Magic.sens T 400 E Lsn; Sensitivity Classes According To En 54 Part 5 - Bosch MAGIC.SENS series Product Manual

Product Information MAGIC.SENS -- Product range

4.5. MAGIC.SENS T 400 E LSN

Selectable sensitivity classes in the >WinPara< programming software
§ A2R Typical application temperature: 25_C, T
A2S Typical application temperature: 25_C, only T
A1R Typical application temperature: 25_C, T
A1 Typical application temperature: 25_C, only T
BR Typical application temperature: 40_C, T
BS Typical application temperature: 40_C, only T
§ = basic setting in the >WinPara<programming software
. During installation for automatic door control according to DIBt, the detector
must be programmed according to the class A1R!

4.5.1. Sensitivity classes according to EN 54 Part 5

The MAGIC.SENS T 400 E LSN gives you the opportunity, according to the
programming, to specify one of the six sensitivity classes listed above.
In the sensitivity classes A1, A2S and BS, the MAGIC.SENS T 400 E LSN is operated
as a pure thermo--maximum detector.
Here in the class A2S the detector does not activate under 54_C and in class BS not
under 69_C.
The sensitivity classes A2S and BS are therefore especially suitable for applications
where over a longer period, higher temperature rates--of--rise occur, e.g. in kitchens
or boiler rooms.
The sensitivity classes A1R, A2R and BR mean that in addition to the thermomax
unit, the thermodifferential unit is also active.
These sensitivity classes are especially well--suited for use in unheated buildings where
the ambient temperature can vary greatly but temperature rates--of--rise do not last long.
With the thermodifferential unit, the detectors in classes A1R/A2R activate at
T< 54°C and in class BR at T< 69°C; see table page 15.
The selection of the sensitivity class also depends on the installation height of the
detector (see table above).
For the highest security against false alarms, with room heights below 6 m, the classes
A1 and A1R should not be selected, although this is allowed in principle. Furthermore,
the expected application temperature must be taken into consideration.
+ T
max diff,
height up to 6m
max,
+ T
max diff,
height 6--7.5m
max.,
+ T
max diff.,
height up to 6m
max.,
Page 13 of 42
PI -- 34.65d
height up to 6m
height 6--7.5m
height up to 6m
BDL- -4998121218
A23.en /09.02.2007
ST- -FIR/ PRM1 / deh