Description

Emerson TREXLFPKLWS3

I. Basic Information

Model: TREXLFPKLWS3

Brand: Emerson

Product Type: Intrinsically Safe Portable Field Communicator, Dual-protocol compatible for HART + FOUNDATION Fieldbus (FF), Plus enhanced version.

Model Code Definition

TREX: Universal hardware platform of AMS Trex communicator
L: Plus enhanced communication module with full test lead kit
F: Supports both HART and FOUNDATION Fieldbus protocols
P: Built-in rechargeable lithium-ion battery module
KL: Intrinsically safe certification (ATEX, IECEx, CSA, compliant with FISCO)
W: Integrated wireless module (Wi-Fi, Bluetooth, NFC)
S3: 3-year official standard technical support & free firmware upgrade service.

Product Positioning

This device is a core portable tool for configuration, calibration and fault diagnosis of field smart instruments in process industries. It supports parameter setting, 4~20mA loop testing, loop power supply, on-line valve calibration and fault troubleshooting for all-brand HART transmitters, valve positioners and FF fieldbus instruments. With intrinsic safety certification, it can be directly operated in hazardous explosive areas such as petrochemical, oil & gas plants. Built-in wireless function realizes automatic synchronization of configuration files and fault logs with upper AMS asset management system, widely adopted for instrument commissioning, overhaul maintenance and technical renovation of automation systems.

Hardware Architecture

High-speed Main Control Unit: 800MHz NXP ARM Cortex A8 processor, equipped with 512MB DDR3 RAM, 2GB on-board flash + 32GB extended flash, running Windows Embedded Compact 2013 embedded OS, fast parsing EDDL files and storing massive configuration records.
Isolated Dual-bus Communication & Acquisition Unit: Galvanically isolated HART and FF communication circuits; high-precision mA measurement circuit with 0.1mA resolution, optional 250Ω/500Ω internal matching resistor for conventional 4~20mA loop debugging.
5.7-inch Industrial Touch HMI Unit: 640×480 VGA color resistive touch screen operable with safety gloves, multi-level backlight adjustment, physical shortcut keys for clear parameter viewing in strong light or dark cabinet environments.
Multi-mode Wireless Data Interaction Unit: Wi-Fi, Bluetooth, NFC integrated for wireless data synchronization, remote firmware upgrade; Micro USB 2.0 wired interface for data transmission with AMS host computer software.
Intrinsic Safety & Portable Structure Unit: IP54 dustproof and splash-proof enclosure, passes 1-meter drop test; built-in lithium battery supports over 8-hour continuous operation, equipped with anti-slip hand strap and protective carrying case for long-time field handheld operation.

Mounting Specifications

Processor: 800MHz ARM Cortex A8
Memory: 512MB DDR3 RAM, 2GB + 32GB flash storage
Display: 5.7-inch resistive touch screen (640×480 VGA)
Battery: Built-in rechargeable Li-ion battery, typical runtime ≥8h
Protocols: HART 5/7, FOUNDATION Fieldbus
Current Measurement: 3~22.5mA, resolution 0.1mA
Loop Power: Max 22.5mA for HART; 0~38mA for FF
Communication: Wi-Fi, Bluetooth, NFC, Micro USB2.0
Protection Class: IP54
Net Weight: 1.33kg
Operating Temperature: -20℃ ~ +55℃
Standard Accessories: Power adapter, test leads, protective bag, hand strap, USB cable.

Supporting System

Supporting Hardware

HART smart transmitters, valve positioners, FF fieldbus instruments, intrinsic safety barriers, 24VDC loop power supply, industrial switches.

Commissioning Software

Emerson AMS Device Manager, Trex firmware upgrade tool, EDDL device description library.

Upper-level System

Plant DCS, SCADA and asset management platforms for instrument lifecycle digital management via wired/wireless data synchronization.

Typical Application Industries

Petrochemical, natural gas, pharmaceutical, thermal power, metallurgy, water treatment, oil & gas pipeline, new energy storage and other process industries requiring hazardous area operation.

Product Features

Dual-protocol Integrated Compatibility: Supports both HART and FF fieldbus without hardware replacement, reducing spare tool inventory and maintenance cost.
Intrinsic Safety for Full Hazardous Area Operation: Certified by ATEX, IECEx, CSA, available for Zone 0/1/2 explosive locations for on-site instrument commissioning and troubleshooting.
Integrated Loop Power & High-precision Measurement: Powers passive bench instruments without external 24V supply; quickly locates loop open/short circuit faults and completes on-line valve stroke calibration.
Wireless Asset Data Management: Realizes wireless configuration synchronization, calibration report upload and remote firmware upgrade to avoid offline file loss and misconfiguration.
Industrial Rugged Design: IP54 enclosure, 1m drop resistance, wide temperature range adapts to harsh field environments for long-term intermittent operation.
3-year Official Technical Warranty: Free firmware and device driver upgrades for 3 years to maintain compatibility with new-generation smart instruments.

II. Technical Specifications

2.1 Electrical Parameters

Model: TREXLFPKLWS3
CPU: 800MHz NXP ARM Cortex A8, Windows Embedded Compact 2013
Storage: 512MB DDR3, 2GB+32GB flash
Protocols: HART 5/7, FOUNDATION Fieldbus
Measuring Range: 3~22.5mA, accuracy ±0.05mA, resolution 0.1mA
Internal Resistor: 250Ω / 500Ω optional
Wireless: Wi-Fi 802.11 b/g/n, Bluetooth 2.1 (10m), NFC (20cm)
Battery Runtime: ≥8 hours under typical working condition
Protection: Over-current, over-voltage, reverse connection, over-charge automatic protection.

2.2 Mechanical Parameters

Display: 5.7-inch resistive touch screen with adjustable backlight
Net Weight: 1330g
Protection Class: IP54
Shock Resistance: 1-meter drop test on concrete surface
Interfaces: Micro USB2.0, 4 banana terminals, DC charging port
Standard Accessories: Protective bag, hand strap, multi-type test leads, universal power adapter.

2.3 Environmental Specifications

Operating Temperature: -20℃ ~ +55℃
Storage Temperature: -40℃ ~ +70℃
Humidity: 5%~95%RH, non-condensing, no corrosive gas or conductive dust
Vibration: Compliant with industrial portable equipment IEC vibration standard

III. Key Features

Multi-brand Smart Instrument Configuration: Edits full instrument parameters including range, damping, alarm value and valve stroke, supports offline parameter backup and batch import/export.
4~20mA Loop Diagnosis & On-line Valve Calibration: Detects wiring faults accurately, executes 3-point valve stroke calibration and automatically generates calibration reports for compliance archiving.
In-depth HART/FF Instrument Fault Diagnosis: Reads internal hardware fault codes, supply voltage and sensor offset data to rapidly locate hidden equipment failures.
Off-line Loop Power Supply for Bench Calibration: Enables factory calibration of passive instruments without external DC power supply.
Wireless Data Sync & Remote Firmware Upgrade: Synchronizes field data to AMS platform and updates device driver library online to support newly released smart instruments.
Full-lifecycle Instrument Maintenance in Hazardous Areas: Meets safety requirements for instrument commissioning, periodic calibration and emergency troubleshooting in explosive industrial sites.

IV. Working Principle

After power-on self-test, the communicator loads the EDDL driver library, selects HART or FF protocol, and establishes galvanically isolated data communication with field instruments via test leads. It realizes two-way parameter reading and writing, meanwhile the high-precision sampling circuit measures loop current for fault diagnosis and valve calibration.

All configuration and calibration records are stored in local flash memory, which can be uploaded to upper asset management system via USB or Wi-Fi. The built-in Li-ion battery provides stable DC power with low-battery reminder to prevent accidental parameter loss. Intrinsic safety hardware limits output energy to avoid electric spark ignition in hazardous explosive environments.

V. Application Scenarios

Instrument calibration, configuration and troubleshooting for HART transmitters and control valves in petrochemical & gas hazardous plants.
Commissioning, technical renovation and loop fault diagnosis for thermal power, water treatment and metallurgy automation systems.
Periodic metering calibration and safety audit record archiving for pharmaceutical fine chemical explosion-proof workshops.
Parameter modification and fault diagnosis for FF fieldbus instruments in long-distance oil & gas pipelines and LNG stations.
Off-line factory calibration and parameter initialization of mass instruments in laboratory and maintenance workshops.