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User Guide
Rev 8
September 2021
AMS Trex
Device Communicator
User Guide
1.800.561.8187
information@itm.com
www.
.com

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Summarization of Contents

AMS Trex Device Communicator User Guide
User Guide Overview
Overview of the AMS Trex Device Communicator User Guide, covering hardware, connections, applications, and diagnostics.
Documentation Conventions
Explains conventions used for notes, cautions, and warnings in the manual.
Technical Support Information
Details on how to contact technical support and what information to provide.
AMS Trex Device Communicator Overview
Precautions for the Trex Unit
Essential precautions to follow before operating the Trex unit to ensure safety and prevent damage.
Front View of the Trex Unit
Identification of the components on the front panel of the Trex unit.
Power Management
Configuration options for conserving power usage on the Trex unit.
Field Communicator Application
Device Interoperability
How the Trex unit communicates with devices using EDDL technology.
Connect - Select Screen
The screen displayed when the Trex unit cannot auto-detect a device.
Internal Resistors
Explanation of internal resistors used for HART communication and their applications.
Loop Diagnostics Application
Voltage and Current Measurements
How to read voltage and current using the Trex unit in Loop Diagnostics.
Wiring Diagrams for Loop Diagnostics
Diagrams illustrating correct wiring for various loop diagnostic procedures.
Fieldbus Diagnostics Application
GOOD, BAD, and CHECK Measurements
Understanding status labels (GOOD, BAD, CHECK) for fieldbus measurements.
Saving Measurements to a Log File
How to save measurement data to a log file for later analysis.
Troubleshoot HART Communication
Troubleshoot Fieldbus Communication
Common symptoms, possible causes, and solutions for fieldbus communication problems.
Physical Specifications
Communication Module Specifications
Technical specifications for the Device Communicator Plus communication module.
Product Certifications
Certifications and Approvals
List of certifications and approvals for the AMS Trex Device Communicator.
Wireless/Spectrum Approvals
FCC and IC
Radio frequency radiation exposure information and compliance statements.
Glossary
Activation
Process of updating the Trex unit with licenses and enabling full functionality.

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