Emerson Rosemount 702 - 6.7 Switching greater currents or voltages

Figure 6-12: Dual Output Circuits with a Common Ground
A. LOAD
B. OUTPUT
If two output circuits are connected to a single Rosemount 702 Transmitter
with a single power supply, both CH + and CMN terminals must be
connected to each output circuit. The negative power supply wires must be
at the same voltage and connected to both CMN terminals.
Figure 6-13: Dual Output Circuits with One Power Supply
A. LOAD
B. OUTPUT
6.7
Switching greater currents or voltages
It is important to note that the maximum output switching capacity is 26
volts DC and 100 milliamps. If a greater voltage or current is to be switched,
an interposing relay circuit can be used. Figure 6-14 shows an example of a
circuit to switch higher currents or voltages.
April 2021 Quick Start Guide
Quick Start Guide 29