Key Parameters and Features
Core Features & Advantages
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Basic HART Communication Module (C): The C designation indicates the basic Device Communicator module. It supports HART read/write communication on externally powered loops. Unlike the Plus (L) module, it does not include loop power capability, current measurement, or advanced loop diagnostics . The field loop must already have power and a minimum 250Ω resistance for communication.
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Intrinsically Safe for Hazardous Areas: The KL certification includes ATEX, CSA, and IECEx intrinsic safety approvals (including FISCO as applicable), allowing use in Zone 1, Zone 2, Class I Division 1, and Division 2 hazardous locations .
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Bluetooth and Wireless Connectivity: The W option includes Wi-Fi, Bluetooth, and NFC radios. Bluetooth connectivity enables wireless communication with Bluetooth-enabled field devices via the AMS Device Configurator App, providing faster connections and eliminating the need for hot work permits in hazardous areas .
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Modern Platform with Improved Performance: The TREX2 features a quad-core processor and 8x the memory of the first-generation Trex, delivering faster response times and an intuitive mobile-device-like user experience .
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Automatic Data Synchronization: Field changes made on the communicator automatically synchronize with AMS Device Manager via Wi-Fi or USB, maintaining data integrity in the plant's asset management database without manual transcription .
Typical Applications
The TREX2CHPKLWS3 is widely used for HART field device management in safe and hazardous area environments:
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Oil & Gas: HART transmitter configuration and diagnostics in hazardous areas
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Chemical & Petrochemical: Device configuration and troubleshooting in Zone 1/Division 1 environments
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Power Generation: Instrument maintenance in turbine and boiler control loops
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Pharmaceutical: Device configuration in regulated environments
Frequently Asked Questions (FAQ)
Q1: What does the model number TREX2CHPKLWS3 indicate?
A: TREX2 = Gen 2 platform; C = Device Communicator (basic) module; H = HART Application; P = Li-Ion power module; KL = ATEX/CSA/IECEx IS certifications; W = Wireless; S3 = 3-year Standard Support .
Q2: Can this model power a HART device without external power?
A: No. The C (basic) module does not include loop power capability. For Power the Loop functionality, a model with the L (Plus) module is required (e.g., TREX2LHPKLWS3) .
Q3: Does the TREX2CHPKLWS3 support FOUNDATION Fieldbus?
A: No. The H in the model number indicates HART only. Foundation Fieldbus support requires a model with F instead of H (e.g., TREX2CFPKLWS3) .
Q4: Is this device intrinsically safe?
A: Yes. The KL certification includes ATEX, CSA, and IECEx intrinsic safety approvals, suitable for Zone 1, Zone 2, Class I Division 1, and Division 2 hazardous areas .
Q5: What is the difference between TREX2 and the first-generation TREX?
A: The TREX2 features a quad-core processor, 64 GB flash memory, NIST-traceable mA measurement (with Plus module), and embedded Bluetooth. The first-generation TREX used an 800 MHz processor and 2 GB NAND flash .
Q6: What is included with the communicator?
A: 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
Choosing the Right Model
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For HART-only applications with basic module: The TREX2CHPKLWS3 is the correct choice for externally powered loops in hazardous areas .
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For HART applications requiring loop power and NIST-traceable measurement: Select a model with the L (Plus) module, such as TREX2LHPKLWS3 .
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For HART + FOUNDATION Fieldbus applications: Choose a model with F instead of H, such as TREX2CFPKLWS3 .
