SPXCDULNB2
SPXCDULNB2 is the Sensepoint XCD Infrared (dual-beam) carbon dioxide 5%vol complete transmitter, default 0-5.00%Vol, LM25 epoxy-coated aluminium (UL), 2 × ¾″ NPT, UL.
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 |
| B2 | carbon dioxide 5%vol，Infrared (dual-beam) | B2 |
Key specifications
| Target gas | CO₂ / carbon dioxide 5%vol |
|---|---|
| Principle | Infrared (dual-beam) |
| Default range | 0-5.00%Vol |
| User FSD window | 0-5%VOL only |
| Resolution | n/a |
| Output | 4–20 mA sink/source + optional 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 SPXCDULNB2 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 sensor life should I plan for SPXCDULNB2?
- Plan SPXCDULNB2 sensor life by principle: IR ~5 years. Replace the cartridge and recalibrate.
- Does SPXCDULNB2 have a display?
- SPXCDULNB2 transmitter has a tri-colour backlight LCD. The cartridge itself has no display.
- Can I hot-swap SPXCDULNB2 live?
- Do not hot-swap live. De-energise first; live swap damages pins and the flameproof joint.
- How is SPXCDULNB2 mounted?
- Wall-mount SPXCDULNB2 on the one-piece plate with M8 bolts; pipe Ø40–80 mm uses SPXCDMTBR, duct SPXCDDMK. Glands must match 2 × ¾″ NPT.
- What supply voltage does SPXCDULNB2 need?
- SPXCDULNB2 supply is 12–32 VDC (24 VDC nominal). A cartridge is not separately powered.
- Who supplies SPXCDULNB2 and what should I quote?
- Supplied by authorized Honeywell distributor Beijing Dongfang Haitai (GZion). Quote full P/N SPXCDULNB2. Not in stock — orders accepted; lead time approx. 10 weeks. Quote full P/N SPXCDULNB2.
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 SPXCDULNB2.