Digital Security Controls Ltd. 119057G Manuale Utente

N o t e   t o   I n s ta l l e r s
This warning contains vital information. As the only individual in con-
tact with system users, it is your responsibility to bring each item in this
warning to the attention of the users of this system.
S y s t e m   F a i l u r e s
This system has been carefully designed to be as effective as possible.
There are circumstances, however, involving fire, burglary, or other
types of emergencies where it may not provide protection. Any alarm
system of any type may be compromised deliberately or may fail to
operate as expected for a variety of reasons. Some but not all of these
reasons may be:

A security system must be installed properly in order to provide ade-
quate protection. Every installation should be evaluated by a security
professional to ensure that all access points and areas are covered. Locks
and latches on windows and doors must be secure and operate as
intended. Windows, doors, walls, ceilings and other building materials
must be of sufficient strength and construction to provide the level of
protection expected. A reevaluation must be done during and after any
construction activity. An evaluation by the fire and/or police department
is highly recommended if this service is available.

This system contains security features which were known to be effective
at the time of manufacture. It is possible for persons with criminal intent
to develop techniques which reduce the effectiveness of these features.
It is important that a security system be reviewed periodically to ensure
that its features remain effective and that it be updated or replaced if it is
found that it does not provide the protection expected.

Intruders may enter through an unprotected access point, circumvent a
sensing device, evade detection by moving through an area of insuffi-
cient coverage, disconnect a warning device, or interfere with or prevent
the proper operation of the system.

Control units, intrusion detectors, smoke detectors and many other secu-
rity devices require an adequate power supply for proper operation. If a
device operates from batteries, it is possible for the batteries to fail.
Even if the batteries have not failed, they must be charged, in good con-
dition and installed correctly. If a device operates only by AC power,
any interruption, however brief, will render that device inoperative
while it does not have power. Power interruptions of any length are
often accompanied by voltage fluctuations which may damage elec-
tronic equipment such as a security system. After a power interruption
has occurred, immediately conduct a complete system test to ensure that
the system operates as intended.

This system’s wireless transmitters have been designed to provide sev-
eral years of battery life under normal conditions. The expected battery
life is a function of the device environment, usage and type. Ambient
conditions such as high humidity, high or low temperatures, or large
temperature fluctuations may reduce the expected battery life. While
each transmitting device has a low battery monitor which identifies
when the batteries need to be replaced, this monitor may fail to operate
as expected. Regular testing and maintenance will keep the system in
good operating condition.

Signals may not reach the receiver under all circumstances which could
include metal objects placed on or near the radio path or deliberate jam-
ming or other inadvertent radio signal interference.

A user may not be able to operate a panic or emergency switch possibly
due to permanent or temporary physical disability, inability to reach the
device in time, or unfamiliarity with the correct operation. It is impor-
tant that all system users be trained in the correct operation of the alarm
system and that they know how to respond when the system indicates an
alarm.

Smoke detectors that are a part of this system may not properly alert
occupants of a fire for a number of reasons, some of which follow. The
smoke detectors may have been improperly installed or positioned.
Smoke may not be able to reach the smoke detectors, such as when the
fire is in a chimney, walls or roofs, or on the other side of closed doors.
Smoke detectors may not detect smoke from fires on another level of
the residence or building.
Every fire is different in the amount of smoke produced and the rate of
burning. Smoke detectors cannot sense all types of fires equally well.
Smoke detectors may not provide timely warning of fires caused by
carelessness or safety hazards such as smoking in bed, violent explo-
sions, escaping gas, improper storage of flammable materials, over-
loaded electrical circuits, children playing with matches or arson.
Even if the smoke detector operates as intended, there may be circum-
stances when there is insufficient warning to allow all occupants to
escape in time to avoid injury or death.

Motion detectors can only detect motion within the designated areas as
shown in their respective installation instructions. They cannot discrimi-
nate between intruders and intended occupants. Motion detectors do not
provide volumetric area protection. They have multiple beams of detec-
tion and motion can only be detected in unobstructed areas covered by
these beams. They cannot detect motion which occurs behind walls,
ceilings, floor, closed doors, glass partitions, glass doors or windows.
Any type of tampering whether intentional or unintentional such as
masking, painting, or spraying of any material on the lenses, mirrors,
windows or any other part of the detection system will impair its proper
operation.
Passive infrared motion detectors operate by sensing changes in temper-
ature. However their effectiveness can be reduced when the ambient
temperature rises near or above body temperature or if there are inten-
tional or unintentional sources of heat in or near the detection area.
Some of these heat sources could be heaters, radiators, stoves, barbe-
cues, fireplaces, sunlight, steam vents, lighting and so on.

Warning devices such as sirens, bells, horns, or strobes may not warn
people or waken someone sleeping if there is an intervening wall or
door. If warning devices are located on a different level of the residence
or premise, then it is less likely that the occupants will be alerted or
awakened. Audible warning devices may be interfered with by other
noise sources such as stereos, radios, televisions, air conditioners or
other appliances, or passing traffic. Audible warning devices, however
loud, may not be heard by a hearing-impaired person.

If telephone lines are used to transmit alarms, they may be out of service
or busy for certain periods of time. Also an intruder may cut the tele-
phone line or defeat its operation by more sophisticated means which
may be difficult to detect.

There may be circumstances when the system will operate as intended,
yet the occupants will not be protected from the emergency due to their
inability to respond to the warnings in a timely manner. If the system is
monitored, the response may not occur in time to protect the occupants
or their belongings.

Although every effort has been made to make this system as reliable as
possible, the system may fail to function as intended due to the failure of
a component.

Most problems that would prevent an alarm system from operating as
intended can be found by regular testing and maintenance. The com-
plete system should be tested weekly and immediately after a break-in,
an attempted break-in, a fire, a storm, an earthquake, an accident, or any
kind of construction activity inside or outside the premises. The testing
should include all sensing devices, keypads, consoles, alarm indicating
devices and any other operational devices that are part of the system.

Regardless of its capabilities, an alarm system is not a substitute for
property or life insurance. An alarm system also is not a substitute for
property owners, renters, or other occupants to act prudently to prevent
or minimize the harmful effects of an emergency situation.