Honeywell STT750 SmartLine - Wiring a Transmitter; Loop Power Overview; Figure 11 - HART;DE Transmitter Operating Ranges

Revision 4 STT750 Temperature Transmitter User’s Manual Page 13
3.5. Wiring a Transmitter
3.5.1. Loop Power Overview
The transmitter is designed to operate in a two-wire power/current loop with loop resistance and
power supply voltage within the HART operating range shown in Figure 11.
Figure 11 – HART/DE Transmitter Operating Ranges
Loop wiring is connected to the Transmitter by simply attaching the positive (+) and negative (–) loop
wires to the positive (+) and negative (–) terminals on the Transmitter terminal block in the
Electronics Housing. Connect the Loop Power wiring shield to earth ground only at the power supply
end. Note that the Transmitter is not polarity-sensitive.