Emerson Process Management LF-Series Marine Sanitation System User Manual


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48 LF-Series Flowmeters: Sensor/Transmitter Installation
I/O Wiring – DIN AN Transmitters
Figure 9-1 Basic mA output wiring
Figure 9-2 HART/analog single-loop wiring
820 Ω maximum loop resistance
mA output
+
–
HART-compatible
host or controller
820 Ω maximum loop resistance
For HART communications:
• 600 Ω maximum loop resistance
• 250 Ω minimum loop resistance
+
–
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