描述
如接线端或导线接触不良,接线端与实际信号不一致,输入信号线接反、松动、脱落,模块与底座接插不良等。人为的错误如将拨码开关位置放错,通信线接线方向错误或终端匹配器未接等。以上问题只要加强日常维修检查,加强人的责任心是可以杜绝、发现、消除的。
NEW STUBBE PRESSURE REDUCING PVDF VALVE DN 40MM 1-1/2″
ALLEN BRADLEY 1771NOV ANALOG MODULE VOLT HIGH RESO
ALLEN BRADLEY 512-BAB-3-4R-6P-24R STARTER, DISCONNECT
NEW PARKER PNEUMATIC CYLINDER 3.25CKJ-TC2AU18A/19AC2.00
NEW YOKOGAWA LR 4220E CHART RECORDER WITH EXTRAS
NEW DAKOTA SYSTEMS 5 GAS AREA MONITOR
MILLIPORE ZMQSP0D01 MILLI-Q Q-POD REMOTE DISPENSER WATE