Siemens FDL241-9 - Short Distance Filter DLF1191-AB; Extraneous Light Filter DLF1191-AC; Detector Heating Unit DLH1191 A

Structure and function
3
A
ccessories
32
Building Technologies 007016_i_en_--
Fire Safety 2012-09-07
3.4.6 Short distance filter DLF1191-AB
 For toning down the infrared ray over short
distances
 Distance: 5…8 m
 Compatible with:
– Linear smoke detector FDL241-9
 Order no.: BPZ:4933160001
3.4.7 Extraneous light filter DLF1191-AC
 For filtering extraneous light during a high level of
extraneous light
 Compatible with:
– Linear smoke detector FDL241-9
 Order no.: BPZ:5221480001
3.4.8 Detector heating unit DLH1191A
 For applications where there is danger of moisture
condensation or icing
 Incl. terminal block for the connection
 Compatible with:
– Linear smoke detector FDL241-9
 Order no.: BPZ:4787970001
See also
 Installing the detector heating unit (optional) [➙ 66]