3. Choice of lens
There are several different lenses for PD-2210HF that
can be used for different functions. Long distance
lenses for corridors up to 80 meter (lens 41 and 43).
Lenses with many narrow fields for use i.e classrooms
(lens 51).
All lenses are described in handbook for “Presence
Detection”.
PD-2210HF are supplied as standard with lens no. 15.
With 58 fields in 3 layers. Detection area is 40 x 40
meters and suitable to be placed in a corner.
The detector is positioned in the corner furthest away
from the entrance at a height of 2 - 2.5 m. The
mounting height is very important to reliable detection.
Mounting too high up can result in relatively large areas
with poor detection.
4. Changing and adjusting a lens
Changing lens
1.
Press the looking device inside the
cover lose.
2.
Remove the old lens
3.
Fit the new lens with the ribbed surface
outwards and with the lens number in the
top right hand-hand corner, as seen from
the front.
Adjusting the lens
With field indicator diode BL-1 you can “see” the
sensing fields of the detector in the room. Especially
recommended when long-range lenses are used.
Vertical angel is adjusted by moving the board
upwards and downward.
Horizontal angel is adjusted by moving the lens right or
left.
Masking of lens element.
For limited detection area the lens can be masked.
Self-adhesive aluminium folio tape of the same type
used for window glass-break protections will block the
sensitivity 100%.
5. IR-signal analyse
PD-2210HF with microprocessor analysing the signals
from the pyroelectric detector has algorithms that
continuous counts single pulse, sum of pulse and noise
level.
Single pulse is a method used for ex. entering into a
premises. A fast method that activate when signal is
strong enough.
Sum of pulse a slower method of measurement that
takes longer detecting a human. Used i.e. when low
activity, as for sitting people and signal does not reach
level single pulse.
Level is chosen with potentiometer “Sensitivity”
Extronic AB • 08-771 26 00
3
08 04 29
Sensitivity
20m
2 s
100%
6%
40%
70%
15%
100°
From above
From the side
-5°
-28°
-13°
2.7
m
40
0
30
20
10 15
25
35
5
20
0
15
10
5
7.5
12.5
17.5
2.5
(Max.)
(Min.)
m
Lens no. 15
Mounted to high
