SPXCDUSNNXM
SPXCDUSNNXM is the Sensepoint XCD Electrochemical (Surecell™) nitrogen dioxide complete transmitter, default 10-50ppm, 316 stainless steel (UL), 2 × ¾″ NPT, UL. RS485 Modbus RTU.
Part-number matrix
| Segment | Meaning | This SKU |
|---|---|---|
| SPXCD | Sensepoint XCD series | SPXCD |
| A / U | Approval A=ATEX/IECEx/GB; U=UL | U |
| L / S | Enclosure L=LM25 aluminium; S=316SS | S |
| M / N | Entry M=M20; N=3/4″ NPT | N |
| 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 | 12–32 VDC (24 VDC nominal) |
| Power | 3.7 W |
| Enclosure | 316 stainless steel (UL) |
| Entries | 2 × ¾″ NPT |
| Display | Tri-colour backlight LCD |
| Relays | 3×5A@250VAC |
| Ingress | IP66 |
| Approvals | UL |
| 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 SPXCDUSNNXM through the one-piece plate with M8 bolts. Entries 2 × ¾″ NPT — glands must match. Land 4–20 mA as three-wire. Magnetic wand calibration stays non-intrusive.
FAQ
- Does SPXCDUSNNXM have relays?
- SPXCDUSNNXM has three relays 5 A @ 250 VAC. Relays are not the EN performance safety function.
- Does SPXCDUSNNXM need weather protection?
- Outdoors, fit SPXCDWP weather protection on SPXCDUSNNXM with the sinter down.
- Does SPXCDUSNNXM carry a China / GB certificate?
- SPXCDUSNNXM literature states GB Ex d IIC T4 (GB3836); no standalone CNEx serial is published here.
- Does SPXCDUSNNXM provide 4–20 mA?
- SPXCDUSNNXM outputs 4–20 mA (source/sink). 4–20 mA is the only EN performance safety function.
- Can I fit a different-gas cartridge on SPXCDUSNNXM?
- XCD auto-recognises the same family only. Do not mix an O₂ cell onto a flammable/toxic SPXCDUSNNXM transmitter.
- Which accessories go with SPXCDUSNNXM?
- With SPXCDUSNNXM people order S3KCAL, magnet SPXCDMAG, weather cap SPXCDWP, pipe kit SPXCDMTBR, duct SPXCDDMK.
- Can I hot-swap SPXCDUSNNXM live?
- Do not hot-swap live. De-energise first; live swap damages pins and the flameproof joint.
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 SPXCDUSNNXM.