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Emerson Rosemount 8732EM User Manual

Emerson Rosemount 8732EM
32 pages
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Quick Start Guide
00825-0400-4444, Rev AC
November 2017
Rosemount
®
8732EM Transmitter with
Modbus Protocol

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Emerson Rosemount 8732EM Specifications

General IconGeneral
BrandEmerson
ModelRosemount 8732EM
CategoryTransmitter
LanguageEnglish

Summary

1 Safety

2 Introduction

2.1 Return policy

Details the procedures and requirements for returning equipment to Emerson.

2.2 Emerson Flow customer service

3 Pre-installation

Identify options and configurations

Determining necessary options and configurations based on application requirements.

Hardware switches

Explanation of user-selectable hardware switches for power and security settings.

Mechanical considerations

Electrical considerations

National, local, and plant electrical installation requirements for the transmitter.

Environmental considerations

4 Mounting

5 Wiring

5.1 Conduit entries and connections

Specifications for transmitter conduit entry ports and connection standards.

5.2 Conduit requirements

Guidelines for using conduits, including intrinsic safety and cable bundling.

Integral mount transmitters

Wiring instructions specific to Rosemount transmitters mounted directly on the sensor.

Remote mount transmitters

Wiring instructions for Rosemount transmitters mounted remotely from the sensor.

Cable requirements

Specifications for shielded twisted pairs, cable lengths, and combination cables.

Cable preparation

Procedure for preparing cable ends for terminal connections, including stripping and shielding.

Remote junction box terminal blocks

Views and wiring table for remote junction box terminal blocks for sensor and transmitter.

5.4 Wiring sensor to transmitter

Detailed wiring diagrams for component and combination cables using the 8732EM transmitter.

5.5 Power and I/O terminal blocks

Terminal block layouts and assignments for AC and DC versions of the transmitter.

5.6 Powering the transmitter

Information on AC and DC power supply requirements and current needs for the transmitter.

5.7 Modbus output

Recommendations for Modbus RTU signal wiring using RS-485 interface.

6 Basic configuration

Local operator interface (LOI)

Instructions for navigating and using the Local Operator Interface (LOI) for configuration.

Modbus configuration

Details on configuring Modbus communication parameters like address and byte order.

Baud rate (register 115)

Setting the communication speed for the transmitter's Modbus network.

Parity (register 116)

Configuring the error-checking methodology for data transmission.

Stop bits (register 117)

Setting the number of stop bits for the Modbus data packet.

Flow units (register 61)

Specifying the units for flow rate display, including volume and mass units.

Line size (register 65)

Setting the transmitter to match the actual sensor line size for accurate measurements.

Calibration number (registers 413-420)

Information on the sensor calibration number and its location on the sensor tag.

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