SPXCDASMNXM
SPXCDASMNXM is the Sensepoint XCD Electrochemical (Surecell™) nitrogen dioxide complete transmitter, default 10-50ppm, 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 |
| NX | nitrogen dioxide,Electrochemical (Surecell™) | NX |
| M | RS485 Modbus RTU | M |
Key specifications
| Target gas | NO₂ / nitrogen dioxide |
|---|---|
| Principle | Electrochemical (Surecell™) |
| Default range | 10-50ppm |
| User FSD window | 10.0–50.0ppm |
| Resolution | 5ppm |
| 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 SPXCDASMNXM 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
- How much does SPXCDASMNXM weigh?
- SPXCDASMNXM approx. 3.7 kg (trust the nameplate).
- Is the safety function on SPXCDASMNXM the relays or 4–20 mA?
- On SPXCDASMNXM the only EN performance safety function is 4–20 mA. Relays and Modbus are not SIL/performance-certified.
- Is SPXCDASMNXM aluminium or stainless?
- SPXCDASMNXM enclosure is 316 stainless steel. Aluminium is lighter; 316SS for salt/CIP. Sibling SPXCDALMNXM.
- Can I retap SPXCDASMNXM from M20 to NPT?
- No. SPXCDASMNXM flameproof entries are machined 2 × M20. Order the matching P/N for the other thread.
- What is SPXCDASMNXM?
- SPXCDASMNXM is a Honeywell Sensepoint XCD complete kit (transmitter + cartridge): nitrogen dioxide, 316 stainless steel, entries 2 × M20, approval ATEX / IECEx / GB. Not in stock — orders accepted; lead time approx. 10 weeks. Quote full P/N SPXCDASMNXM.
- What supply voltage does SPXCDASMNXM need?
- SPXCDASMNXM supply is 16–32 VDC (24 VDC nominal). A cartridge is not separately powered.
- Does SPXCDASMNXM provide 4–20 mA?
- SPXCDASMNXM outputs 4–20 mA (source/sink). 4–20 mA is the only EN performance safety function.
- How is SPXCDASMNXM mounted?
- Wall-mount SPXCDASMNXM on the one-piece plate with M8 bolts; pipe Ø40–80 mm uses SPXCDMTBR, duct SPXCDDMK. Glands must match 2 × M20.
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 SPXCDASMNXM.