SPXCDALMB2 Carbon Dioxide Detector Honeywell Sensepoint Unit

Product Overview

The SPXCDALMB2 is an advanced ATEX/IECEx certified fixed infrared carbon dioxide (CO2) gas detector from the Sensepoint XCD series by Honeywell. Designed for hazardous industrial environments, this unit features an integrated infrared CO2 sensor scaled for 0-5.0% v/v monitoring, combined with robust LM25 aluminum alloy housing and M20 cable entry points.

Configuration and Architecture Matrix

• Part Number / Model: SPXCDALMB2 infrared gas detector system
• Product Family: Honeywell Analytics Sensepoint XCD hazardous area safety platform
• Certification Standard: ATEX / IECEx approved for explosive atmospheres
• Cable & Conduit Entries: Two (2) M20 metric entries compliant with European hazardous area standards
• Enclosure & Protection: Epoxy-painted LM25 aluminum housing with IP66 rating and nylon weatherproof cap

Technical Specifications Breakdown

• Brand & Manufacturer: Honeywell Analytics
• Sensor Technology: Infrared (IR) Carbon Dioxide (CO2) sensor measuring 0 to 5.0% v/v
• Operating Voltage: 12 to 32 VDC power supply range
• Power Consumption: 3.7 Watts maximum operational draw
• Current Loop Output: Sink or source 4-20 mA analog output signal
• Relay Configuration: Three (3) programmable form C relays rated for 5A at 250 VAC (selectable NO/NC)
• Thermal Operating Limits: -40°C to +65°C ambient temperature range

Fulfillment and Quality Assurance

• Logistics & Dispatch: Express global delivery facilitated through FedEx, UPS, and DHL within 24 to 48 hours.
• Warranty Terms: Covered by a comprehensive 12-month operational performance warranty.

Target Equipment and Application Scenarios

• Cellar gas monitoring and confined spaces in beverage bottling plants and breweries.
• Carbon dioxide storage farms, water treatment aeration basins, and inert gas blanketing enclosures.
• Oil and gas offshore platforms and chemical processing plants requiring ATEX-certified explosive zone protection.

Global PLC Spare HUB's Insight and Field Experience

Engineers at Global PLC Spare HUB note that optical path contamination on the SPXCDALMB2 infrared sensor optics will cause baseline drift and reduced CO2 sensitivity. When performing routine maintenance in dusty or condensing environments, inspect the weather cap and clean the optical window carefully. Furthermore, ensure that M20 cable glands are correctly torqued to maintain the unit's explosion-proof integrity and IP66 rating.

Frequently Asked Questions

Question: Why does the detector display a calibration fault after exposure to high concentrations of CO2?

Answer: Exposure exceeding the 5.0% v/v threshold can saturate the infrared sensor optics, requiring a zero and span recalibration using certified calibration gas mixtures.

Question: Can the M20 cable entries be adapted to standard NPT conduit fittings?

Answer: Yes, certified thread adapters can be installed into the M20 ports to accommodate NPT-threaded piping depending on local plant electrical codes.

Question: How does the infrared CO2 sensor differ from traditional electrochemical cells?

Answer: Infrared sensors measure gas concentration by analyzing light absorption wavelengths, eliminating the chemical consumption issues and short lifespans typical of electrochemical cells.

Question: What precautions are necessary when mounting this detector in outdoor freezing environments?

Answer: Ensure the housing is tilted slightly downward using the pipe mount kit to prevent moisture pooling around the M20 glands, which can freeze and compromise seal integrity.

Question: What purchasing strategy ensures compliance when replacing obsolete toxic gas monitors with CO2 units?

Answer: Verify that the control room DCS or PLC analog input card is configured to scale the 4-20mA loop accurately to the 0-5.0% v/v measurement span before commissioning.

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