SPXCDALMRX
SPXCDALMRX is the Sensepoint XCD Infrared (dual-beam) methane complete transmitter, default 0-100%LEL, LM25 epoxy-coated aluminium, 2 × M20, ATEX / IECEx / GB.
Part-number matrix
| Segment | Meaning | This SKU |
|---|---|---|
| SPXCD | Sensepoint XCD series | SPXCD |
| A / U | Approval A=ATEX/IECEx/GB; U=UL | A |
| L / S | Enclosure L=LM25 aluminium; S=316SS | L |
| M / N | Entry M=M20; N=3/4″ NPT | M |
| RX | methane，Infrared (dual-beam) | RX |
Key specifications
| Target gas | CH₄ / methane |
|---|---|
| Principle | Infrared (dual-beam) |
| Default range | 0-100%LEL |
| User FSD window | 20.0–100.0%LEL |
| Resolution | 10%LEL |
| Output | 4–20 mA sink/source + optional Modbus RTU |
| Supply | 16–32 VDC (24 VDC nominal) |
| Power | 3.7 W |
| Enclosure | LM25 epoxy-coated aluminium |
| Entries | 2 × M20 |
| Display | Tri-colour backlight LCD |
| Relays | 3×5A@250VAC |
| Ingress | IP66 |
| Approvals | ATEX / IECEx / GB |
| Temperature | −40~+65 ℃ |
| Mass | approx. 1.7 kg |
Why this principle
Dual-beam IR sees methane’s absorption band, resists catalytic poisons and works in inert atmospheres.
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 SPXCDALMRX through the one-piece plate with M8 bolts. Entries 2 × M20 — glands must match. Land 4–20 mA as three-wire. Magnetic wand calibration stays non-intrusive.
FAQ
- Can I hot-swap SPXCDALMRX live?
- Do not hot-swap live. De-energise first; live swap damages pins and the flameproof joint.
- Can I magnetically calibrate SPXCDALMRX without opening the lid?
- Use the S3KCAL wand on the SPXCDALMRX lid calibration pad — non-intrusive. Recalibrate after a swap.
- What temperature rating does SPXCDALMRX have?
- SPXCDALMRX certified −40 to +65 °C (T6); some T-class to +75 °C.
- What sensor life should I plan for SPXCDALMRX?
- Plan SPXCDALMRX sensor life by principle: IR ~5 years. Replace the cartridge and recalibrate.
- What gas and range does SPXCDALMRX cover?
- SPXCDALMRX measures methane at default 0-100%LEL (user window 20.0–100.0%LEL). Principle: Infrared (dual-beam).
- How do I calibrate SPXCDALMRX?
- Zero/span SPXCDALMRX on the transmitter with certified gas and cap S3KCAL. Recalibrate after cartridge swap.
- Can I fit a different-gas cartridge on SPXCDALMRX?
- XCD auto-recognises the same family only. Do not mix an O₂ cell onto a flammable/toxic SPXCDALMRX transmitter.
- Does SPXCDALMRX have a display?
- SPXCDALMRX transmitter has a tri-colour backlight LCD. The cartridge itself has no display.
Downloads
Honeywell official technical manual and certificates are available from GZion as PDF.
Availability and enquiry
Availability:In stock. Quote full P/N SPXCDALMRX.