No. SS2-GTX00R-0100 Azbil Corporation - 4 - Supply voltage and load resistance 17.9 to 42 V DC. Reverse polarity protection is standard. A load resistance of 250 Ω or more is necessary between loops. See Figure 4. Figure 4 Supply voltage vs. load resistance characteristics Note) For communication with HART communicator, a load resistance of 250 Ω or more is necessary. Output Analog output (4 to 20 mA DC) with DE protocol Analog output (4 to 20 mA DC) with HART protocol Digital output (DE protocol) Output signal 3.6 to 21.6 mA 3.8 to 20.5 mA (NAMUR NE43 compliant) Failure Alarm Upper: 21.6 mA or more Lower: 3.6 mA or less 1345 1482 Load resistance (W) Supply voltage - 12.5 0.0219 245 0 17.9 42 45 Load resistance (Ω) Supply voltage (V DC) Operating Range = Operative limit 12.5