Frequency Output Wiring - Emerson Micro Motion LF Series Installation Manual

I/O Wiring – DIN AN Transmitters
Figure 9-3 HART multidrop wiring with SMART FAMILY
ProLink II v2.x,
HART Communicator, or
AMS software
600 Ω maximum resistance
250 Ω minimum resistancee
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
Output voltage level is +15 VDC ±3%
Note: Refer to Figure 9-5 for output
voltage versus load resistance.
LF-Series Flowmeters: Sensor/Transmitter Installation
HART-compatible
transmitters
LF-Series DIN AN
transmitter
000042
Counter
with high resistance load.
™
transmitters and a configuration tool
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
49