描述
对于DCS系统供电的电源,一般都采用隔离性能较好的电源,而对于变送器供电的电源和DCS系统有直接电气连接的仪表的供电电源,并没受到足够的重视,虽然采取了一定的隔离措施,但普遍还不够。因此,现场多采用在线式不间断供电电源(UPS)供电,提高供电的安全可靠性,其UPS还应具有较强的干扰隔离性能,它是一种DCS控制系统的理想电源。
PARKER A1 CONSTANT PRESSURE EXPANSION VALVE
PARKER PNEUMATIC PRESSURE REGULATOR 3/8″ Ports 06R213AC
Expedited shipping available
PARKER PRESSURE FLOW CONTROL # PCK1020S-11
PARKER CONVUM DIGITAL PRESSURE SENSOR MPS-P32N-PG
PARKER PRESSURE REGULATOR
Parker-Finite Pneumatic pressure regulator F06R313AC
PARKER ASIC PERFORMER PRESSURE TRANSDUCER TRANSMITTER
PARKER ASIC PERFORMER PRESSURE TRANSDUCER TRANSMITTER