-
2
-
04111
Figure 12 shows the pattern for the maximum range in the
optimum position (see Figure 10). Masking the top section
of the lens reduces the range to 20m.
Figure 13 shows the pattern for the minimum range. In this
case masking the top section of the lens reduces the range
to 6 meters.
Figures 14 and 15 illustrates alignment recommendations
for when the detector is mounted close to a wall.
The alignment shown in Figure 14 is not recommended. If
the detector module is orientated 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.
Figure 15 shows the recommended alignment. The detector
module is orientated 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 metres.
The user can individually program a number of configurable
settings, as illustrated in the programming chart.
Programming
SETTING
1
2
3
4
5
6
7
8
O
P
T
I
O
N
S
1
Range (m)
8
15
20
25
30
2
Pulse Count
1
2
3
3
LED
Off On
4
'S' Output
Lux Level
2
5
10
20
30
40
50
24
HR
5
Contacts
Alarm 1
N/O N/C N/C
Alarm 2
N/O N/O N/C
6 Timer Seconds
2
5
10
20
30
40
50
60
A
U
X
7
Press 7 times to flash out your selected settings
8
Press 8 times to reset to GJD factory settings
Shaded settings are factory defaults
To change any of the D-Tect 2 settings:
1. Press the program button, as shown in figure 16,
for the number of the Option to be changed, i.e.
once for range, twice for pulse count, three times
for LED, four times for lux, five times for contacts
and six times for timer.
Note: If using the IR Key Fob, press the key fob
button instead of the detector's program
button. See Figure 17.
2. Wait until the blue LED indicator goes off (typically
four seconds).
3. The indicator will then flash out the existing
settings.
4. To change the settings for that option, press the
program button the number of times for the
required new setting.
5. The indicator blinks twice and the changes are
stored in the D-Tect 2's non volatile memory.
Note: When power is applied to the D-Tect 2, the user
has a time slot of 5 minutes to start using the IR key
fob. This can be reset either by pushing the program
button as shown in figure 16 or by removing then
reapplying power to the D-Tect 2.
Example: To change the LED setting from OFF to ON:
1. Press the program button three times.
Note: If using the IR Key Fob, press the key fob
button instead of the detector's program
button. See Figure 17
.
2. Wait until the blue LED indicator goes off (typically
four seconds).
3. The indicator will then flash once, indicating the
current LED setting is OFF.
4. Press the program button twice to change the
setting to ON.
5. The indicator blinks twice and the changes are
stored in the D-Tect 2's non volatile memory.
Programming Options Definitions
Pulse Count
This is the number of times the unit has to detect on both of
its sensors before signalling an output.
LED
LED Off – LED disabled.
LED On – LED signals a detection.
Lux Level
This is the approximate level that the ambient light must
reach before the 'S' output will become active when there is
an activation.
The 'S' output switches negative for 60 seconds when there
is a detection and the light level is below the programmed
setting.
The 'S' output is an open collector type rated at maximum
25mA.
Alarm 1 & Alarm 2 Outputs
These are magnetically immune volt free relay contacts
used to trigger alarm inputs on connected equipment. They
can be set to be both normally open, one normally closed
and one normally open or both normally closed.
The contacts are rated at a maximum of 24V AC/DC @
50mA.
Programming Chart
Use portions of the self-adhesive silver mask applied to the
rear, smooth side of the lens as shown in Figures 10 and
11. Always replace the lens the correct way up to ensure
exact beam pattern coverage (top of the lens is marked
TOP).
When mounted at heights above 3 metres there could be a
significant reduction in the range of detection and the target
will have to move a greater distance within the field of view
before an alarm is generated.
Configuration
Mounting
Height
(Metres)
Tilt (°)
Max.
Range
(Metres)
Reference
Multibeam
(Optimum)
3
0
30
Figure 10
Pet Immunity *
1.5
-2
30
Figure 11
Masking Configurations For Maximum Range
* Black area should be masked for pet alley applications up to 30 meters.
