MULTIBEAM LENS DATA
The GJD multifunction lens fitted to the GJD Opal XL detector produces 9 long range beams
and 9 medium to short range curtain beams. Movement across the beams produces the best
response and range, whilst movement towards the detector will be less responsive.
When mounting higher than boundary fences rotate the module and mask off any beams, either
vertically or horizontally, that fall outside the area being covered. Use portions of the self-
adhesive silver mask supplied to the rear, smooth side, of the lens and always replace the
correct way up as shown to obtain the exact beam pattern coverage.
0
5
10
15
TOP
30
35
3
10
20
0 deg
0
LONG RANGE 35 METRE SECTION
6 TO 20 METRES SECTION
MULTIBEAM - OPTIMUM
HEIGHT:
3 METRES
RANGE:
MAXIMUM
MODULE TILT:
0 DEGREE
6
10
20
30
35
9 deg
0
6 TO 20 METRES SECTION
TOP
MULTIBEAM
HEIGHT:
6 METRES
RANGE:
MAXIMUM
MODULE TILT:
9 DEGREE
TOP
MASK THIS SECTION OFF
FOR PET ALLEY
APPLICATIONS
UP TO 35 METRES
1.5
10
20
30
35
-2 deg
0
PET IMMUNITY
HEIGHT:
1.5 METRES
RANGE:
MAXIMUM
MODULE TILT:
-2 DEGREE
5
10
15
20
25
30
35
15
10
5
0
5
10
15
Beam Pattern set to maximum
range
Masking top section of lens
will reduce range to 20 metres
0
2
4
6
8
10
12
14
6
4
2
0
2
4
6
Beam Pattern set to minimum
range. Masking top section of lens
will reduce range to 6 metres
TOP
MASK THIS SECTION OFF
FOR CURTAIN COVERAGE
APPLICATIONS
6
45deg
5
0
CURTAIN COVERAGE
HEIGHT:
6 METRES
RANGE:
MAXIMUM
MODULE TILT:
45 DEGREE
.
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