Emerson Process Management LF-Series Marine Sanitation System User Manual


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LF-Series Flowmeters: Sensor/Transmitter Installation 33
I/O Wiring – FM CIO Transmitters
I/O Wiring – FM AN I/O Wiring – FM FB and PAI/O Wiring – FM CIOSensor Wiring
Figure 7-2 Basic mA wiring
Figure 7-3 HART/analog single-loop wiring
+
–
mA1
mA2
+
–
820 Ω maximum loop resistance
420 Ω maximum loop resistance
820 Ω maximum loop resistance
For HART communications:
•600 Ω maximum loop resistance
•250 Ω minimum loop resistance
+
–
HART-
compatible host
or controller
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