The MTL5314 connects to a 2- or 3-wire 4/20mA transmitter or current source located in the hazardous area. It supplies one or two configurable alarm signals to the safe area via changeover relays. Each relay may be configured individually to signal an alarm condition (relay de-energised) when the input signal is greater than or less than a pre-set value. In addition, the MTL5314 can be connected in series to the hazardous-area side of an MTL5541 4/20mA repeater power supply (or equivalent device) to provide two trip alarm outputs direct from the transmitter signal (see schematic diagram). Looping the transmitter signal through the MTL5314 (via terminals 1 and 3) does not affect HART ® communications. 上海卓峙自动化设备有限公司是一家从事工业自动化工程设计、安装、调试、售后服务和代理销售各类电气，服务于一体的企业。公司坚持“信誉为本，诚信经营”的理念，依靠网络从事传感器，安全栅、隔离栅，电源，低压电器以及气动液压,仪器仪表,机电产品销售与工程配套服务，公司为冶金、石油、化工、钢铁、电力、电子、船舶、汽车、环保、纺织、食品、医疗、制药、包装、等众多行业提供完善的技术方案和备件服务。 特价销售：德国倍加福(P F)，英国MTL安全栅，德国图尔克(TURCK)，德国施克(SICK)，德国菲尼克斯(PHOENIX)，邦纳(BANNER)，日本CKD，德国易福门(IFM)等，全系列安全栅，电源，模块，传感器，编码器，端子继电器等，公司备有大量库存，另为客户提供偏门冷门的欧州产品。