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HART/analog single loop wiringFigure 5-2:
A
B
A.
820 Ω maximum loop resistance
B. HART-compatible host or controller
5.3 HART multidrop wiring
Tip
For optimum HART communication, single-point ground the output loop to an instrument-grade
ground.
HART multidrop wiringFigure 5-3:
A
B
C
D
E
F
A. 250–600 Ω resistance
B. HART-compatible host or controller
C. HART-compatible transmitters
D. Model 1500 or Model 2500 transmitter
E. SMART FAMILY
™
transmitters
F. 24 VDC loop power supply required for passive transmitters
I/O wiring for Model 1500 transmitters
36 Micro Motion
®
Model 1500 and Model 2500