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SRDT-15
PROFESSIONAL
PASSIVE INFRARED &
MICROWAVE DETECTOR
ELECTRONIC ENGINEERING LTD.
INSTALLATION INSTRUCTIONS
P/N: 7121287 REV.D A.Y.
SRDT-15 FEATURES
A new generation of professional
movement spread spectrum analyzing PIR
& MW detectors.
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Dual element PYRO sensor and hard lens for
outstanding detection performance and
elimination of false alarms.
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Microwave detection based on Doppler concept.
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Unique Microwave Motion Sensor Module with
microstrip patch antenna.
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VLSI based electronics with movement speed
spectrum analysis.
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AND & OR alarm signal selection.
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Height installation calibrations free.
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User-friendly installation with or w/o swivel
bracket.
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2-way Microwave sensitivity adjustment.
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2-way PIR sensitivity adjustment.
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BI directional temperature compensation.
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Environmental immunity.
The SRDT-15 is a combination of PIR & MW
detectors, providing protection from intruders by
PYRO sensor element and MW (based on Doppler
concept).
Using micro controller for PIR & MW signal
analyzing, with special ASIC technology for PIR
pulse processing, assure “false alarm free”
operation.
MOUNTING THE DETECTOR
Choose a location most likely to intercept an
intruder. (Our recommendation is a corner
installation). See detection pattern in Fig.: 5, 6.
The dual-element high quality sensor detects
motion crossing the beam; it is slightly less
sensitive detecting motion toward the detector.
The SRDT-15 performs best when provided with
a constant and stable environment.
NOTE
: recommended installation height is 2.1m
(option: 1.5m to 3.0m).
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AVOID THE FOLLOWING LOCATIONS
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Facing direct sunlight.
∗
Facing areas subject to rapid quick
temperature changes.
∗
Areas with air ducts or substantial air
flows.
∗
Facing metal doors.
WIRE SIZE REQUIREMENTS
Use the following table to determine required wire
gauge and length.
Wire Diameter mm .5 .75 1.0 1.5
Wire Gauge: # 22 20 18 16
Wire Length: m 205 310 510 870
Ft. 800 1200 2000 3400
FIG. 1 - REMOVAL OF FRONT COVER
1. To remove the front cover, insert a flat
screwdriver in the slot between the front and
the bottom above the holding screw hole and
push gently, until the front cover is
disengaged and the opening click is heard.
(Fig. 1)
2. Remove the printed circuit board by spread
out the two tabs, which are located on the
either side of the lower half of the board.
3. Break out the desired holes for proper wiring.
4. Insert the wire through the wire access hole,
and mount the detector base to the wall,
corner or ceiling with the necessary number of
screws and the suitable bracket.
5. Reinstall the PC board by place it on the lower
stoppers and push the PCB toward the
bottom cover.
6. Access for wiring connections is easy via the
terminal block located on the PCB. (Fig. 3)
7. Replace the cover by inserting it back in the
appropriate closing pin until the closing click is
heard.
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FIG. 2 - KNOCKOUT HOLES
C
B
A
D
C
A
B
B
B
B
B
B
B
C
C
D
C
C
FIG. 3 -
TERMINAL BLOCK
CONNECTIONS
Terminal 1 – Marked “ - ” ( GND )
Connect to ground of the control unit.
Terminal 2 – Marked “ + ” ( +12V )
Connect to a positive Voltage output of 8.2 -16Vdc
source (usually from the alarm control unit)
Terminals 3 & 4 - Marked “ RELAY ”
These are the output relays contacts of the
detector. Connect to a normally closed zone in the
control unit.
Terminals 5 & 6 - Marked “ TAMPER ”
If a Tamper function is required connect these
Terminals to a 24-hour normally closed protective
zone in the control unit. If the front cover of the
detector is opened, an immediate alarm signal will
be sent to the control unit.
FIG. 4 - PCB LAYOUT
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MW SENSITIVITY ADJUSTMENT
JUMPER “JP1”
-
provides sensitivity control of
MW (DOPPLER) according to the environment
.
Position Up – “H” – High sensitivity
For normal operation – immediately detection.
Position Down – “L” – Low sensitivity
For harsh environments.
POTENTIOMETER “RV1”
– adjustment
according to protected area range.
The potentiometer at mid-scale is equivalent to a
distance of 15m, at min-scale – 7m and
max-scale - is used with LR lens only.
Dimension change according to installation
location and room size
PIR SENSITIVITY ADJUSTMENT
JUMPER “JP4” -
provides sensitivity control of
PIR according to the environment.
Position Up – “H” – High sensitivity
For stable environments.
Position Down – “L” – Low sensitivity
For harsh environments.
POTENTIOMETER “RV2”
– adjustment
according to protected area range.
Use RV2 to adjust the detection range between
68% and 100% (factory set to 84%). Rotate the
potentiometer clockwise to increase range,
counter-clockwise to decrease range.
ALARM MODE SETTING
JUMPER “JP2” OR - AND
Position Left “OR”
The alarm signal (relays activation) occurred when
one of the sensor’s signals - PIR
OR
MW - is
present.
The effective detection range is the range of the
PIR pattern
OR
MW pattern correspondently.
Position Right “AND” -
The alarm signal
occurred only when both sensors (PIR
AND
MW)
are present at the same time.
The effective detection range is the range of which
the PIR patterns
AND
MW lobe are intersected.
You must reset the detector from
Control Panel before the new
settings will take effect.
2
A.
Wire access
holes
B.
Use for flat
wall mounting
C.
Corner
mounting -
use all 6
holes. Sharp
left or right
angle
mounting -
use 3 holes
(top, middle
and bottom)
D.
For bracket
mounting
- + RELAY TAMPER
1 2 3 4 5 6
After adjusting the sensitivity perform a
walk test to verify optimum correct
sensitivity in the protected area.
N345
