SPXCDASMG1M
SPXCDASMG1M is the Sensepoint XCD Electrochemical (Surecell™) hydrogen complete transmitter, default 0-1000ppm, 316 stainless steel, 2 × M20, ATEX / IECEx / GB. RS485 Modbus RTU.

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 | S |
| M / N | Entry M=M20; N=3/4″ NPT | M |
| G1 | hydrogen,Electrochemical (Surecell™) | G1 |
| M | RS485 Modbus RTU | M |
Key specifications
| Target gas | H₂ / hydrogen |
|---|---|
| Principle | Electrochemical (Surecell™) |
| Default range | 0-1000ppm |
| User FSD window | 0-1000ppm only |
| Resolution | n/a |
| Output | 4–20 mA sink/source + Modbus RTU |
| Supply | 16–32 VDC (24 VDC nominal) |
| Power | 3.7 W |
| Enclosure | 316 stainless steel |
| Entries | 2 × M20 |
| Display | Tri-colour backlight LCD |
| Relays | 3×5A@250VAC |
| Ingress | IP66 |
| Approvals | ATEX / IECEx / GB |
| Temperature | −40~+65 ℃ |
| Mass | approx. 3.7 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 SPXCDASMG1M 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
- What sensor life should I plan for SPXCDASMG1M?
- Plan SPXCDASMG1M sensor life by principle: electrochemical/O₂ ≥24 months. Replace the cartridge and recalibrate.
- Which cartridge or transmitter pairs with SPXCDASMG1M?
- Same gas code. Cartridge SPXCDXSG1SS; transmitter needs the same family.
- Does SPXCDASMG1M have relays?
- SPXCDASMG1M has three relays 5 A @ 250 VAC. Relays are not the EN performance safety function.
- Does SPXCDASMG1M include Modbus?
- SPXCDASMG1M ships with RS485 Modbus RTU (suffix M).
- How do I calibrate SPXCDASMG1M?
- Zero/span SPXCDASMG1M on the transmitter with certified gas and cap S3KCAL. Recalibrate after cartridge swap.
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 SPXCDASMG1M.