• Bidirectional communication with intelligent positioners 
• Full support of HART protocol (also suited for FOXCOM 4 to 20 mA)
• No external communication resistor required
• Rail mounting and nest mounting versions 
• 1- or 2- channel versions with nest mounting
• Intrinsically safe FM and
  ATEX [EEx ia] in IIC
• Output 4 to 20 mA
• Little natural energy consumption
• Concept of intrinsic safety includes linkage of operating device
• Galvanic isolation between all circuits
• Sockets for hand terminal or PC on the front
• EMC accordance to latest NAMUR recommandations and international standards and laws
• Pluggable terminals with rail-mounted module
• Optionally, pluggable spring terminals

The Ex-Isolating Driver TV228 separates intrinsically safe and non-intrinsically safe circuits. It supplies galvanically isolated intelligent or conventional positioners, intrinsically safe is the Output.
  Connection to hand terminal or PC can be made at any location in the signal loop. The bidirectional communication between a digital control system, a hand terminal or a PC is possible.