Figure 3-6: Externally-powered mA output: maximum loop resistance
0
100
200
300
400
500
600
700
800
900
1000
1100
0 7.5 15.0 22.5 30.0
B
A
A. Maximum resistance (Ω)
B. External supply voltage (V)
3.4 Wire the mA/HART
®
output
Wire the mA/HART output in explosion-proof, nonincendive, or nonhazardous installations.
Important
Meter installation and wiring should be performed only by suitably-trained personnel.
3.4.1 Wire the mA/HART
®
output (internally powered)
Procedure
Wire to the appropriate output terminal and pins.
Figure 3-7: mA/HART output wiring (internally powered)
A. mA/HART output
B. 250–600 Ω resistance
C.
HART device
Wiring the channels Installation Manual
October2023 00825-0100-5710
26 Micro Motion 4700 CIO Transmitter