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。
Gould Vertically Immersed End Suction Pump-G&L Md. NPV
Stewart Warner Alemite Oil Mist Unit – Mod 4978-D6 New
Brand New Oil Mist Systems, bearings
NEW Barksdale Heavy Duty Valve 141R3WC3 14 Series
LOUIS ALLIS ADJUSTO SPEDE MOTOR 3 Phase 10 HP
Enerpac Parts – Lot of 23 Assorted Parts
DAYTON 20 HP MOTOR, 3540 RPM, MODEL 3N673A
McGunn Safe
Wellmark Pressure Relief Valve
Lubricating Systems LS-7AFIL Oil Mister
