SPXCDULNNXM
SPXCDULNNXM is the Sensepoint XCD Electrochemical (Surecell™) nitrogen dioxide complete transmitter, default 10-50ppm, LM25 epoxy-coated aluminium (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 | L |
| 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 | LM25 epoxy-coated aluminium (UL) |
| Entries | 2 × ¾″ NPT |
| Display | Tri-colour backlight LCD |
| Relays | 3×5A@250VAC |
| Ingress | IP66 |
| Approvals | UL |
| Temperature | −40~+65 ℃ |
| Mass | approx. 1.7 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 SPXCDULNNXM 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
- What gas and range does SPXCDULNNXM cover?
- SPXCDULNNXM measures nitrogen dioxide at default 10-50ppm (user window 10.0–50.0ppm). Principle: Electrochemical (Surecell™).
- Is the safety function on SPXCDULNNXM the relays or 4–20 mA?
- On SPXCDULNNXM the only EN performance safety function is 4–20 mA. Relays and Modbus are not SIL/performance-certified.
- Does SPXCDULNNXM have a display?
- SPXCDULNNXM transmitter has a tri-colour backlight LCD. The cartridge itself has no display.
- Can I hot-swap SPXCDULNNXM live?
- Do not hot-swap live. De-energise first; live swap damages pins and the flameproof joint.
- How much does SPXCDULNNXM weigh?
- SPXCDULNNXM approx. 1.7 kg (trust the nameplate).
- What is SPXCDULNNXM?
- SPXCDULNNXM is a Honeywell Sensepoint XCD complete kit (transmitter + cartridge): nitrogen dioxide, LM25 epoxy-coated aluminium (UL), entries 2 × ¾″ NPT, approval UL. Not in stock — orders accepted; lead time approx. 10 weeks. Quote full P/N SPXCDULNNXM.
- What temperature rating does SPXCDULNNXM have?
- SPXCDULNNXM certified −40 to +65 °C (T6); some T-class to +75 °C.
- Can I retap SPXCDULNNXM from M20 to NPT?
- No. SPXCDULNNXM flameproof entries are machined 2 × ¾″ NPT. Order the matching P/N for the other thread.
- Who supplies SPXCDULNNXM and what should I quote?
- Supplied by authorized Honeywell distributor Beijing Dongfang Haitai (GZion). Quote full P/N SPXCDULNNXM. Not in stock — orders accepted; lead time approx. 10 weeks. Quote full P/N SPXCDULNNXM.
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 SPXCDULNNXM.