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General Information
WARNING: This manual contains information regarding the operation of PC-900G® and its
restrictions/limitations; therefore, it must be read carefully.
Limited warranty: Alonso Hnos. Sirenas S.A. (the seller) guarantees that its products are
free of both material and manufacture defects with normal use throughout a year. Except
what is specically mentioned herein, all guarantees, either express or implied, statutory
or of any other kind, any implied guarantee of marketability or adaptability for a specic
purpose, are expressly excluded. Due to the fact that the seller does not install or connect
the products and because the products may be used with products that are not
manufactured by the seller, the seller cannot guarantee the performance of the security
system and shall not be responsible for the circumstances resulting from the inability of
the product to work. The seller’s obligation under this warranty is expressly limited to the
repair or replacement, according to the seller, of any product that does not comply with
the specications. Product returns must include the purchase invoice and must occur
within the warranty term. Under no circumstance shall the buyer or any other person make
the seller responsible for any loss or damage, either direct or indirect, including, but not
limited to any damages caused by benets loss, stolen goods or third-party claims, that are
caused by defective items, or incorrect use or installation of the product. Notwithstanding
the above, the seller’s maximum responsibility is strictly limited to the purchase price of
the defective product. The use of this product means the acceptance of this warranty.
ATTENTION: Distributors, installers and/or others that sell the product are not authorized to
modify this warranty or establish additional warranties that compromise the seller.
WARNING: Please read carefully.
Note for the installers
This warning contains vital information aimed at the sole person in contact with the user
system. It is their responsibility to consider each section of this warning for the attention of
the users of this system.
System aws
The system has been carefully designed to be as eective as possible. However, there are
certain circumstances such as re, burglary or other types of emergencies for which
protection cannot be provided. Any alarm system could be deliberately compromised or
may fail when operating for a number of reasons, namely:
Incorrect installation
A security system must be correctly installed in order to provide adequate protection.
The equipment cannot be installed in places where it is exposed to humidity or spills.
Each installation must be assessed by a security professional to ensure that all points and
access areas are covered. Locks and hooks in windows and doors must be secure and work
according to their design. Windows, doors, walls, ceilings and other materials must have
enough strength so as to provide the expected level of protection. A reassessment must be
done during and after any construction activity. If available, an assessment by the police or
reghters department is highly recommended. The equipment must be installed in rooms
with temperatures between 0ºC and 70ºC.
Criminal knowledge and sabotage
This system contains security characteristics that were considered eective at the moment
of manufacturing. It is possible that people with criminal intentions develop techniques
that could reduce the eectiveness of these characteristics. It is very important that the
security system is checked periodically in order to ensure that its characteristics remain
eective, and that are updated or replaced if they do not provide the expected protection.
Access by intruders
Intruders may enter through an unprotected access point, get by a sensor device, evade
detection by moving through an insuciently covered area, disconnect a warning device,
interfere or avoid the correct performance of the system.
Power glitch
Control units, intrusion detectors, smoke detectors and many other security devices require
sucient power supply in order to perform correctly. If a device uses batteries, it is possible
that the batteries fail. Even so, these should be charged in good conditions and correctly
installed. If a device uses alternating current (AC), any interruption, even a slow one, will
prevent the device from working as long as there is no power. Power outages of any duration
often occur together with voltage uctuations, which may damage electronic devices such as
security systems. Immediately after a power outage occurs, you should do a complete test of
the system to ensure that the system is working properly.
Compromised wireless devices
The signal will not reach the receptor under all circumstances, which include metallic objects
placed near the receptor or deliberate interference.
Failure of replaceable batteries
The expected lifetime of the battery will depend on the environment, the usage and the type
of device. Environmental conditions such as excessive humidity, high or low temperatures,
or temperature uctuations may reduce the battery lifetime. Regular tests and maintenance
will keep the system in good operating conditions.
System users
It is very important that all system users are trained in the correct operation of the alarm
system and that they know how to respond to an alarm.
Smoke Detectors
Smoke detectors, which are part of the system, may not alert the people inside about a re
for a number of reasons, some being the following: smoke detectors might have been wrongly
installed or positioned. The smoke cannot reach the smoke detectors, like when the re is
in the chimney, walls or roofs, or on the other side of closed doors. Smoke detectors cannot
detect smoke of res coming from other oors of the residence. Each re is dierent in the
amount of smoke they produce and speed. Smoke detectors may not detect equally well all
types of res. Smoke detectors cannot quickly warn about res caused by neglect or lack of
safety like smoking in bed, violent explosions, gas leaks, incorrect storage of fuels, overloaded
electric circuits, playing with matches or arson. Even if the smoke detector works as it is desig-
ned, there may be circumstances where there is insucient warning time to allow the people
inside to escape in time to avoid injuries or death.
Movement Detectors
Movement detectors can detect movement only within the designated areas, as shown in the
corresponding installation instructions. The detectors do not distinguish between intruders
and/or inhabitants of the premises or property, and they do not provide a volumetric area of
protection either. These have multiple detection rays and movement can only be detected in
non obstructed areas that are covered by those rays. The detectors cannot detect movement
behind walls, ceilings, oors, closed doors, and divisions, doors or windows made of glass.
Any type of sabotage, either intentional or not, will be prejudicial to the detectors’ correct
operation. Passive infrared movement detectors operate by detecting changes in
temperature. However, their eectiveness may be reduced when the room temperature
rises to or above body temperature, or if there are intentional or unintentional sources of
heat within or close to the area of detection. Some sources of heat may be heaters, radiators,
stoves, roasters, chimneys, solar light, etc.
Warning Devices
Warning devices such as sirens, bells, horns or stroboscopic devices will not alert or wake
someone up if there is a door or wall in between. If the warning devices are located in a
dierent level of the premises, it is less likely that the people inside can be warned or waken
up. Audible warning devices may suer interference from other sources of noise such as
sound systems, radios, T.V., air conditioners, etc.
Audible warning devices, even those with a strong noise, may not be heard by people with
hearing conditions.
Telephone lines
If telephone lines are used to transmit alarms, they may be out of service or busy for some
time. Also, an intruder may cut the line or sabotage its operation by more sophisticated
means, which would be very dicult to detect.
Insucient time
There may be circumstances when the system works as per its design and even so, the people
inside will not be protected against emergencies due to their inability to respond to
the warnings in time. If the system is supervised, the response may not occur in time to
protect the people inside or their belongings.
Component Failure
Despite all eorts made towards the system reliability, it can fail in its operation due to a
component failure.
Incorrect Test
Most troubles/failures of an alarm system may be found through tests and regular
maintenance. All the system must be tested on a weekly basis and immediately after
an intrusion, re, storm, earthquake, accident or any type of construction activity inside or
outside the premises. The test must include all the devices that are part of the system, like
sensors, keypads, sirens, etc.
Security and Insurance
Despite all its capabilities, an alarm system is not a replacement of a life or property
insurance. An alarm system is not a replacement for the property owners, tenants or others
to act carefully in order to prevent or minimize the harmful eects of an emergency situation.
