Emerson AMS Trex User Manual

CAUTION!
• The Trex unit cannot power a 4-wire device. Do not connect Trex unit to the power
terminals of a 4-wire device. This can blow a fuse inside the Trex unit. The repair/
replacement will need to be completed at an authorized service center.
• Remove the USB cable from the Trex unit before connecting to a device.
• Do not use the Trex unit to power a WirelessHART device. Providing power to a
WirelessHART device may damage the device.
WARNING!
Do not add any external power to the device when the Trex unit is powering the device. This
can blow a fuse inside the Trex unit. The repair/replacement will need to be completed at an
authorized service center. Ensure the device is disconnected from the loop/segment and no
other wires are connected to the device before providing power from the Trex unit.
Procedure
1. Connect the lead set to the HART + pwr terminals on the Trex unit and to the
communication terminals on the device.
Power a HART transmitterFigure 3-29:
Power a HART positionerFigure 3-30:
Field Communicator application
User Guide 79

Emerson AMS Trex Specifications

General

Brand	Emerson
Model	AMS Trex
Category	Cell Phone
Language	English