PIR Alarm (490-0320A) Installation Faxback Doc. # 6618
READ THIS BEFORE INSTALLATION
The alarm's infrared motion sensor responds to rapid changes in
temperature. When an intruder enters a covered area, the sensor detects
the change in temperature. It detects an intruder's motion in 9 zones (6
upper and 3 lower). When a person or animal enters a detection zone, the
sensor detects the change in temperature and sounds the alarm.
Caution: Be sure to leave ALARM (on the back panel) set to OFF during
installation.
CHOOSING A LOCATION
Where you place and how you position the alarm affects the sensor's
coverage. Use the following suggestions for choosing a location and for
positioning the alarm as desired for your security needs:
* Choose a location that is near an AC outlet and where you can position
the alarm's sensor to cover entrance areas, such as front and back
doors or windows. You can turn the sensor window right or left to
cover the areas you want.
* For reliable operation, aim the sensor toward solid surfaces, such as
a wall or ceiling. If pets do not enter this area, you can aim the
sensor toward the floor. The sensor uses the surface as a steady
temperature reference.
* Place the alarm where an intruder would move across several zones.
The sensor is most sensitive to motion across its zones and less
sensitive to motion toward or away from the zones.
* For maximum coverage, choose a location that is 6 feet or more above
the floor. At 6 3/5 feet off the floor, the sensor reaches its maximum
range. At this location, the upper zones cover up to 30 feet from the
sensor with a 40 5/6-foot span at 30 feet. The lower zones cover up to
10 feet from the sensor with a 10 1/2-foot span at 10 feet.
Notes: Depending on where you place the alarm, the area directly under
and in front of the sensor might not be covered.
Never cover or try to change the color of the sensor window.
Avoiding False Alarms
When you choose a location, avoid the following conditions that could
cause false alarms.
* Where sunlight shines directly on the sensor
* Where heat sources, such as space heaters or radiators, are located
* Where strong drafts of air hit the sensor, such as from a central
heating vent or an air conditioner
* Where any openings constantly expose the sensor to outside elements
* Where animals would cross zones
* Where it is aimed at heating or air conditioning vents or ducts, an
exterior metal wall, a refrigerator, exposed light bulbs, fireplaces,
exterior windows, or anything air might move
If the sensor's lower zones are aimed at one of the areas mentioned, cover
the lower portion of the sensor with the supplied mask. Remove the mask
from the alarms bottom cabinet. Then, insert the mask's tabs into the
sensor window's slits.
ADDING OPTIONS
You can add optional devices to the alarm for more security and
convenience. Options you can add include back-up battery power, an
external alarm, an automatic telephone dialer, and a remote switch. (All
items are available at your local Radio Shack store.) If you choose not
to add any options, proceed to "Connecting Power." However, we do
recommend that you install batteries so the alarm functions even during a
power failure.
Adding Back-Up Battery Power
If you install batteries (not supplied), the alarm automatically switches
to battery power if AC power fails. The alarm can operate from the
batteries for about 40 hours with no alarm sounding, or for about two
full 5-minute alarm cycles. We recommend you install batteries to ensure
continued operation and protection. The alarm uses eight C alkaline
batteries, such as Radio Shack's Cat. No. 23-551. Follow these steps to
install batteries.
1. Use a small, flatbed screwdriver and remove the two screws that
secure the battery compartment cover.
2. Insert the screw driver into one of the screw holes. Then, lift up
the cover with the screwdriver.
3. Place the batteries in the compartment, observing the polarity
(+ and-) as marked inside the compartment.
4. Replace the battery compartment cover and fasten the screws.
When all the batteries are correctly installed, the ALARM/BATT TEST
indicator starts flashing and the alarm begins to warm up.
Notes: If the ALARM/BATT TEST indicator does not light when you press
and hold down ALARM/BATT TEST, replace all the batteries and
check the fuse. Test the batteries once a week.
Remove the batteries if you unplug the alarm for a week or more.
Replace the batteries every two years even if there are no power
failures.
Clean the battery contact points with a cloth every few months.
Adding an External Alarm
You can connect an external alarm to the EXT terminals on the back of the
alarm.
Use only a 12-16 volt DC siren that requires no more than 1 ampere of
current, such as Cat. No. 49-488.
Note: If you want to silence the internal alarm when you use an external
alarm, remove the jumper between the INT JUMP terminals. Loosen
the screws on the terminals, remove the jumper, and re-tighten the
screws. Keep the jumper for future use.
Adding a Remote Switch
You can add a remote arm/disarm switch to the alarm so you can arm/disarm
it from a remote location.
Use a remote switch such as a Digital Keypad (Cat. No. 49-535) or a remote
key plate (Cat. No. 49-524) and locking-contact switch (Cat. No.49-511 or
49-515). Do not use a momentary type remote switch.
1. Disconnect the jumper from the REMOTE SWITCH terminals on the back of
the alarm.
Note: Leave the jumper in place if you do not want to use a remote
switch.
2. Connect a remote switch to the REMOTE SWITCH terminals by following
the instructions provided with the remote switch.
3. After you complete all connections and testing, set ALARM to ARM so
that you can use the remote switch.
Adding an Auto-Dialer
You can add other devices, such as an automatic telephone dialer, to the
alarm's terminals. These terminals do not supply power but act as a
switch for the device's own power supply. The terminals turn on the
device's power supply when the sensor detects an intruder and turns off
the device's power supply when the alarm stops.
Any device you plan to connect to these terminals must have its own power
supply and the rating of the device must not exceed 24 volts DC, 1 amp, or
130 volts DC, 50 mA.
Use N.C. (normally closed) or N.O. (Normally open) terminals as needed
for the device you want to connect.
Note: If a telephone dialer is connected to the alarm, do not program it
to place a call to your police department unless you are authorized
to do so. This might be permitted by some law enforcement
agencies. If not, you can program the dialer to call a friend or
private security agency who, if needed, can call the police. The
communication capabilities of telephone autodialers have not been
investigated by U.L.
CONNECTING POWER
Plug the alarm's power cord into a standard AC outlet. Do not connect it
to a receptacle controlled by a switch.
The AC POWER indicator (on the back panel) lights.
Warming Up the Sensor
When you first install batteries or plug the alarm into AC power, wait
about 90 seconds before using or testing the alarm.
Securing the AC Power Cord
We supply a plastic clamp to help prevent the alarm's AC power cord
from being accidentally unplugged from the AC outlet.
To connect the clamp and cord to an AC outlet, follow these steps.
1. Turn off power to the outlet at the fuse box or breaker panel.
2. Follow the instructions for the type of outlet you want to use:
* For a standard, household, two-plug outlet, remove the screw that
secures the outlet cover. Then, secure the plastic clamp and the
outlet cover plate to the outlet by reinstalling the screw.
* For a four-plug outlet (such as in basements, garages, or workshops),
remove the screw that secures the corner of the outlet cover closest to
the power plug. Then, secure the plastic clamp and the outlet cover
plate to the outlet by reinstalling the screw.
3. Restore power at the fuse box or the breaker panel and test the alarm.
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