ERT-03 and ERT-04 transmitter are intrinsically safe (Ex ia IIC T4 Ga) with ability to obtain metal loss/corrosion rate from all ER probes produced in P.Z.D. ERT-03 and ERT-04 measure the resistance of the probe element which changes over time then transfer to control room. A two-wire connection (loop powered) is required for both instrument power and data transmission. These transmitters are well suited for plant locations. The instruments are housed in an Ex-d IIC T6 enclosure, and all external connections are weather-proof (IP65).

All types of corrosion transmitters: 

1- corrosion transmitter model ERT-03

2- corrosion transmitter model ERT-04