描述
DCS系统所有I/O模块都带有CPU,可以实现对采集及输出信号品质判断与标量变换,故障带电拔,随机更换。而PLC模块只是简单电气转换元,没有智能芯片,故障后相应单元全部瘫痪.
Body for Nash 1251 liquid ring compressor, SS
LEYBOLD TURBO PUMP 1000C PN A971300407 – REFURBISHED
BOC EDWARDS iQDP80/QMB250 DRY VACUUM PUMP AND BOOSTER
VACUUM PUMP SYSTEM
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EDWARDS QDP40 DRY VACUUM PUMP BRAND NEW ( NEVER USED )
AMERICAN VACUUM COMPANY VACUUM PUMP MODEL 4206
CVC Diffusion Vacuum Pump – 35″ Inner Diameter
AIR VACUUM PUMP