Flame detectors are used to detect open flames indoor and outdoor. They respond to the light emitted from flames during combustion. Flame detectors are especially suitable for smokeless liquid and gas fires not visible for the naked eye as well as for fires of materials that contain carbon with strong smoke emission. Typical areas of application are large industrial warehouses, airplane hangars, chemical facilities, oil refineries, machine rooms, ferries and freight ships, power plants, printing plants, wood warehouses, subway tunnels. Flameproof equipment is contained in an enclosure so strong that an internal explosion will neither damage the enclosure nor be transmitted outside of it. The surface remains cool enough not to ignite the explosive mixture.
| |
|
| Detector (W x H x D) |
146 x 150 x 137mm |
| Cable gland entries |
3 x 20mm |
| |
|
| Terminal functions |
|
| 1 – 2 |
Supply in connections or 2-Wire connections +IN and -IN |
| 3 – 4 |
Remote test input connections +R and -R |
| 5 – 6 |
Alarm Relay RL1 connections |
| 7 – 8 |
Fault Relay RL2 connections |
| Operating voltage |
14 to 30V DC |
| Current consumption, 2-Wire configuration |
|
| Standby |
4mA |
| Alarm |
20mA |
| Current consumption, 4-Wire configuration |
|
| Standby |
8mA |
| Alarm |
20mA |
| |
|
| Housing material |
Copper Free Aluminium Alloy(LM25) |
| Housing color |
Red |
| Weight |
2.5kg |
| Protection category (EN 60529) |
IP66 |
| |
|
| ATEX |
Ex II 2GDEx d IIC T4 Gb Ex tb IIIC T135℃ DbIP66A21 |
| IECEx |
Ex d IIC T4 Gb Ex tb IIIC T135℃ DbIP66A21 |
| |
|
| Permissible operating temperature |
-10 to +55°C |
| Permissible storage temperature |
-20 to +65°C |
| Relative humidity |
95%, no condensation |
| |
|
| Detection principle |
Detection of low frequency (1 to 15Hz) flickering infrared radiation |
| Operating wavelength band |
0.75 to 2.7µm |
| Detection area |
90° cone |
| Sensitivity |
High (Class 1 ) and Low (Class 3 ) |
| Range |
Class 1: 0.1m² n-heptane at 25m Class 3: 0.1m² n-heptane at 12m |
