Honeywell SPXCDALMRX Gas Detection

Honeywell SPXCDALMRX Gas Detection

Honeywell SPXCDALMRX (full name: Sensepoint XCD) is a fixed explosion-proof infrared methane (CH₄) gas detector manufactured by Honeywell, designed for monitoring flammable gas leaks in hazardous areas.

1. Core Specifications

Series: Sensepoint XCD Industrial Fixed Gas Detection Series

Model: SPXCDALMRX

Target Gas: Methane (CH₄), using infrared (IR) sensing technology

Measuring Range: 0 ~ 100% LEL (Lower Explosive Limit, customizable between 20%–100% LEL)

Application: Oil, petrochemical, oil & gas fields, wastewater treatment plants and other Zone 1/Zone 2 hazardous areas with methane leakage risks

2. Key Features

Sensing Technology

Infrared (IR) principle: Resists sensor poisoning, long service life, unaffected by high-concentration gas impacts

Plug-and-play: Hot-swappable sensor module with automatic identification and configuration

Operation & Display

Tri-color backlit LCD: Green (normal), Amber (fault), Red (alarm)

Non-intrusive operation: Settings via magnetic wand without opening the cover for explosion-proof safety

Signals & Communication

4–20 mA analog output (source/sink selectable)

Modbus RTU (RS485) digital communication

3 relays: 2 alarm + 1 fault (5A @ 250VAC)

Protection & Approvals

Housing: Epoxy-coated aluminum alloy (LM25)

Ingress Protection: IP66 (dust-tight, jet water resistant)

Operating Temperature: -40°C ~ +65°C

International Certifications: ATEX, IECEx, UL, CSA, CCCF (China explosion-proof)

3. Electrical & Physical Parameters

Power Supply: 16 ~ 32 VDC (standard 24 VDC)

Weight: Approx. 2.0 kg

Conduit Entries: 2 × M20

Dimensions: 225 × 164 × 99 mm

4. Model Definition (SPXCDALMRX)

SP: Sensepoint

XCD: Product series

ALM: Aluminum housing, M20 connections

R: Infrared (IR) sensor

X: General purpose

RX: Methane (CH₄) 0–100% LEL

5. Main Advanages

High reliability: IR sensor eliminates poisoning issues common with catalytic elements

Easy maintenance: Non-intrusive calibration, plug-in replaceable sensor

System compatibility: Standard signals + Modbus for easy integration with DCS/PLC systems

Global certifications: Compliant with hazardous area standards worldwide