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LF-Series Flowmeters: Sensor/Transmitter Installation 49
I/O Wiring – DIN AN Transmitters
I/O Wiring – DIN CIO Return PolicySpecificationsI/O Wiring – DIN AN
Figure 9-3 HART multidrop wiring with SMART FAMILY
™
transmitters and a configuration tool
9.2.2 Frequency output wiring
Figure 9-4 shows an example of proper wiring for the frequency output on the LF-Series DIN AN
transmitter.
Figure 9-4 Basic frequency output wiring
ProLink II v2.x,
HART Communicator, or
AMS software
600 Ω maximum resistance
250 Ω minimum resistancee
HART-compatible
transmitters
SMART FAMILY
™
transmitters
Note: For optimum HART communication, make
sure the output loop is single-point-grounded to
an instrument-grade ground.
24 VDC loop power
supply required for
HART 4–20 mA
passive transmitters
LF-Series DIN AN
transmitter
000042
Counter
Output voltage level is +15 VDC ±3%
with high resistance load.
Note: Refer to Figure 9-5 for output
voltage versus load resistance.
+
–