Honeywell SPXCDULNFX Flammable Gas Detector

Product Description

Honeywell SPXCDULNFX is an explosion-proof fixed flammable gas detector of Sensepoint XCD series, fitted with catalytic bead sensor, measuring range 0~100%LEL for continuous monitoring of combustible gas concentration in hazardous areas. It adopts Ex d flameproof aluminum housing with IP66 protection and tri-color backlit LCD display. Non-intrusive configuration by magnetic wand without opening the enclosure. Equipped with 4-20mA analog output, Modbus RTU communication, 2 alarm relays plus 1 fault relay. Suitable for indoor and outdoor installation in Zone 1 explosive atmospheres. Widely deployed for gas safety monitoring in oil, gas and chemical industries.

Specifications

1. Model: SPXCDULNFX (Sensepoint XCD)
2. Sensor Type: Catalytic bead sensor for flammable gas
3. Measuring Range: 0~100%LEL, full scale adjustable from 20 to 100%LEL
4. Power Supply: 16~32VDC, nominal 24VDC
5. Signal Output: 4-20mA (Sink/Source selectable); Modbus RTU (RS485)
6. Relays: 2 programmable alarm relays, 1 programmable fault relay
7. Housing: Painted marine-grade aluminium; 2 × 3/4″ NPT cable entries
8. Ingress Protection: IP66
9. Operating Temp: -40℃ ~ +65℃; Humidity 0~90%RH non-condensing
10. Certifications: ATEX, IECEx, UL/c-UL, INMETRO
11. Display: Tri-color backlit LCD, green=normal, yellow=fault, red=alarm; magnetic wand non-intrusive setup
12. Explosion Protection: Ex d, for Zone1 / Zone2 hazardous locations

Applications

• Industries: Oil & gas, chemical, refinery, wastewater, pharmaceutical, tank farm, boiler house
• Target Gas: Methane, propane, hydrogen and other hydrocarbon flammable gases
• Use Cases: Online leak detection of combustible gas in explosive hazardous areas, local concentration indication, interlock with sounder/beacon/shut-off valve; integration with PLC/DCS/gas controller; new plant installation, legacy gas detection retrofit, explosion safety monitoring.

Family Models (Sensepoint XCD Series)

1. SPXCDALMG1: Oxygen gas detector, electrochemical sensor
2. SPXCDALMRX: Toxic gas detector (H₂S/CO)
3. SPXCDULNHX: IR type flammable gas detector
4. SPXCDXSHXSS: Stainless steel housing XCD flammable detector
5. SPXCDALMTXT: Multi toxic gas variants