Key Parameters and Features
Core Features & Advantages
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Loop Power Without Specialized Tools: The module’s standout feature is its ability to power the 4–20 mA loop directly from the communicator, eliminating the need for external power supplies or separate loop power modules when commissioning or testing HART devices in the field. This simplifies field work and reduces the number of tools technicians must carry .
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Advanced HART Diagnostics and Configuration: The TREXCHPKLWS3 provides advanced device diagnostics for quickly resolving complex field device issues. It supports inline valve configuration and testing, allowing technicians to analyze and troubleshoot digital valve controllers without affecting the running process .
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Intrinsically Safe for Hazardous Areas: With ATEX, CSA, and IECEx intrinsic safety certifications (including FISCO), the communicator can be carried into hazardous areas where explosive atmospheres may be present. This eliminates the need to declassify the area or obtain hot work permits for routine device maintenance .
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Automatic Data Synchronization: Field data collected by the Trex communicator automatically synchronizes with AMS Device Manager, ensuring that device configuration changes, calibration records, and diagnostic data are captured in the plant’s asset management system without manual transcription .
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Rugged Field-Ready Design: Built for harsh industrial environments, the communicator features an IP54-rated enclosure and has been tested to survive a 1-meter drop onto concrete. Its wide operating temperature range and rechargeable Li-Ion battery (8+ hours) ensure reliability through full work shifts .
⚙️ Typical Applications
The TREXCHPKLWS3 is widely used for field device commissioning and maintenance across process industries:
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Oil & Gas: HART transmitter commissioning and valve diagnostics on offshore platforms and refineries.
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Chemical & Petrochemical: Device configuration and loop troubleshooting in hazardous areas.
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Power Generation: Instrument calibration and maintenance in turbine and boiler control loops.
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Pharmaceutical: Validation and calibration of critical process instruments in regulated environments.
Frequently Asked Questions (FAQ)
Q1: What is the primary function of the TREXCHPKLWS3?
A: It is a handheld HART device communicator used to commission, configure, and troubleshoot HART field devices. It provides loop power, advanced diagnostics, and automatic data synchronization with AMS Device Manager .
Q2: Is this device intrinsically safe for use in hazardous areas?
A: Yes. The KL designation indicates the device carries ATEX, CSA (US/Canada), and IECEx intrinsic safety certifications (including FISCO as applicable), making it suitable for use in hazardous areas .
Q3: What does the model number TREXCHPKLWS3 indicate?
A: The breakdown is: TREX = base platform; C = Device Communicator module; H = HART application; P = Li-Ion power module; KL = ATEX/CSA/IECEx IS certifications; W = Wireless (Bluetooth, Wi-Fi, NFC); S3 = Standard Support (3 Years) .
Q4: Does this model support Foundation Fieldbus?
A: No. The H in the model number indicates HART only. For combined HART and Foundation Fieldbus support, the model code would include F instead of H (e.g., TREX LFPKLWS3) .
Q5: What is the difference between the Device Communicator (C) and Device Communicator Plus (L) modules?
A: The Device Communicator (C) is the standard module for HART communication. The Device Communicator Plus (L) includes additional cables and, when ordered with the F (Fieldbus) application, includes a Foundation Fieldbus power plug. The Plus module also offers optional internal resistance (250/500 Ω) and mA measurement capability .
Q6: How long does the battery last on a full charge?
A: The rechargeable Li-Ion power module provides 8+ hours of typical use. Charging takes approximately 3 to 4 hours .
Q7: What wireless connectivity does the module support?
A: The W designation includes Bluetooth, Wi-Fi (802.11 b/g/n), and NFC radios. Wireless availability is limited to countries where spectrum approval has been obtained .
Q8: What is included with the communicator?
A: Each TREX includes: AC adapter, USB cable, lead set with connectors, hand strap, quick start guide, and installation DVD. The ValveLink Mobile application is available at no charge once the Trex unit is activated .
Recommended Models & Related Products
The TREXCHPKLWS3 is part of the AMS Trex Device Communicator family. Below are related models and components:
Choosing the Right Model
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For HART-only applications with 3-year support: The TREXCHPKLWS3 is the correct choice .
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For HART + Foundation Fieldbus applications: Select a model with F instead of H (e.g., TREX LFPKLWS3) .
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For newer generation hardware: Consider the TREX2 series, which offers updated hardware and additional applications like Radar Master and WirelessHART Provisioning .
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For extended warranty coverage: Choose the P3 suffix for Premium Support, which includes accidental damage protection .
