SPXCDALMHXM
SPXCDALMHXM is the Sensepoint XCD Electrochemical (Surecell™) hydrogen sulfide complete transmitter, default 0-50ppm, LM25 epoxy-coated aluminium, 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 | L |
| M / N | Entry M=M20; N=3/4″ NPT | M |
| HX | hydrogen sulfide，Electrochemical (Surecell™) | HX |
| M | RS485 Modbus RTU | M |
Key specifications
| Target gas | H₂S / hydrogen sulfide |
|---|---|
| Principle | Electrochemical (Surecell™) |
| Default range | 0-50ppm |
| User FSD window | 10.0–100.0ppm |
| Resolution | 1ppm |
| Output | 4–20 mA sink/source + 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
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 SPXCDALMHXM 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
- Is the safety function on SPXCDALMHXM the relays or 4–20 mA?
- On SPXCDALMHXM the only EN performance safety function is 4–20 mA. Relays and Modbus are not SIL/performance-certified.
- Does SPXCDALMHXM have a display?
- SPXCDALMHXM transmitter has a tri-colour backlight LCD. The cartridge itself has no display.
- Can I retap SPXCDALMHXM from M20 to NPT?
- No. SPXCDALMHXM flameproof entries are machined 2 × M20. Order the matching P/N for the other thread.
- Is SPXCDALMHXM ATEX or UL certified?
- SPXCDALMHXM is the ATEX / IECEx / GB scheme. Do not use it as the other system.
- Does SPXCDALMHXM carry a China / GB certificate?
- SPXCDALMHXM literature states GB Ex d IIC T4 (GB3836); no standalone CNEx serial is published here.
- What gas and range does SPXCDALMHXM cover?
- SPXCDALMHXM measures hydrogen sulfide at default 0-50ppm (user window 10.0–100.0ppm). Principle: Electrochemical (Surecell™).
- What supply voltage does SPXCDALMHXM need?
- SPXCDALMHXM supply is 16–32 VDC (24 VDC nominal). A cartridge is not separately powered.
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 SPXCDALMHXM.