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Crowcon SMART S-MS | SIL Fixed Gas Detector for Heavy Industry | Cat or EC head, HART option, Ex db IIC T5
The SMART S-MS is a Sensitron fixed detector in the Crowcon range, built for oil and gas, refining and petrochemical duty with SIL2 hardware and SIL3 software. A catalytic pellistor head covers flammables from acetone to xylene, while electrochemical heads handle CO, H2S, NO, O2 and similar gases. The transmitter gives 4-20 mA and RS485, with a 3-relay board or HART modem as options.
Key features
- Catalytic pellistor or electrochemical sensor heads
- Optional HART modem or 3-relay card
- Die-cast aluminium enclosure, IP65
- Flameproof Ex db IIC T5 Gb
- Tested to EN 60079-29-1
- Specifications
- Downloads
| Part Number | SMART S-MS |
| Brand | Crowcon |
| Gases | 30+ flammables (catalytic); CO, H2S, NO, O2, NH3, H2 (EC) |
| Size | 145 x 187 x 108 mm |
| Weight | 1.5 kg |
| Enclosure | Die-cast aluminium, epoxy painted |
| Ingress protection | IP65 |
| Connection | 2 or 3 x 3/4" NPT |
| Power | 12-24 Vdc |
| Outputs | 4-20 mA; RS485; 3 relays (optional); HART (optional) |
| Operating temperature | -40 to +65 °C (cat); -30 to +55 °C (EC) |
| Response time | t90 <60 s; t50 <20 s |
| Functional safety | SIL2 hardware, SIL3 software |
| Approvals | ATEX, IECEx Ex db IIC T5 Gb |
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