SPXCDULNTXTM
SPXCDULNTXTM is the Sensepoint XCD toxic transmitter (no cartridge) — no sensor cartridge included. LM25 epoxy-coated aluminium (UL), 2 × ¾″ NPT, UL. Order a same-family SPXCDXS*SS separately. 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 |
| TXT | toxic transmitter (no cartridge),Transmitter only (no cartridge) | TXT |
| M | RS485 Modbus RTU | M |
Key specifications
| Type | Transmitter |
|---|---|
| Family | toxic transmitter (no cartridge) |
| Not included | Sensor cartridge (order SPXCDXS*SS) |
| 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 SPXCDULNTXTM 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
- Is SPXCDULNTXTM ATEX or UL certified?
- SPXCDULNTXTM is the UL scheme. Do not use it as the other system.
- Does SPXCDULNTXTM need weather protection?
- Outdoors, fit SPXCDWP weather protection on SPXCDULNTXTM with the sinter down.
- What gas and range does SPXCDULNTXTM cover?
- SPXCDULNTXTM measures toxic transmitter (no cartridge) at default — (user window —). Principle: Transmitter only (no cartridge).
- How is SPXCDULNTXTM mounted?
- Wall-mount SPXCDULNTXTM on the one-piece plate with M8 bolts; pipe Ø40–80 mm uses SPXCDMTBR, duct SPXCDDMK. Glands must match 2 × ¾″ NPT.
- Can I fit a different-gas cartridge on SPXCDULNTXTM?
- XCD auto-recognises the same family only. Do not mix an O₂ cell onto a flammable/toxic SPXCDULNTXTM transmitter.
- Is SPXCDULNTXTM a complete kit, transmitter-only, or cartridge?
- SPXCDULNTXTM is transmitter only (no sensor cartridge).
- What sensor life should I plan for SPXCDULNTXTM?
- Plan SPXCDULNTXTM sensor life by principle: depends on the fitted cartridge. Replace the cartridge and recalibrate.
- Is the safety function on SPXCDULNTXTM the relays or 4–20 mA?
- On SPXCDULNTXTM the only EN performance safety function is 4–20 mA. Relays and Modbus are not SIL/performance-certified.
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 SPXCDULNTXTM.