非常关键,必须始终在线,不允许离线。
FIREYE E1R1 INFRARED FLAME AMP NEW
FIREYE ZB110IR FLAME SAFEGUARD
FIREYE BURNERLOGIX 60-2854-1 WIRING BASE, TERM. BLOCK
FIREYE ED550-6 USPP ED5506
FIREYE EP160 PROGRAMMER
FIREYE ED510 DISPLAY MODULE NEW BOXED
HONEYWELL C7012A1061 C7012A FLAME DETECTOR+FIREYE 48PT1
Fireye Solid State Burner Management Series D
Fireye EP160 Programmer Module Non-Recycle New In Box