Analog Input Module HART Ex i / I.S. Inputs, 4 + 4-Channels Series 9461/12-xx-21

The 9461/12-xx-21 series HART Analog Input Module for Zone 1 has four channels for Ex i operating and supplying two-conductor HART transmitters and four channels for Ex i operating active four-conductor HART transmitters with 0/4 to 20 mA signals. 

HART communication is bidirectional. All inputs are short-circuit proof, galvanically separated from the system and monitored to check for wire breakage/short-circuiting.