SPXCDULNO1M
SPXCDULNO1M is the Sensepoint XCD Electrochemical (Surecell™) oxygen complete transmitter, default 0-25.0%Vol, 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 |
| O1 | oxygen,Electrochemical (Surecell™) | O1 |
| M | RS485 Modbus RTU | M |
Key specifications
| Target gas | O₂ / oxygen |
|---|---|
| Principle | Electrochemical (Surecell™) |
| Default range | 0-25.0%Vol |
| User FSD window | 25.0%Vol only |
| Resolution | 0.1%Vol |
| 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 SPXCDULNO1M 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 SPXCDULNO1M use M20 or NPT entries?
- SPXCDULNO1M entries are 2 × ¾″ NPT. Do not retap in the field; order the matching P/N.
- Does SPXCDULNO1M have a display?
- SPXCDULNO1M transmitter has a tri-colour backlight LCD. The cartridge itself has no display.
- How is SPXCDULNO1M mounted?
- Wall-mount SPXCDULNO1M on the one-piece plate with M8 bolts; pipe Ø40–80 mm uses SPXCDMTBR, duct SPXCDDMK. Glands must match 2 × ¾″ NPT.
- Can I magnetically calibrate SPXCDULNO1M without opening the lid?
- Use the S3KCAL wand on the SPXCDULNO1M lid calibration pad — non-intrusive. Recalibrate after a swap.
- How do I calibrate SPXCDULNO1M?
- Zero/span SPXCDULNO1M on the transmitter with certified gas and cap S3KCAL. Recalibrate after cartridge swap.
- How does SPXCDULNO1M differ from SPXCDUSNO1M?
- SPXCDULNO1M is complete kit (transmitter + cartridge), LM25 epoxy-coated aluminium (UL), 2 × ¾″ NPT, UL. SPXCDUSNO1M is the enclosure/approval/entry sibling.
- Can I fit a different-gas cartridge on SPXCDULNO1M?
- XCD auto-recognises the same family only. Do not mix an O₂ cell onto a flammable/toxic SPXCDULNO1M transmitter.
- Is SPXCDULNO1M aluminium or stainless?
- SPXCDULNO1M enclosure is LM25 epoxy-coated aluminium (UL). Aluminium is lighter; 316SS for salt/CIP. Sibling SPXCDUSNO1M.
- Who supplies SPXCDULNO1M and what should I quote?
- Supplied by authorized Honeywell distributor Beijing Dongfang Haitai (GZion). Quote full P/N SPXCDULNO1M. Not in stock — orders accepted; lead time approx. 10 weeks. Quote full P/N SPXCDULNO1M.
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 SPXCDULNO1M.