D-1201-0
3
8. BR-1 PIR MOUNTING BRACKET
The BR-1 is a general purpose, adjustable mounting bracket which
accommodates the SRN-2000.
The BR-1 is installed on a wall. It is vertically adjustable 30°
downward and horizontally 45° left, 45° right (see Figure 7
).
BR-1
Figure 7. BR-1 Universal Adjustable PIR Mounting Bracket
9. WIRING
A.
For wiring the system use # 22 AWG or larger wire. The maximum
wiring length between the unit and its power source depends on
the number of units connected in parallel and the wire gauge. The
following table provides the maximum wiring length for a single
unit, using different gauge numbers.
Wiring
Guage 22 20 18 16
Wiring Length (ft)
750
1100
1800
3000
If two or more units are connected in parallel, the maximum wiring
length described in the table should be divided by the number of units.
B.
To route the wires into the sensor use either the wiring knockouts
or one of the lower mounting holes.
C.
Make no splices within the unit and avoid contact between
uninsulated conductors and the printed board.
D.
Connect wires to the terminal block in the following order. (Refer.
to Figure 8).
•
Connect Tamper N.C. terminals to a normally closed 24-hour
protection zone of the control panel. Tamper contact will
open when cover is removed.
•
Connect
Relay
N.C. terminals to a normally closed burglar
protection zone of the control panel. Relay contacts will open
when an intruder is detected or during power loss. The relay
contacts are rated at 100 mA, 24 VDC maximum (resistive
load only). An 18 ohm resistor is internally connected in
series to the relay contacts.
Note:
Model SRN-2000 C/PC provides changeover Form –
1C relay contacts (i.e. N.C + N.O).
•
Connect the 12VDC (+) and (-) terminals to a 9 to 16 Volt DC
power source and check for correct polarity.
E.
Seal all openings in the base with tape or RTV to prevent insects
from entering the unit.
The UL listed control unit or power source should have a back-up
battery that is capable of supplying power for at least four hours of
operation, during power failure. The maximum current drain of each
sensor in standby is approximately 20mA.
– +
12VDC
TAMPER
N.C.
RELAY
N.C.
T.P.
SRN-2000
– +
9 VDC
SRN-2000 C/PC
ALARM
N.O. C. N.C.
TAMPER
N.O. N.C. C.
Figure 8. Terminal Block Wiring
MOUNTING
KNOCKOUTS
LED
SELECTOR
DETECTOR
COVERAGE
RANGE
CONTROL
ADJUSTMENT
LOCKING
SCREW
TERMINAL
BLOCK
WIRING
KNOCKOUTS
MOUNTING
KNOCKOUTS
TAMPER
SWITCH
RELAY
VERTICAL
ADJUSTMENT
SCALE
POINTER
WALK-TEST
LED
PULSE
COUNTER
SELECTOR
(SRN-2000)
ON
OFF
LED
PATTERN
UP
SUPER
R.F.
PROTECTION
MIN
MAX
RANGE
DOWN
TAMP.
N.C.
Figure 9. Printed Circuit Board
10. ADJUSTING THE COVERAGE AREA
SUPER-RED provides you with the most powerful tools for quick,
easy and accurate pattern adjustments.
The coverage-range control adjustment, LED selector, horizontal
adjustment, vertical calibrated scale adjustment, vertical adjustment
table and beam masking material are all unique features which
enable precise pattern positioning both vertically and horizontally.
LED selector
The LED selector consists of a pin connector and jumper to switch
the walk-test LED either ON or OFF.
Horizontal Adjustment
SUPER-RED coverage pattern can be adjusted horizontally
approximately ±15° by rotating the lens to the left or right.
To adjust the lens, remove the lens-locking devices (see Section 5),
rotate the lens carefully to the desired position and lock the lens.
Vertical Adjusting Scale
The vertical scale adjustment (printed on left side of the P.C. board)
and the plastic pointer on the base indicate (in degrees) the vertical
angle between the upper layer of the coverage pattern and the
horizontal line of the unit.
Table 1 gives the optimum scale adjustment for various combinations
of mounting height and coverage range (indicated in feet and meters).
The table should be used only to the maximum coverage range of the
selected lens, as indicated in the Lens Library.
The scale enables pattern adjustment from +10
0
upward to -20
0
downward,
according to the installation height and the required coverage range.
All SUPER-RED sensors are shipped from our factory pre-set to -5°
(downward).
To change the vertical-pattern adjustment, loosen the screw which
fastens the printed circuit board to the base. Slide the P.C. board up
or down to the desired angle and tighten the screw firmly.
Caution!
With swivel brackets in use, the effective detection ranges
may differ from those indicated in Figures 1.
Table 1 – Vertical Adjustment Scale
Example: If you require coverage range of 40 ft (12 m) and wish to install the sensor
at a height of 6 ft (1.8 m) from the ground, set the Vertical Adjustment Scale to -3 .
Mounting
Height
Coverage Range
ft
m
2.5
3
4
4.5
5
6
7
8
0.8
1
1.2
1.4
1.5
1.8
2
2.5
7
10
13
17
20
23
26
30
33
40
50
60
2
3
4
5
6
7
8
10
12
15
18
9
+6
+2
+2
+2
+2
+1
+1
+1
+1
+1
0
0
0
0
0
0
0
0
0
0
0
-2
-2
-2
-1
-1
-1
-1
-1
-1
-3
-6
-4
-3
-3
-2
-2
-2
-1
-1
-11
-11
-8
-8
-19
-9
-11
-6
-6
-8
-9
-14
-10
-4
-8
-6
-4
-6
-7
-3
-4
-6
-4
-5
-6
-3
-3
-4
-3
-2
-3
-4
-2
-2
-3
-4
-2
-5
-15
-4
0
-4
-7
-19
-13
-10
-15
+4
+3
-5
-6
-5
-5
-5
