Figure 5-3: Load limitation
Maximum loop resistance = 43.5 x (power supply voltage - 10.5)
A. Load (Ω)
B. Voltage (Vdc)
C. Operating region
The total resistance load is the sum of the resistance of the signal
leads and the load resistance of the controller, indicator, Intrinsically
Safe (IS) barriers, and related pieces. If you use IS barriers, then
include the resistance and voltage drop.
Quick Start Guide February2024
20 Emerson.com/Rosemount
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