SPXCDALMFXM
SPXCDALMFXM is the Sensepoint XCD Catalytic bead (poison-resistant) flammable gas (catalytic) complete transmitter, default 0-100%LEL, LM25 epoxy-coated aluminium, 2 × M20, ATEX / IECEx / GB. RS485 Modbus RTU.
Part-number matrix
| Segment | Meaning | This SKU |
|---|---|---|
| SPXCD | Sensepoint XCD series | SPXCD |
| A / U | Approval A=ATEX/IECEx/GB; U=UL | A |
| L / S | Enclosure L=LM25 aluminium; S=316SS | L |
| M / N | Entry M=M20; N=3/4″ NPT | M |
| FX | flammable gas (catalytic)，Catalytic bead (poison-resistant) | FX |
| M | RS485 Modbus RTU | M |
Key specifications
| Target gas | LEL / flammable gas (catalytic) |
|---|---|
| Principle | Catalytic bead (poison-resistant) |
| Default range | 0-100%LEL |
| User FSD window | 20.0–100.0%LEL |
| Resolution | 10%LEL |
| Output | 4–20 mA sink/source + Modbus RTU |
| Supply | 16–32 VDC (24 VDC nominal) |
| Power | 4.9 W |
| Enclosure | LM25 epoxy-coated aluminium |
| Entries | 2 × M20 |
| Display | Tri-colour backlight LCD |
| Relays | 3×5A@250VAC |
| Ingress | IP66 |
| Approvals | ATEX / IECEx / GB |
| Temperature | −40~+65 ℃ |
| Mass | approx. 1.7 kg |
Why this principle
A poison-resistant pellistor sees the heat of combustion and therefore works on a wide hydrocarbon mix, including species IR filters miss. It is not a toxic detector.
Typical applications
Pump rooms, filling gantries and compressor packages still standardise on catalytic LEL.
Installation
Wall-mount SPXCDALMFXM through the one-piece plate with M8 bolts. Entries 2 × M20 — glands must match. Land 4–20 mA as three-wire. Magnetic wand calibration stays non-intrusive.
FAQ
- Can I hot-swap SPXCDALMFXM live?
- Do not hot-swap live. De-energise first; live swap damages pins and the flameproof joint.
- Can I fit a different-gas cartridge on SPXCDALMFXM?
- XCD auto-recognises the same family only. Do not mix an O₂ cell onto a flammable/toxic SPXCDALMFXM transmitter.
- Is the safety function on SPXCDALMFXM the relays or 4–20 mA?
- On SPXCDALMFXM the only EN performance safety function is 4–20 mA. Relays and Modbus are not SIL/performance-certified.
- Which accessories go with SPXCDALMFXM?
- With SPXCDALMFXM people order S3KCAL, magnet SPXCDMAG, weather cap SPXCDWP, pipe kit SPXCDMTBR, duct SPXCDDMK.
- Who supplies SPXCDALMFXM and what should I quote?
- Supplied by authorized Honeywell distributor Beijing Dongfang Haitai (GZion). Quote full P/N SPXCDALMFXM. Not in stock — orders accepted; lead time approx. 10 weeks. Quote full P/N SPXCDALMFXM.
- What sensor life should I plan for SPXCDALMFXM?
- Plan SPXCDALMFXM sensor life by principle: catalytic ~36 months. Replace the cartridge and recalibrate.
- Does SPXCDALMFXM provide 4–20 mA?
- SPXCDALMFXM outputs 4–20 mA (source/sink). 4–20 mA is the only EN performance safety function.
Downloads
Honeywell official technical manual and certificates are available from GZion as PDF.
Availability and enquiry
Availability:Not in stock — orders accepted; lead time approx. 10 weeks. Quote full P/N SPXCDALMFXM.