Emerson TREXLHPNAWS1S Device Communicator Plus | Replacement, Equivalent & Selection Guide
The Emerson TREXLHPNAWS1S is a wireless-enabled Device Communicator Plus designed for HART and FOUNDATION Fieldbus instrument configuration, diagnostics, and commissioning in industrial automation environments. This page provides full technical specifications, compatible replacement models, and a structured selection guide to help engineers and procurement teams make informed sourcing decisions.
Technical Specifications
- Part Number / SKU: TREXLHPNAWS1S
- Brand / Manufacturer: Emerson
- Series: Trex Device Communicator Plus
- Communication Protocols: HART (5/6/7), FOUNDATION Fieldbus (FF H1)
- Wireless Capability: Wi-Fi enabled (AWS1 module included)
- Display: High-resolution color touchscreen
- Operating System: Android-based platform
- Battery: Rechargeable Li-ion, hot-swappable
- Ingress Protection: IP54 (dust and splash resistant)
- Hazardous Area Rating: Intrinsically Safe (IS) – Zone 1 / Division 1
- Operating Temperature: -20°C to +50°C
- Weight: Approx. 1,330 g (with battery)
- Condition: New / Genuine OEM
Compatible Replacement & Equivalent Models
The following models are commonly evaluated as replacements or equivalents for the TREXLHPNAWS1S. Compatibility depends on protocol requirements, hazardous area classification, and software version. Always verify with your instrument vendor before substitution.
| Model | Brand | Protocol | Wireless | Notes |
|---|---|---|---|---|
| TREXLHPNA | Emerson | HART / FF | No | Base model without wireless; direct predecessor |
| TREXLHPNAWS1 | Emerson | HART / FF | Yes | Earlier wireless variant; functionally similar |
| 475-HART-LFCN | Emerson (475) | HART | No | Legacy 475 Field Communicator; older platform |
| SFC162 | Siemens | HART | No | Cross-brand HART communicator; limited DD library |
| FC375 / FC475 | Yokogawa | HART | No | Alternative for HART-only applications |
| MC608 | Meriam | HART | No | Budget alternative; reduced feature set |
Note: Third-party replacements may not support all Device Descriptions (DDs) or AMS Device Manager integration. Confirm DD library coverage before procurement.
Why Choose the Original TREXLHPNAWS1S
- Full DD/EDD Library: Access to Emerson’s complete Device Description library covering 99%+ of HART and FF instruments
- AMS Device Manager Integration: Seamless sync with Emerson AMS Suite for asset management and predictive maintenance
- Wireless Connectivity: Built-in Wi-Fi for remote configuration, software updates, and data transfer
- Intrinsic Safety Certification: Certified for Zone 1 / Div 1 hazardous areas without additional barriers
- Touchscreen UX: Intuitive Android-based interface reduces training time and configuration errors
- Long-term Support: Ongoing firmware updates and expanded DD support from Emerson
Typical Applications
- HART transmitter configuration and loop testing (pressure, temperature, flow, level)
- FOUNDATION Fieldbus segment commissioning and diagnostics
- Valve positioner calibration (Fisher, Metso, Flowserve)
- Predictive maintenance and instrument health monitoring
- SIS instrument verification and proof testing
- Remote wireless configuration in hazardous process areas (oil & gas, chemical, refining)
System Compatibility
- DCS / Asset Management: Emerson DeltaV, Ovation, AMS Device Manager
- HART Instruments: Compatible with all HART 5, 6, and 7 devices
- Fieldbus Segments: FOUNDATION Fieldbus H1 segments
- Software Updates: Via Wi-Fi or USB through Emerson update portal
- Third-party Instruments: Supported via standard HART DD; custom DDs may require separate installation
Selection Guide
| Requirement | Recommended Model |
|---|---|
| HART only, no wireless needed | TREXLHPNA (base model) |
| HART + FF + wireless required | TREXLHPNAWS1S ✓ |
| Hazardous area (Zone 1 / Div 1) | TREXLHPNAWS1S ✓ |
| AMS Device Manager integration | TREXLHPNAWS1S ✓ |
| Budget-constrained, HART only | MC608 or SFC162 (third-party) |
| Legacy 475 replacement | TREXLHPNA or TREXLHPNAWS1S |
Quality Assurance & Sourcing
- Condition: New, genuine OEM – not refurbished or counterfeit
- Sourcing: Procured through authorized industrial distribution channels
- Inspection: Each unit inspected for physical integrity and label authenticity prior to shipment
- Warranty: Manufacturer warranty applies; contact us for details
- Lead Time: Typically ships within 3–7 business days; expedited options available
How to Order
- Confirm your required model: TREXLHPNAWS1S
- Verify hazardous area classification and protocol requirements (HART / FF)
- Add to cart or contact us for volume pricing and availability
- Provide shipping address and preferred freight method at checkout
- For purchase orders (PO), email support@konmask.com with your PO document
📦 Ships from: China | 🌍 Ships to: Worldwide | ✅ Export documentation available upon request
Replacement & Compatibility FAQ
Q: Can the TREXLHPNAWS1S replace the Emerson 475 Field Communicator?
A: Yes. The Trex Device Communicator Plus is the designated successor to the 475 platform, offering expanded DD support, wireless connectivity, and a modern touchscreen interface.
Q: Is the TREXLHPNAWS1S compatible with non-Emerson HART instruments?
A: Yes, it supports all standard HART 5/6/7 devices. For instruments with proprietary DDs, the relevant DD file must be installed separately.
Q: What does “AWS1S” mean in the part number?
A: “AWS1” indicates the wireless (Wi-Fi) module is included; “S” denotes the intrinsically safe (IS) certification variant.
Q: Can I use this communicator in a Zone 1 hazardous area?
A: Yes. The TREXLHPNAWS1S carries intrinsic safety (IS) certification for Zone 1 / Division 1 hazardous locations.
Q: Does Konmask.com offer calibration or configuration services?
A: We supply hardware only. For calibration services, please consult a certified instrumentation service provider in your region.
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