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4.2.2 Sensor mode 1 'Heat detector'
4.2.2.1 Description
4.2.2.2 Specification
No.
Name
Operating temperature
typ. / max.
1
A1R
60 °C rate of rise
3
A1S
60 °C maximum
A6V10425624_en--_h
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).
Static activation
1
temperature
[°C]
[°C]
25 / 50
60
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.
Parameter sets for FDOOT271-O
Differential activation
2
temperature
∆T [K]
25
–
Planning
4
Differential activation
possible from:
[°C]
3
–
29 | 50
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