An infrared detector whose sensor does not wear out under prolonged gas exposure — unlike catalytic sensors. Covers explosive gases plus an additional range of industrial/refrigerant gases.
Technical Specifications
| Technology | Infrared — sensor life does not decrease with continuous gas presence |
| Gases | Methane, natural gas, propane, CO₂, N₂O, SF₆, and refrigerants |
| Range (explosive) | 0–100% LEL |
| CO₂ range | 0–2% vol |
| N₂O range | 0–1000 ppm |
| Refrigerant / SF₆ range | 0–2000 ppm |
| Communication | RS485, 4-wire addressable (DURGAS); a 4-20mA version is also available (excluding refrigerants/SF₆) |
| ATEX certificate (DIREX-X) | LOM 08ATEX2059 X — flameproof enclosure |
| ATEX marking | II 2G Ex db IIC T6 Gb (gas) / Ex tb IIIC T85 °C Db (dust) |
| Supply voltage | 10 … 30 V DC |
| IP rating | IP65 |
| Temperature range | -20 … +50 °C |
| Dust version | Add a "t" after the "X" in the code for ATEX certification for combustible dust |
Key Features
- Factory calibrated — no recalibration required
- Optical fault indication
- Local relay output for alarm
Applications
refrigeration plants
industrial sites
underground car parks
tunnels