Installation Instructions
DS433i Single Beam Photoelectric
Intrusion Detection Systems
1.0 Specifications
• Range: Indoors: 100 ft. (30 m) max.
• Voltage: 10 to 26 VDC; 8 to 18.5 VAC.
• Current: Transmitter Receiver
(@ 12VDC) 7 mA max. 25 mA max.
• Standby: Intended for connection to DC power supplies
capable of supplying power if primary power fails.
• Relay: “NO” or “NC” (selectable) output. Dry Contacts r
ated 0.5 A @ 120 VAC, 1 A @ 24 VDC (resistive
load).
• Tamper: Normally Closed with cover in place.
• Response Time: 100 milliseconds minimum.
• Pointability: The optical module can be adjusted ±15°
horizontally or ±5° vertically.
• Beam: Pulsed Infrared; 950 nm, 1 kHz.
• Temperature: -4°F to +122°F (-20°C to +50°C).
• Dimensions: 4.5 in. x 2.8 in. x 2.1 in. (HxWxD)
114 mm x 70 mm x 53.5 mm
2.0 Installation Considerations
• Stay within the listed maximum range.
• Install the system with a clear line-of-sight between the transmitter
and receiver.
• Use care when installing near reflective surfaces (i.e. glossy walls
or floors). Care should be taken during alignment to ensure beams
are line-of-sight aimed and are not reflecting off surfaces.
• Do not install the units where they may be immersed in water or
subject to corrosive liquids or sprays.
• Do not install the receivers where they will be facing an intense
source of light (e.g. a rising or setting sun). If the sun can not be
avoided, mount the receiver slightly higher than the transmitter. Aim
the receiver down at the transmitter.
• Do not install the receivers where sunlight could be reflected directly
into the receiver optics.
• Do not install either unit on movable surfaces or surfaces subject to
strong vibrations.
3.0 Mounting
3.1 Wall Mount
NOTE: The units should be mounted higher than 2 feet (0.6 m).
However, mounting height will change depending on the
anticipated intruder catch area.
• Choose the appropriate mounting locations. They should be rigid
and provide a clear line-of-sight between the transmitter and receiver.
• Cut holes 2.8 inches (72 mm) high by 2.1 inches (52 mm) wide and
run appropriate wiring (see Section 4.0 for wiring information).
NOTE: Be sure all wiring is unpowered before routing and connecting.
• Connect wires to Terminal Blocks (see Section 4.0)
• Remove the Transmitter’s filter by inserting a small flat-blade
screwdriver into the slot at the top of the filter and gently prying it
loose (see Figure A).
Insert
Screwdriver
Here
Filter
Figure A - Removing Filter
• Slide the Transmitter into the hole in the wall and attach with selftapping screws through the Mounting Holes (see Figure B).
Mounting Holes
Viewfinders
Mirror Units
Indicator LEDs
Vertical
Adjustment
Screws
Tamper Switches
Mounting Holes
Receiver Transmitter
Figure B - Location of the System’s Major Items
• Repeat this complete mounting procedure for the Receiver. Be sure
to mount the Receiver in direct line-of-sight with the Transmitter.
3.2 Switch Box Mount
NOTE: The units should be mounted higher than 2 feet (0.6 m).
However, mounting height will change depending on the
anticipated intruder catch area.
NOTE: Use standard single gang switch boxes.
• Choose the appropriate mounting location. Install the switch boxes
with a clear line-of-sight between the transmitter and receiver.
• Run appropriate wiring (see Section 4.0 for wiring information).
NOTE: Be sure all wiring is unpowered before routing and connecting.
• Connect wires to Terminal Blocks (see Section 4.0)
• Remove the Transmitter’s filter by inserting a small flat-blade
screwdriver into the slot at the top of the filter and gently prying it
loose (see Figure A).
• Slide the Transmitter into the Switch Box and attach with machine
screws through the Mounting Holes (see Figure B).
• Repeat this complete mounting procedure for the Receiver. Be sure
to mount the Receiver in direct-line-of sight with the Transmitter.
4.0 Wiring
Only apply power after all connections have been made
and inspected.
• Use the following chart (Figure C) to determine the minimum gauge
wire needed per length of wire run between the power source and
the last unit on the run. The chart is based on one system (one
transmitter and one receiver) connected to the same wire run from
the power source.
If more than one system is added to the run, the maximum length
per gauge decreases and is determined by dividing the length found
in the chart by the number of systems on the run.
DS433i Wiring Chart
SIZE
20 AWG (1.0 mm)
18 AWG (1.2 mm)
16 AWG (1.5 mm)
14 AWG (1.8 mm)
• Wire the receiver and transmitter terminal strips (see Figures D and
E).
ALARM
OUTPUT
POWER
(non-polar)
N.C.
Figure D - Receiver wiring Figure E - Transmitter wiring
TAMPER
SWITCH
(N.C. with
cover fitted)
COM.N.O.
5.0 Set-up and Alignment
NOTE: Precise, correct alignment is a critical process for these
systems to operate effectively.
• Look through one of the Transmitter’s Viewfinders located on either
side of the Mirror Unit (see Figure B).
• Rotate the Mirror Unit until the image of the other unit is centered in
the mirror (see Figure F). If initially aimed too high or low, adjust the
Vertical Fine Tuning Screw (see Figure B) until the unit is centered.
12 VDC
1,000 ft. (300 m)
1,600 ft. (480 m)
2,600 ft. (790m)
4,000 ft. (1200 m)
Figure C - Wire chart
POWER
(non-polar)
24 VDC
5,000 ft. (1500 m)
8,000 ft. (2400 m)
13,000 ft. (3900 m)
20,000 ft. (6000 m)
TAMPER
SWITCH
(N.C. with
cover fitted)
NOTE: The Mirror Units may be cleaned with a soft, clean, damp
cloth.
• Once the system is properly aligned, replace the Filters.
6.0 Final Check
NOTE: The following test should be performed at least once per year
to assure proper performance and operation. Furthermore,
the system mounting (including alignment), wiring, and
condition of all components should be inspected periodically.
• Once the system has been aligned and all components are
reassembled, walk through the beam path at several locations and
from varying directions (see Figure G). Be sure the system alarms
as desired.
Figure G - Walk Testing
• The system should alarm during each crossing of the beam. If not,
re-check alignment.
NOTE: If a tamper circuit has been installed, it should be tested now
by removing the Filters.
• Replace the Filters after testing.
7.0 Other Information
7.1 Alignment Lights
Alignment may be made easier by using a flashing high intensity light
placed in front of the units. This makes a very distinct target when
looking at the other unit through the viewing port. A recommended
light source is model AL402.
7.2 Maintenance
At least once a year the Filters should be cleaned. Use a soft, clean
damp cloth.
On a daily basis, the end user should walk through the beams before
arming. This will verify operation.
8.0 Application Tips
When using photoelectric detectors for motion detection, there are a
few installation techniques that will make the system more versatile.
8.1 Beam Stacking
Beam stacking gives a wall of protection by stacking several units at
different heights and providing an alarm activation on the blockage of
Figure F - Viewfinder Image
NOTE: Alignment may be made easier with the use of an alignment
light (see Section 7.0).
• Repeat this complete alignment sequence for the Receiver.
Only apply power after all connections have been made
and inspected.
• Apply power to the units.
• Check the Transmitter. The Indicator LED (see Figure B) should be
on (green). If the lamp is not on, the unit is not receiving power.
• When properly aligned the Receiver’s Indicator LED should be lit
(green). If the Indicator LED is not on or lit red, either the Receiver
is not properly wired to the power source, the units are not properly
aligned, or the mirrors are dirty. Inspect the wiring, clean the mirrors,
and realign the system as needed.
Page 2 P/N: 45314C DS433i Installation Instructions
only one pair of beams (see Figure H for the correct set-up technique).
Note that the system is installed with alternating transmitters and
receivers at each end. This eliminates the possibility of a receiver
being covered by more than one transmitter.
T1
S
R2
Figure H - Beam Stack Method
D
R1
T2
The maximum spacing between receivers (S) can be calculated by
dividing the distance between the transmitter and its receivers (D) by
20.
Therefore, if the distance between a transmitter and receiver is 100
feet (30 m), the maximum spacing between receivers would be 100
ft. (30 m) ÷ 20, or 5 ft. (1.5 m)
S = D/20 S = 100 ft. (30 m)/20 S = 5 ft. (1.5 m)
A potential problem when installing systems in a beam stack is “Near
Field Reflection.” Near field reflection is caused when a reflective
object is placed in the line-of-sight of the detectors and causes the
transmitted signal to be reflected to the wrong receiver (see Figure J).
8.2 Perimeter Protection
When protecting the interior of an installation, a good technique is to
mount the units at 90° angles around the coverage area (see Figure
L).
R4
T1
T2
R1
T1
R2
Figure J - Near Field Reflection
It may be desirable to have more than two sets of beams to create
taller stacks. This can be accomplished by adding receivers as shown
in Figure K. Note that the beam from each transmitter is covering two
receivers. (T1 covers R1 and R3, T2 covers R2 and R4). To acheive
this the receivers must be spaced closer together than the “S” distance
calculated with the above equation.
R4
R2
Figure K - Multi-system Stack
R1
T2
R11T
R3
T2
R3
T4
Figure L - Perimeter Protection
Note that the beams are mounted so they cross each other. This
way, an intruder can not enter the area by walking between the units.
When installing multiple transmitters and receivers, test with all the
receivers powered-up, but with only one transmitter powered-up at a
time. A transmitter should set-up only its receiver.
Receivers physically too close to a different system’s transmitters
may be set-up even if the transmitter is not pointed at them (see
Figure M).
Near Field Energy
R2
T
T3
R
Figure M - Close Proximity Field Problem
If a receiver is being set-up by the wrong transmitter, the signals can
usually be eliminated by masking the sides of the transmitter and
receiver. Use electrician’s tape or duct tape inside each enclosure’s
filter.
When installing these systems, remember that the infrared signal
may reflect off objects (e.g. glossy walls or floors) in the coverage
area and still set up the receiver.
A thorough walk test performed at several different points within the
coverage area will catch this problem. Re-aligning the units should
solve this problem.
The only way to insure proper continual protection is to perform
regular walk tests of the desired coverage area.
Distribuição: Segurança Industrial Equipamentos
Fone/Fax: (41) 4063-9687 ou 3287-1364
cml@segind.com.br - segindbr@hotmail.com
www.segind.com.br
DS433i Installation Instructions P/N: 45314C Page 3
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