• AK4 / SIL2 safety requirement. • Supply 230/115/48 VAC or 24 VDC. • Analog output (0) 4-20 mA of 0-10 V. • Up to 4 strain gauge full bridges in parallel ( 350 Ω ) • RS232/485, Interbus S, CANbus or Profibus as option. • 2 x setpoint relay, software programmable