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Crowcon IRmax with IS Barrier Module | IR Gas Detector, IS Barrier | T90 <4 s, <1 W, 261x75x57mm
Fitted with an intrinsically safe barrier module, this IRmax version (261 x 75 x 57 mm, 2.4 kg) can be checked and calibrated with an IS hand-held or remote display mounted up to 3 m away. Test gas can then be applied without direct access to the detector head, which helps where the head is hard to reach.
Key features
- Stay-ClIR coated optics prevent condensation faults
- Under 1 W power, so small supplies and battery back-up suffice
- Wall, 50 mm pipe or junction box mounting
- 2 mA dirty-optics warning and 0 mA fault signal
- Annual proof-test interval; SIL 2 validated
- Specifications
- Downloads
| Part Number | IRmax with IS Barrier Module |
| Brand | Crowcon |
| Configuration | IRmax with IS Barrier Module |
| Size | 261 x 75 x 57 mm |
| Weight | 2.4 kg |
| Gases | Methane, butane, propane and other hydrocarbons |
| Enclosure | 316 stainless steel |
| Ingress protection | IP66 |
| Power | 12-30 Vdc, <1 W |
| Output | 4-20 mA sink/source; RS-485 Modbus and HART 7 optional |
| Operating temperature | -40 to +75 °C |
| Response time | T90 <4 s |
| Functional safety | IEC 61508, EN 50402 SIL 2 |
| Approvals | Ex II 2 GD Exd ia IIC T4 Gb (-40 to +75 °C); Ex tb IIIC T135°C Db (-40 to +40 °C) |
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