Smoke detector WM 3000+

DICTATOR WM 3000+ heat detectors are used in hold-open systems to automatically close fire protection doors in the event of alarm. Heat detectors are used in particular when in the immediate surroundings of the detector due to certain working processes regularly occur smoke or dust which would cause false alarms. In Germany, however, heat detectors may not be used on doors in escape routes! The WM 3000+ heat detector comprises a pair of matched temperature probes. One of them is exposed and therefore responds more quickly to changes in air temperature. In the event of a rapid increase in the temperature and/or when a certain temperature is reached also the relay cuts off the power supply. The detectors of this series comply with the European standard EN 54. They have been tested as tripping devices for hold-open systems and are approved together with DICTATOR electromagnets by the building authorities. The detectors are among others included in the following approvals: Z-6.5-1903, Z-6.5-1707. 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.