Honeywell SPXCDULNRXM Transmitter

The Honeywell SPXCDULNRXM is a field-proven fixed gas detector designed for the rigorous demands of industrial methane monitoring. Engineered with a non-dispersive infrared (NDIR) sensor, this explosion-proof transmitter provides a 0-100% LEL detection range specifically calibrated for methane (CH4). The poison-immune infrared technology ensures stable operation in environments where traditional catalytic bead sensors might fail due to silicones or lead based contaminants. This 16 to 32 VDC unit features a robust epoxy-painted aluminum enclosure with IP66 ingress protection, making it suitable for both indoor and outdoor Class I, Div 1 hazardous locations.

For seamless systems integration, the SPXCDULNRXM includes a 4-20mA output (selectable sink or source) and Modbus RTU digital communications. The hardware is equipped with three programmable 5A relays for direct control of alarms or fans. Contractors can perform non-intrusive calibration using the included magnetic wand, navigating the tri-color backlit LCD without opening the enclosure or requiring a hot-work permit. This industrial methane sensor utilizes 3/4" NPT entries for standard North American conduit runs, ensuring a reliable, code-compliant installation in any facility requiring high-performance combustible gas monitoring.

• Enhanced Reliability: Utilizes a methane IR sensor that is immune to sensor poisoning, extending the operational life in harsh chemical environments.
• Simplified Maintenance: Features a tri-color backlit display (Green/Yellow/Red) for instant status checks and one-man calibration via magnetic switches.
• Versatile Integration: Supports Modbus RS485 and 4-20mA current loop signals for easy connection to PLCs and building automation systems.
• Rugged Construction: Built with a marine-grade aluminum enclosure and rated for temperatures from -40°F to +149°F.

How does this methane gas transmitter handle sensor replacement?
The unit uses a plug-in sensor cartridge system. The transmitter automatically recognizes the sensor type and range upon installation, minimizing downtime and simplifying the inventory of spares.

Can the Honeywell Sensepoint XCD be configured without opening the housing?
Yes. All settings, including alarm setpoints and relay logic, are adjusted using the magnetic wand through the glass window, maintaining the explosion-proof seal during routine service.

What wiring configuration is required for the SPXCDULNRXM?
It is a 3-wire device that supports 24 VDC nominal power. The 4-20mA output can be switched between sink and source via an internal jumper to match your controller's input requirements.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.