Description
要有必需的后备手段：重要的保护和联锁，出了有通讯连接外，还必须具有硬接线方式；对重要的调节设备，除了在操作员站上有软手操外，还必须有后备手操，以便在DCS控制系统控制器或I/O模件发生故障时，仍然可以对重要设备进行及时干预。
0-200AMP DC CIRCUIT BREAKER CONNECTOR RESISTANCE TESTER
200A AC POWER LINE WIRING GROUND BOND BONDING TESTER
200AMP COPPER NICKEL CHROME ANODIZING PLATING RECTIFIER
LAMBDA 0-13V @ 0-200A DIGITAL REGULATED DC POWER SUPPLY
2NEWIB DORROUGH 40-A2 AUDIO VU LEVEL AVERAGE PEAK METER
WESTERN ELECTRIC VARIAC 4 VINTAGE TUBE AUDIO AMPLIFIER
5KW ANALOG DIGITAL AUDIO STUDIO AC POWER LINE REGULATOR
