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SRP-PET 4 1 2 3
CROW SCIENTIFIC RESEARCH
TM

SRP-PET 4

PASSIVE INFRARED QUAD
INTRUSION DETECTOR
WITH PET UP TO 90LBS IMMUNITY




ELECTRONIC ENGINEERING LTD.


INSTALLATION INSTRUCTIONS
P/N 71ii050

SRP-PET 4 FEATURES

Immunity to animals up to 90lbs.
Quad element pyrosensor.
Hard type full pattern spherical lens.
Sensitivity adjustment.
Automatic temperature compensation.
Low current consumption.
Height installation (calibration free) from
1.8m to 2.4m.
Environmental immunity.
High - tech design.




The SRP - PET 4 provides immunity to 40
kg (90 LB) pet active below 1m (3 ft).
For better immunity, avoid installation in
area reached by pet.
4 5 6
SELECTING MOUNTING LOCATION
Choose a location most likely to intercept an
intruder.
The quad-element high quality sensor detects
motion across the beam. It is slightly less
sensitive when detecting motion toward the
detector.
The SRP-PET 4 performs best when provided
with a constant and stable environment.

AVOID THE FOLLOWING LOCATIONS
Facing direct sunlight.
Facing areas subject to rapid quick
temperature changes.
Areas with air ducts or substantial air flows.


MOUNTING THE DETECTOR

For PET immunity mount flat on the wall or in the
corner.
It is recommended to mount the detector
between 7ft and 8ft for optimal coverage, and pet
immunity.

FIG. 1 - REMOVAL OF FRONT COVER

7 8 9
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. To remove the PC board, carefully loosen
the holding screw located on the PC board.
3. Break out the desired holes for proper wiring
as per fig 2.
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, set it as low as
possible - till stopper (see fig.2). Tight the
holding screw.
6. Access for wiring connections is very easy
via the terminal block located on the PCB.
See fig 3.
7. Replace the cover by inserting it back in the
appropriate closing pin until the closing click
is heard.

FIG. 2 - KNOCKOUT HOLES


10 11 12
FIG. 3 - TERMINAL BLOCK
-
+
TAMPER
NC
12VDC
RELAY
NC
MEM
1
2
3
4
5
6
7


NOTES for U.L. referring

countries
Connect the SRP-PET 4 to a U.L. listed
burglar alarm Power Supply or control panel
capable of providing standby power for at least
four (4) hours.
Refer to national electric code, NFPA-70 for
wiring methods.

TERMINAL BLOCK CONNECTIONS

Run the cable through the cable entry hole
and connect the wires in accordance with
the following instructions:
Terminal 1 - Marked - ( -12V gnd )
Connect to the negative Voltage output or
ground of the control panel.
Terminal 2 - Marked + ( +12V )
Connect to a positive Voltage output of 7.8-
16Vdc source (usually from the alarm control
unit).
Terminals 3 & 4 - Marked RELAY
These are the output relay contacts of the
detector. Connect to a normally closed zone in
the control panel.
Terminals 5 & 6 - Marked TAMPER
If a Tamper function is required connect these
terminals to a 24hour normally closed protective
zone in the control unit. If the front cover of the
detector is opened, an immediate alarm signal

Terminal 7 - Marked MEMORY
The alarm memory function allows the
identification of an alerting detector out of multiple
detectors connected to one (or the same) zone of
the control panel.
To enable this function, connect (switch on) the
M terminal to a switched +12 to +16V
DC
source
(e.g. Arm / Disarm voltage output from the control
panel.)
1.
In case of an alarm, the memory function
stores the alarm event in the detector.
2.
To identify the detector that alarmed,
disconnect (switch off) (grounded) the
voltage from M terminal.
3.
The LED of the detector with the alarm
event in memory will light constantly until
memory function is reset.
4.
To reset the memory function, switch on
and switch off the M terminal.

A. WIRE
ACCESS
HOLES (2)
B. USE
FOR
FLAT WALL
MOUNTING (2)
C. CORNER
MOUNTING -
USE ALL 4
HOLES. SHARP
LEFT OR
RIGHT ANGLE
MOUNTING -
USE 2 HOLES
(TOP AND
BOTTOM)

Stopper pins for PCB
13 14 15
FIG. 4 - PCB LAYOUT
TERMINAL


BLOCK
PIROSENSOR
TAMPER
RELAY

SENSITIVITY
ADJUSTMENT
+
_
LED
1 2
ON
DIP SWITCH
PCB
MOUNTING
HOLE
HOLDING SCREW

DIP SWITCH SETTING

PULSE COUNT
-
Dip Switch marked 2 (Fig. 4)
Provides control for normal or high risk operating
environments.
Position Off (down)
This setting is for a stable environment without
air drafts.
Position On - AUTOMATIC PULSE COUNT
The SRP-PET 4 will automatically select the
appropriate pulse count level (2 or 3) according to
the strength of the incoming signals.
This setting is for operation within a harsh
environment.
When an intrusion is detected, the led will light
on and the alarm relay contacts will transfer
condition for 1.6 sec.


LED ENABLE/DISABLE Dip Switch - marked 1
Position Off (down)- LED ENABLE - The led
will light when the SRP-PET 4 Is in alarm
condition.
Position On - LED DISABLE - The led is
disabled.
Note: the state of the dipswitch -1 does not affect
the operation of the relay.

SENSITIVITY ADJUSTMENT
Use this potentiometer (see fig. 4) to adjust the
detection sensitivity between 68% and 100%
(factory set to 84%). Rotate the potentiometer
clockwise to increase sensitivity. Rotate the
potentiometer counter-clockwise to

decrease
sensitivity.
IMPORTANT - After adjusting the sensitivity
perform a walk test to verify optimum correct
sensitivity in the protected area.


16 17 18
LENSES-INTERCHANGEABLE HARD
TYPE SPHERICAL LENSES PATTERN


COVERAGE WIDE
ANGLE
105
°
18m x 10m

______________________________________________________
TOTAL
DETECTION 52*
ZONES

18 long range, 16 intermediate, 10 short range,
nearest range, 2 creep zones.



NOTE:


DETECTION RANGES ARE SPECIFIED AT 20
°
C (68
° F) AMBIENT TEMPERATURE.

FIG. 5 - WIDE ANGLE LENS

19 20 21
CHANGING THE LENS
1.
Remove the front cover by inserting a flat
screw driver in the appropriate slot.
2.
Using a small flat screwdriver, press on left
or right side of the installed lens which will
then pop out from its side right and left
holding pins.
3.
Select the desired lens and hold it while
making sure its upper holding pin is pointed
upwards.
4.
Snap the lens to its place by pressing
again from outside of the front cover until a
click is heard, confirming the new lens is
tightly inserted. See fig 6.
5.
Replace front cover.

FIG. 6 REPLACING THE LENS


TEST PROCEDURES.
WAIT ONE MINUTE WARM-UP TIME AFTER
APPLYING 12 VDC POWER. CONDUCT
TESTING WITH THE PROTECTED AREA
CLEARED OF ALL PEOPLE.
Walk test
1. Remove front cover.
The pulse switch must be in OFF position.
The led must be enabled.
2. Replace the front cover.
3. Start walking slowly across the detection
zone.
4. Observe that the detectors led lights
whenever motion is detected.
5. After the walk test is completed, the led may
be disabled.
6. Allow 5 sec. between each test for the
detector to stabilize.
NOTE:
walk tests should be conducted, at least once a
year, to confirm proper operation and coverage of
the detector.
22 23 24
TECHNICAL SPECIFICATIONS

Power Input

7.8 - 16 Vdc
Current Draw

Active / Standby: 9 mA
Detection Method

Quad element PIR
Sensitivity

2°C (3.6°F) at 0.6 m/sec (2 ft/sec)
Detection Speed

0.5 - 1.5 m/sec (1.5 - 5 ft/sec)
Bi Directional Temperature

YES
Pulse Count

1,2-automatic switch from 2 to 3 depending


on speed spectrum analysis
Alarm Period

1.6 sec
Alarm Output

N.C 28VDC 0.1 A with 10 Ohm series

protection resistor
Tamper Switch

N.C 28VDC 0.1A with 10 Ohm series

protection resistor - open when cover

is removed
Warm Up Period

20 sec
LED Indicator

Led is blinking during warm up period and

self testing, Led is ON during alarm
Operating Temperature

-20°C to +50°C (-4°F to +122°F)
RFI Protection


30V/m 10 - 1000MHz
EMI Protection

50,000V of electrical interference from

lightning or power through
Visible Light Protection

stable against halogen light 2.4m(8ft) or


reflected light
Dimensions

106mm x 68.5mm x 57mm (4.2x2.7x2.3)
Weight

90 gr. ( 3.2 oz )
Crow reserves the rights to change
specifications without

prior notice
CROW LIMITED WARRANTY

(Crow) warrants this product to be free from defects in materials and workmanship under normal
use and service for a period of one year from the last day of the week and year whose numbers
are printed on the printed circuit board inside this product.
Crows obligation is limited to rep