4.2.2 Sensor mode 1 'Heat detector'
4.2.2.1 Description
This sensor mode is especially suited for applications where the detector should
only react thermally.
The heat detector FDOOT271-O has the following parameter sets:
●
A1R (1)
●
A1S (3)
Notes on A1 designations
●
A1 parameter sets should be operated at a room temperature of around 25 °C.
However, they can be applied at temperatures up to 50 °C. The static response
temperature is 60 °C.
Notes on the designations R and S
Compared with S parameter sets, R parameter sets also trigger an alarm when the
temperature increases (e.g., from 20 °C to 50 °C within a few minutes).
4.2.2.2 Specification
No.
Name
Operating temperature
typ. / max.
Static activation
temperature
1
Differential activation
temperature
2
Differential activation
possible from:
[°C]
[°C]
∆T [K]
[°C]
1
A1R
60 °C rate of rise
25 / 50
60
25
3
3
A1S
60 °C maximum
25 / 50
60
–
–
1
Applicable with slow temperature increases <1 K/min.
2
Applicable with fast temperature increases of >10 K/min. When there is a slow
temperature increase of <10 K/min, this value rises by a few degrees.
Both parameter sets meet the criteria of standard EN 54-5.
Planning
Parameter sets for FDOOT271-O
4
A6V10425624_en--_h
29 | 50
Summary of Contents for FDOOT271-O
Page 49: ...A6V10425624_en _h 49 50 ...
