Structure and function
25
Building Technologies 007004_k_en_--
Fire Safety & Security Products 16.04.2009
3.3.3 Heat detector
The heat detector is a pure heat detector with two thermal sensors. The following
heat detectors are available:
z FDT241
z FDT221
The following table indicates the most important differences between the two heat
detectors.
Parameters FDT241 FDT221
Signal processing ASAtechnology Detection algorithms
Alarm activation by: z Temperature increase
z Reaching the maximum
temperature
z Temperature increase
Setup and function
1
1 Heat sensors
Thanks to the two sensors, a total failure can be avoided if one of the two sensors
fails or breaks down.
To Next Page
Loading...
