Condition: Used

This Emerson AMS Trex TREXLFPKLWS3S powers on, boots fully into the operating system, and is responsive to all touch inputs. All menu operations and licensed applications function as expected, making it ready for immediate field deployment. The device carries seven fully active, non-expiring licensed software modules including ValveLink Mobile (v6.1.86.0), Field Communicator (v1.11.21231.2), Loop Diagnostics (v1.6.19341.1), and Fieldbus Diagnostics (v1.6.19341.1).

Active licensed applications:
• Field Communicator (v1.11.21231.2)
• ValveLink Mobile (v6.1.86.0)
• Loop Diagnostics (v1.6.19341.1)
• Fieldbus Diagnostics (v1.6.19341.1)
• PDF Viewer (v1.1.1.0)
• Calculator (v1.0.1971.2)
• Trex Help (v1.3.17227.1)

Included items:
• Emerson TREXLFPKLWS3S Trex Device Communicator
• Original Emerson box
• UK power adapter
• 2x test probe clips
• Various cables
• Ethernet communication cable
• Printed quick start guide

The Emerson AMS Trex Device Communicator (model TREXLFPKLWS3S) is a handheld field communicator designed for the configuration, diagnostics, commissioning, and troubleshooting of HART and FOUNDATION Fieldbus instruments in industrial and hazardous environments. The TREXLFPKLWS3S variant includes the Device Communicator Plus communication module, which adds an internal 24 VDC power supply and mA readout, enabling technicians to power and communicate with devices without additional equipment.

The device features a modern, intuitive touchscreen interface and is built to withstand the demands of daily field use. It supports EDDL (Electronic Device Description Language) technology for broad device interoperability across manufacturers. Field changes can be automatically synchronised with AMS Device Manager when connected to a host system.

Key Features:
• HART and FOUNDATION Fieldbus communication via Device Communicator Plus module
• Built-in power-the-loop functionality — connect to an instrument to power it directly
• ValveLink Mobile application for inline valve diagnostics and performance review
• Loop Diagnostics app for loop troubleshooting, checkout, and characteristic validation
• Fieldbus Diagnostics for FF segment health, DC voltage, and noise monitoring
• WirelessHART Provisioning capability
• Auto-sync with AMS Device Manager
• Application framework expandable via Upgrade Studio

Technical Specifications:
Display: 5.7 in (14.5 cm) colour VGA resistive touchscreen
Processor: 800 MHz ARM Cortex A8 / NXP
Memory: 2 GB NAND + 32 GB extended flash storage
Weight: Approximately 2.9 lbs (1,330 g)
Operating Temperature: -20 to 55 °C (-4 to 131 °F)
Enclosure Rating: IP54
Connectivity: USB 2.0 (Micro USB), Wi-Fi, NFC
Power: Rechargeable lithium-ion power module
Intrinsic Safety Certifications: ATEX, CSA (US/Canada), IECEx, FISCO
Hazardous Area Rating: Zone 0, Zone 1, Zone 2 (Group IIC); Zone 20, 21, 22; Class I Division 1 & 2, Groups A, B, C, D
Drop Test: Survives 1-metre drop onto concrete (all sides and corners)
Communication Protocols: HART, FOUNDATION Fieldbus
Device Interoperability: EDDL technology

AMS Trex Device Communicator — Official Product Data Sheet (Emerson, Nov 2023): Download PDF

AMS Trex Device Communicator — User Guide (Emerson): Download PDF

AMS Trex Device Communicator — Quick Start Guide (Emerson, English): Download PDF

AMS Trex Device Communicator — Product Support / Guardian Data Sheet (Emerson): Download PDF

AMS Trex Device Communicator — Get Started in 5 Easy Steps Brochure (Emerson): Download PDF

Shipping & Returns Policy

Shipping Policy

• Processing Time: Orders are typically processed and dispatched within 1 business day.
• Shipping Methods: We offer Expedited Shipping to all destinations using UPS/DHL/Fedex/Royal Mail and other reputable carriers.
• Shipping Times: Mainland UK: 1-2 Business Days / Mainland Europe and USA: 2-3 Business Days / Rest of the World 5-7 Business Days.
• Shipping Costs: These are calculated at checkout based on the shipping method, destination and package dimensions.
• CUSTOMS AND TAXES: It is YOUR responsibility to liaise with customs in your country and ensure your package is cleared and any taxes are paid.
• Shipping Destinations: We ship worldwide.
• Tracking: Once your order is shipped, we will provide you with a tracking number via email.
• Insurance: All shipments are insured. In case of damage, please contact us via email within 48 hours of receiving the product with photographic evidence, please also ensure a report is logged with the delivery driver.

Returns Policy

• Return Period: In the event of an item being received which is 'not as specified', you can return your purchase within 14 days of delivery.
• Condition of Items: Items must be returned unused and in their original packaging.
• Return Method: All returns must be notified in writing to hello@ttinstruments.com, the email should accompany the order number, date and reason for return and must be within 14 days of delivery.
• Restocking Fees: A restocking fee of up-to 20% is applicable for items returned for any reason other than 'not as specified'.
• Refund Method: Refunds are processed to the original method of payment within 5 business days of receiving the return.
• Exchanges: We do not offer exchanges. It will either be a replacement or a refund.
• Return Shipping Costs: Return shipping costs will be borne by the customer unless the item is 'not as specified', in this case we will arrange for the return by way of a prepaid shipping label.