LED smoke detector WM 2000

The WM 2000 heat detectors are used in hold-open systems of fire protection closures, except for doors in escape routes. Here heat detectors are never allowed according to the directives of the German Institute for Building and Construction Engineering. The WM 2000 has been tested according to the European standard EN 54 (part 5) and approved by the building authorities (Institut für Bautechnik in Berlin) for the use in hold-open systems. Among others it is included in the following approvals: Z-6.5-1903, Z-6.5-1707. The heat detector is equipped with a static alarm signal level at a temperature of 60 °C. An additional survey mechanism with rate-of-rise performance ensures a prompt and reliable response to rapidly increasing temperature. This offers significantly higher safety during fast spread of fire. In case of alarm a potential-free relay contact in the heat detector opens and cuts the power supply of connected electromagnets, door closers, door operators etc. The fire protection door closes at once automatically. When an alarm is triggered, a clearly visible red LED on the heat detector lights up. The alarm signal can electrically be analyzed via two separate potential-free relay contacts. To ensure the correct functioning of the hold-open system, the DICTATOR smoke and heat detectors have to be replaced after a maximum of 8 years of operational life. In Germany the DIN 14677 regulates the replacement obligation of fire detectors in hold-open systems.