描述
来自电源线的杂波,能造成系统电压畸变,导致系统内电气设备的过电压、过负荷、过热甚至烧毁元器件,造成PLC等控制设备误动作。所以,在电源入口处最好应设置屏蔽变压器或电源滤波等防干扰设施。其中,电源滤波器的地要以最短线路接到中央保护地。对于直流电源,则可加装微分电容加以干扰抑制。
MKS CONTROL VALVE TYPE 153D-4-100-2, THROTTLE VALVE
MKS BARATRON 627B12TEC1B, 100 TORR, looks clean
STEC SEC-4550 MFC, N2, 30 SLM, used
STEC SEC-4550 MFC, N2, 30 SLM, used
STEC SEC-4550 MFC, N2, 40 SLM, used
STEC SEC-7355 MFC, Ar, 50 SLM, used
STEC SEC-4550 MFC, O2, 50 SLM, used
AMAT 0010-76968 OTF centerfinder emitter and 0100-76055
Motorola MVME 340B 01-W3787B01B PCB, 84-W8787B01C
STEC MFC PV-1000, Piezo valve PV-1501MC NEW
STEC MFC SEC-4600MO, N2, 100 SLM Used
BM06240 R/J, COMP SIDE REV F PB02807 PRI BOARD