UTC Fire & Security Americas Corporation Inc 779EPIR Manual De Usuario
P/1REV 2.ISS 19APR12
5 / 7
Note:
PIR sensor is more sensitive to a movement across the
beams, and less sensitive to a movement directly towards or
away from the beams.
away from the beams.
The detector module is fitted with two sliding shutters to reduce
the detection angle.
the detection angle.
The curtains are fitted to the pan and tilt module as shown in
Figure 6. Each section of the detector lens gives a coverage
pattern of approximately 10 degrees.
Figure 6. Each section of the detector lens gives a coverage
pattern of approximately 10 degrees.
An additional set of curtain sliders is provided should the beam
pattern be narrowed even further, e.g. if the minimum detection
angle of 10 degrees is required.
pattern be narrowed even further, e.g. if the minimum detection
angle of 10 degrees is required.
When coverage exceeds the desired detection area, adjust the
module as required and mask off any beams, either vertically
or horizontally, to avoid unwanted detection.
module as required and mask off any beams, either vertically
or horizontally, to avoid unwanted detection.
Use portions of the self-adhesive silver mask applied to the
rear, smooth side of the lens as shown in Figures 11 and 12.
Gently lift the top and bottom edges of the pan and tilt module
to release the lens. To replace the module, please begin by
sliding one side of the lens into the clips on the pan and tilt
module. After one side is secure, do the same for the opposite
side. Once both sides are secure, gently lift the top and bottom
edges of the pan and tilt module and press on the lens to click
it into place.
rear, smooth side of the lens as shown in Figures 11 and 12.
Gently lift the top and bottom edges of the pan and tilt module
to release the lens. To replace the module, please begin by
sliding one side of the lens into the clips on the pan and tilt
module. After one side is secure, do the same for the opposite
side. Once both sides are secure, gently lift the top and bottom
edges of the pan and tilt module and press on the lens to click
it into place.
Always replace the lens the correct way up to ensure exact
beam pattern coverage. The top of the lens has a notch and
is marked TOP as shown in Figure 7.
beam pattern coverage. The top of the lens has a notch and
is marked TOP as shown in Figure 7.
Table 2 below summarizes typical masking configurations for
use when the range option is set to 30 meters.
use when the range option is set to 30 meters.
Table 2: Masking configurations for maximum range
Configuration
Height
(m / ft.)
(m / ft.)
Tilt (°)
Max. range
(m / ft.)
(m / ft.)
Reference
Multibeam, optimum
3 / 10
0
30 / 98
Figure 9
Multibeam
6 / 20
9
25 / 82
Figure 10
Pet immunity [1]
1.5 / 5
í2
30 / 98
Figure 11
Curtain coverage [2]
6 / 20
45
5 / 16
Figure 12
[1] Black area should be masked for pet alley applications up to
30 meters / 98 feet.
[2] Black area should be masked for curtain coverage applications.
Figure 13 shows the pattern for the maximum range in the
optimum position (see Figure 9). Masking the top section of the
lens reduces the range to 20 m / 66 ft.
optimum position (see Figure 9). Masking the top section of the
lens reduces the range to 20 m / 66 ft.
Figure 14 shows the pattern for the minimum range (10 m /
33 ft.) In this case masking the top section of the lens reduces
the range to 6 meters.
33 ft.) In this case masking the top section of the lens reduces
the range to 6 meters.
Figure 15 shows possible alignments when the detector is
mounted close to a wall.
mounted close to a wall.
Figure 15 legend
Item
Description
1.
90° mounting, not recommended
2.
55° mounting, recommended
3.
Detector housing
4.
Long range beam direction
5.
Wall
The alignment shown as item 1 in Figure 15 is not
recommended. If the detector head is mounted at an angle of
90° to the perimeter, the mounting wall may cut off short and
medium range beams. The long-range beam will still detect an
intruder, however the wall can cause false alarms when heated
by sunlight.
recommended. If the detector head is mounted at an angle of
90° to the perimeter, the mounting wall may cut off short and
medium range beams. The long-range beam will still detect an
intruder, however the wall can cause false alarms when heated
by sunlight.
Item 2 in Figure 15 shows the recommended alignment. The
detector head is mounted at a 55° angle to the perimeter. As a
result, short and medium range beams are parallel to the
perimeter, but the detection range along the perimeter is
reduced to 25 m.
detector head is mounted at a 55° angle to the perimeter. As a
result, short and medium range beams are parallel to the
perimeter, but the detection range along the perimeter is
reduced to 25 m.
LEDs
The detector has one LED as shown on Figure 16.
Figure 16 legend
Item
Colour
Description
1.
Blue
Detection alarm
Programmable options (PIR)
Range and Pulse count
Pulse count is the number of times the detector must detect a
presence before signalling an alarm.
presence before signalling an alarm.
When the pulse count is set to 1, the detector is most sensitive.
Programming (PIR) 319.5MHz Detector
Figure 16 legend
Item
Description
1.
Programming LED
2.
Programming button
All available settings are listed in Table 3 below.
Table 3: Programming settings
e
u
l
a
V
1
n
o
i
t
p
O
2
3
1.
Range (m / ft.)
10 / 33
20 / 66
30* / 98*
2.
Pulse count
1*
2
* Default settings