GE Security SB250 Manuel D'installation page 10

Aligning the cells visually
1. Slightly unscrew the module's adjustable
support.
2. Position your eye at an oblique angle about
5 cm from the module as shown in the
diagram to the right.
3. Look in the mirror inside the module to see
the image of the module opposite through
the hole in the side of the cell.
4 – Horizontal alignment: Rotate the
adjustable support by up to 90°
– Vertical alignment
(SB2100/SB4100/SB4200): Turn the
thumbscrew by up to 10°
– Vertical alignment (SB250 and SB450):
Rotate the beam cell.
5. Once the optimal alignment has been
achieved, tighten the screw of the adjustable
support to lock horizontal rotation.
Optimising the reception
Power up the detector, making sure that the green LED on the transmitter and the red LED
on the receiver light up. Depending on the detector type, proceed as follows:
SB4200*
Operational
SB4100* Align lower beam
Align upper beam
SB450* Not permitted
SB2100***
SW1 & SW2 = OFF
SB250***
* For distances less than 150 m, first select the beam cell to align by setting DIP switch 1
to ON for the lower beam cell and then DIP switch 2 to ON for the upper beam cell on both
the transmitting and receiving modules.
** For distances greater than 150 m, we strongly recommend the use of the alignment
controller (SB51). Leave the DIP switches in the OFF position.
*** Leave the DIP switches in the OFF position.
+ terminal for
measuring
received signal
- terminal for
measuring
received signal
50 m 100 m
SW1 SW2
OFF OFF
ON OFF
OFF ON
ON ON
RECEIVER
S
I
G
N
A
L
View-
finder
150 m
1 2 3 4
Align. Channel
B1 B2
Delay
50 600
ms
Alarm
Disq.
10
oblique
angle
5 cm
Vertical adjustment
thumbscrew for
SB2100/SB4100/
SB4200 modules
Viewfinder image
200 m
SB51**
SW1 & SW2 = OFF