Description
HONEYWELL SPXCDULNTXF Flammable Gas Detector
Product Dimensions:
The Honeywell SPXCDULNTXF is a member of the Sensepoint XCD (Exceed) series. It is a flameproof (explosion-proof) gas transmitter designed to provide comprehensive monitoring of toxic and oxygen gas hazards in potentially explosive atmospheres, both indoors and outdoors.
This specific model features a 3-color backlit LCD display that provides instant visual confirmation of the device’s status, even from a distance.
Technical Specifications (Product Parameters)
| Feature | Specification |
| Model Number | SPXCDULNTXF |
| Gas Type | Toxic Gases and Oxygen ($O_2$) |
| Material | Epoxy-painted Aluminum Alloy (LM25) |
| Entry Type | 3 x 3/4” NPT |
| Display | 3-color backlit LCD (Green: Normal, Amber: Fault, Red: Alarm) |
| Output Signal | 4-20mA (Source or Sink) and RS485 Modbus |
| Relays | 3 x Programmable (2 Alarm, 1 Fault) |
| Operating Voltage | 16 to 30 VDC (24VDC nominal) |
| IP Rating | IP66 per EN60529 |
| Certification | UL Class I, Div 1 & 2, Groups B, C, D (Explosion-proof) |
| Operating Temp | -40°C to +65°C (-40°F to +149°F) |
Key Product Advantages
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All-in-One Platform: The XCD transmitter works with a wide range of plug-in sensors, reducing the need for multiple transmitter types and simplifying spare parts management.
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Non-Intrusive Operation: Using a magnetic wand, users can perform all routine maintenance (calibration, configuration) without opening the housing. This prevents the need for a “hot work permit” in hazardous areas.
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Tri-Color Visual Status: * Green: System is healthy and operating normally.
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Yellow: Fault/Warning detected.
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Red: Gas concentration has exceeded alarm setpoints.
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Reliable Performance: High-performance electrochemical sensors provide long-term stability and fast response times even in harsh environments.
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Global Compliance: Meets international standards (UL, INMETRO, ATEX/IECEx) for use in hazardous locations.
Product Applications
The SPXCDULNTXF is widely used in industrial settings where toxic gas leaks or oxygen depletion are risks:
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Oil & Gas: Refineries, onshore/offshore drilling rigs, and processing plants.
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Chemical Plants: Monitoring for toxic byproducts or leaks during chemical synthesis.
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Water Treatment: Detection of Chlorine ($Cl_2$) or Hydrogen Sulfide ($H_2S$).
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Manufacturing: Facilities using industrial gases for production or cooling.
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Power Generation: Monitoring battery rooms for hydrogen or gas turbine enclosures.
Important Considerations & Maintenance
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Sensor Lifespan: While the transmitter is durable, the electrochemical sensors have a finite life (typically 2+ years). They must be replaced periodically to ensure accuracy.
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Calibration: Regular “Bump Tests” and full calibrations are required per local safety regulations to ensure the device responds correctly to gas.
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Mounting Position: Ensure the device is mounted at a height appropriate for the target gas (e.g., higher for gases lighter than air, lower for those heavier than air).
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Environmental Obstructions: Do not paint the sensor face or allow dust/grease to clog the weather protection, as this will prevent gas from reaching the sensor.
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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