There are 2 Masking plates and 2 Masking Flaps, one each for the top PIR and one
each for the bottom PIR. The Masking Flaps are used to mask the long distance
detection zones, i.e. shortening the detection distance. The Masking Plates are used to
mask the short range detection area, i.e. masking the area closest to the detector.
Masking Flaps
1.)
Put the Top Masking Flap to position A. Detection length is 18m.
Side View
Masking Plate
Masking Flap
