DLF150 linear smoke detector
How it works
The DLF150 linear smoke detector is specially designed for monitoring fire outbreaks over large areas. Thanks to an infrared beam – invisible to the human eye – between the transmitter unit and reflectors (prism mirror), the detector can quickly identify smoke build-up in the monitoring area and trigger an alarm. As smoke builds up or aerosol levels increase, these particles pass across the infrared beam, obscuring the reflected light signal. This change in light signal is evaluated by the transmitter unit and the alarm triggered if necessary.
The key planning requirements for this type of detector are set out in DIN VDE 0833-2 and other applicable standards. Under these standards, linear smoke detectors can be installed at a height of up to 16 m and the monitoring area is limited to 1400 m2.
The distance between the transmitter unit and the reflectors must be between 8 m and a maximum of 150 m.
Use Cases
Linear smoke detectors are ideal for monitoring large internal spaces, such as halls and production facilities, where the time and costs associated with installing and maintaining point fire detectors would be very high due to the production downtimes involved.
They are also an excellent choice for buildings where the installation of point fire detectors is not permitted, such as historical buildings with decorative ceilings or premises where the ceiling height is over 12 m.
- Large halls
- Tunnels
- Shopping centres
- Listed buildings (e.g. museums and churches)
- Aircraft hangers
- Atriums
- Libraries
Spotlight
Product
DLF150 linear smoke detector
The DLF150 linear smoke detector is available in two versions – with and without integrated heating. The version with integrated heating is highly recommended for locations where the detector will be subject to low temperatures and condensation.
- Operating voltage: 21 to 28.8 V DC
- Option (heating)
- Power supply: 21 to 28.8 V DC
- Current consumption: max. 650 mA -
Contact load:
- ALARM relay: max. 30 V / 2 A
- FAULT relay: max. 30 V / 2 A
- Range: 8 m to 150 m
- Wiring: 0.5 to 2.5 mm2
- Ambient temperature: -10 °C to +55 °C
- Air humidity: max. 93% RH
- Dimensions: 211 mm x 156 mm x 86 mm
- Weight: 820 g
- IP rating: IP54
- VdS approval: pending
APP-based control
Android and iOS compatible
The new ‘DET-init’ app is a versatile and effective tool for commissioning the DLF150 linear smoke detector and performing servicing and maintenance tasks.
The view from the infrared camera on the transmitter unit is displayed in the app, so that users can precisely adjust the alignment between the transmitter unit and any paired reflectors. Any potential disturbances, e.g. reflective items in close proximity to the reflectors, can be easily identified and removed.
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