重庆川仪横河EJA440A高压力智能变送器用于测量气体、液体和蒸汽的压力，然后将其转变成4-20mADC的电流信号输出。EJA430A也可以通过BRAIN手操器或CENTUMCS/μXL或HART275手操器相互通讯，通过它们进行设定和监控等重庆川仪EJA440A智能高压力变送器部分型号：EJA440A-DCS5A-92NN,EJA440A-DDS5A-92NN,EJA440A-DCS4A-92DA,EJA440A-DBS4A-92DA,EJA440A-ECS4A-92DA,EJA440A-EBS4A-92DA,EJA440A-DCS5A-92DA,EJA440A-ECS5A-92DA,EJA440A-EBS5A-92DA,EJA440A-DCS4A-92EA,EJA440A-DCS4A-92DC,EJA440A-DCS4A-92EB,EJA440A-DCS4A-92DB,EJA440A-DCS4A-92DD,EJA440A-DCS4A-22DA,EJA440A-DCS4A-22DC,EJA440A-DCS4A-99DA,EJA440A-DCS4A-92DA/NF1,EJA440A-DCS4A-92DA/NS1,EJA440A-ECS4A-92DA/NF1EJA440A-DBS4A-92DAEJA440A-ECS4A-92DAEJA440A-EBS4A-92DAEJA440A-DCS5A-92DAEJA440A-ECS5A-92DAEJA440A-EBS5A-92DAEJA440A-DCS4A-92EAEJA440A-DCS4A-92DCEJA440A-DCS4A-92EBEJA440A-DCS4A-92DBEJA440A-DCS4A-92DDEJA440A-DCS4A-22DA)