描述
保护地(CG,Cabinet Grounding)
是为了防止设备外壳的静电荷积累、避免造成人身伤害而采取的保护措施。DCS系统所有的操作员机柜、现场控制站机柜、打印机、端子柜等均应接保护地。保护地应接至厂区电气专业接地网,接地电阻小于4Ω。
Brooks 7401C1ARCRFGAA Wafer-Mag Magnetic Flowmeter
Acromag 932X AVME932X 12-bit A/D Analog I/O VME
Parker Partek CASY-1271 Sampling Valve Manifold Assy
Parker CASY-1226 Sampling Valve Manifold Assy NEW!!
Motorola MVME187 MVME 187 VME Module
Technical Devices Company MARK V Component Lead Former