SPXCDASMCXM
SPXCDASMCXM is the Sensepoint XCD Electrochemical (Surecell™) carbon monoxide complete transmitter, default 0-300ppm, 316 stainless steel, 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 | S |
| M / N | Entry M=M20; N=3/4″ NPT | M |
| CX | carbon monoxide,Electrochemical (Surecell™) | CX |
| M | RS485 Modbus RTU | M |
Key specifications
| Target gas | CO / carbon monoxide |
|---|---|
| Principle | Electrochemical (Surecell™) |
| Default range | 0-300ppm |
| User FSD window | 100–1000ppm |
| Resolution | 100ppm |
| Output | 4–20 mA sink/source + Modbus RTU |
| Supply | 16–32 VDC (24 VDC nominal) |
| Power | 3.7 W |
| Enclosure | 316 stainless steel |
| Entries | 2 × M20 |
| Display | Tri-colour backlight LCD |
| Relays | 3×5A@250VAC |
| Ingress | IP66 |
| Approvals | ATEX / IECEx / GB |
| Temperature | −40~+65 ℃ |
| Mass | approx. 3.7 kg |
Why this principle
Fixed-point leak monitoring into a controller/ESD on 4–20 mA.
Typical applications
Fixed-point leak monitoring into a controller/ESD on 4–20 mA. Magnetic bump test without a hot-work permit.
Installation
Wall-mount SPXCDASMCXM 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
- Which accessories go with SPXCDASMCXM?
- With SPXCDASMCXM people order S3KCAL, magnet SPXCDMAG, weather cap SPXCDWP, pipe kit SPXCDMTBR, duct SPXCDDMK.
- What temperature rating does SPXCDASMCXM have?
- SPXCDASMCXM certified −40 to +65 °C (T6); some T-class to +75 °C.
- Is SPXCDASMCXM aluminium or stainless?
- SPXCDASMCXM enclosure is 316 stainless steel. Aluminium is lighter; 316SS for salt/CIP. Sibling SPXCDALMCXM.
- Does SPXCDASMCXM use M20 or NPT entries?
- SPXCDASMCXM entries are 2 × M20. Do not retap in the field; order the matching P/N.
- Does SPXCDASMCXM provide 4–20 mA?
- SPXCDASMCXM outputs 4–20 mA (source/sink). 4–20 mA is the only EN performance safety function.
- Can I retap SPXCDASMCXM from M20 to NPT?
- No. SPXCDASMCXM flameproof entries are machined 2 × M20. Order the matching P/N for the other thread.
- How do I calibrate SPXCDASMCXM?
- Zero/span SPXCDASMCXM on the transmitter with certified gas and cap S3KCAL. Recalibrate after cartridge swap.
- Is the safety function on SPXCDASMCXM the relays or 4–20 mA?
- On SPXCDASMCXM the only EN performance safety function is 4–20 mA. Relays and Modbus are not SIL/performance-certified.
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 SPXCDASMCXM.