Chapter 9 I/O Wiring - Din An Transmitters; Overview; Transmitter Outputs; Ma Output Wiring - Emerson Micro Motion LF Series Installation Manual

Flowmeter
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Chapter 9
I/O Wiring – DIN AN Transmitters
9.1

Overview

This chapter describes how to wire the outputs for LF-Series DIN AN transmitters. If you don't know
your transmitter type, see Section 1.6.
It is the user's responsibility to verify that the specific installation meets the local and national safety
requirements and electrical codes.
9.2

Transmitter outputs

Table 9-1 describes the outputs and communication protocols available for the LF-Series DIN rail
mount AN transmitter.
Note: The term "channel" is used to refer to the output terminal pairs.
Table 9-1
Terminals, channels, and output types
Terminals
21 & 22
23 & 24
31 & 32
33 & 34
9.2.1

mA output wiring

The following wiring diagrams are examples of proper wiring for the mA output on the LF-Series
DIN rail mount AN transmitter. The following options are shown:
Basic mA output wiring – Figure 9-1
HART/analog single-loop wiring – Figure 9-2
HART multidrop wiring – Figure 9-3
LF-Series Flowmeters: Sensor/Transmitter Installation
Channel
Output type
A
Milliamp
B
Not used
C
Frequency
N/A
Digital
Communication
HART/Bell202
None
None
Modbus/RS-485
47

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