279
01 234 56 78 10 11
B
C
9
A
2,00
0°
-25°
01 234 56 78 10 11
A
B
C
9
1,20
0°
+2°
-6°
28°
25°
12
10
8
6
4
2
m
C
C
C
30°
30°
105°
A
A
A
B
B
B
A
B
A
B
A
28°
25°
30° 30°
1
2
3
067512
L4611B
N4611B
NT4611B
AM5791B
Horizontal adjustment
Vertical adjustment
Front view
Horizontal adjustment
Vertical adjustment
Passive IR detector
Description
These devices are the simplied version of sensors item L/N/NT4611, item 675 02 and
item AM5791. They have a xed level of sensitivity (6 metres).
Also in this case, the passive infrared detector is a volumetric detector with tilting lens,
sensitive to the movement of warm bodies.
The volume of the protected zone is divided into 14 beams distributed on 3 levels.
The detector works in two dierent ways: instantaneous or with impulse calculation, in
order to reduce the possibility of false alarms. It is available for installation in the high
sections of rooms, at heights between 1.2 and 2 metres.
The position of the lens should then be adjusted based on the characteristics of the room
to protect.
Related articles:
681 83 (White Cover)
684 83 (Titanium Cover)
Legend
1 - Fresnel lens;
2 - Covering reducing lid;
3 - Alarm warning LED.
Technical data
- Power supply from SCS BUS: 27 Vdc
- Max. absorption: 4.5 mA
- Operating temperature: 5 – 40°C
Dimensional data
Size: 2 modules
Covering range
MQ00037-c-EN 28/04/2014