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Crowcon SMART 3G-D2 | Fixed Gas Detector with Display | 50+ gases, non-intrusive calibration
The SMART 3G-D2, a Sensitron detector in the Crowcon range, pairs a bright 4-digit display with a high-visibility LED crown signalling three status levels. Calibration is non-intrusive using Hall-effect switches and a magnetic pen, so the enclosure stays closed and the area need not be declassified. Catalytic, electrochemical, infrared and intrinsically safe versions cover over 50 gases.
Key features
- 7-segment display, 5 status LEDs and 4 intelligent LEDs
- Non-intrusive calibration via magnetic pen
- 4-20 mA output with relay board and optional RS485
- SIL2 hardware, SIL3 software
- Tested to EN 60079-29-1
- Specifications
- Downloads
| Part Number | SMART 3G-D2 |
| Brand | Crowcon |
| Gases | 50+ flammable, toxic and refrigerant gases (catalytic, IR, EC) |
| Size | 145 x 187 x 108 mm; 138 x 200 x 119 mm (IS) |
| Weight | 1.9 kg; 2.7 kg (IS) |
| Enclosure | Die-cast aluminium, epoxy painted |
| Ingress protection | IP65 |
| Connection | 3 x 3/4" NPT |
| Power | 12-24 Vdc |
| Outputs | 4-20 mA; relays; RS485 (optional) |
| Operating temperature | -40 to +60 °C (cat/IR); -30 to +55 °C (EC); -20 to +50 °C (IS) |
| Response time | t90 <60 s; t50 <20 s |
| Functional safety | SIL2 hardware, SIL3 software |
| Approvals | EMC, ATEX, IECEx |
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