User manual

Scope of delivery | Technical data
10
Functional principle and features
 The smoke alarm device does not detect gas, steam, fire or flames.
 People with impaired hearing may not be able to hear the alarm.
Alarms with additional optical signalling are available for such cases.
 Particularly high electromagnetic radiation could impair the function
of the detector. For this reason, do not install the detector near
magnets or devices which produce electromagnetic radiation.
 The smoke alarm device operates in accordance with the optical
principle (photoelectric reflection) and features a measurement
chamber in which infiltrating smoke particles are measured.
 If the alarm threshold is exceeded, a loud acoustic alarm sounds.
The smoke alarm device also has a heat detector that triggers an
alarm if a threshold value is exceeded.
 The alarm is switched off as soon as the measurement chamber is
free of smoke again and/or the temperature has fallen back to a
normal level.