描述
屏蔽地(AG,Analog Grounding)也叫模拟地,它可以把现场信号传输时所受到的干扰屏蔽掉,以提高信号精度。DCS系统中信号电缆的屏蔽层应做屏蔽接地。线缆屏蔽层必须一端接地,防止形成闭合回路干扰。铠装电缆的金属铠不应作为屏蔽保护接地,必须是铜丝网或镀铝屏蔽层接地。接入公共接地极。
VAT Pressure Controller 641PM-16BC-0001 working
Leybold Vacuum Turbopump Controller NT 340 M working
HVA Pneumatic Slit Valve 22211-0210 working
VAT Pneumatic Gate Valve 15040-PA24-0002 working
Leybold Vacuum Turbopump Cable 802-0087-062 0190-24523
Leybold Turbopump Controller Turbotronik NT 20 working
Osaka Vacuum Turbopump Controller TC440-C
CTI-Cryogenics Network Term. 1/2 PNL working 0190-07384