ADEMCO 4120XM Podręcznik Użytkownika Pobierz pdf (Strona 74)

WARNING

THE LIMITATIONS OF THIS ALARM SYSTEM

While this System is an advanced wireless security system, it does not offer guaranteed protection against burglary, fire

or other emergency. Any alarm system, whether commercial or residential, is subject to compromise or failure to warn

for a variety of reasons. For example:

Intruders may gain access through unprotected openings or have the technical sophistication to bypass an alarm

sensor or disconnect an alarm warning device.

Intrusion detectors (e.g., passive infrared detectors), smoke detectors, and many other sensing devices will not work

without power. Battery-operated devices will not work without batteries, with dead batteries, or if the batteries are not

put in properly. Devices powered solely by AC will not work if their AC power supply is cut off for any reason, however

briefly.

Signals sent by wireless transmitters (used in some systems) maybe blocked or reflected by metal before they reach

the alarm receiver. Even if the signal path has been recently checked during a weekly test, blockage can occur if a

metal object is moved into the path.

A user may not be able to reach a panic or emergency button quickly enough.

While smoke detectors have played a key role in reducing residential fire deaths in the United States, they may not

activate or provide early warning for a variety of reasons in as many as 35% of all fires, according to data published

by the Federal Emergency Management Agency. Some of the reasons smoke detectors used in conjunction with this

System may not work are as follows. Smoke detectors may have been improperly installed and positioned. Smoke

detectors may not sense fires that start where smoke cannot reach the detectors, such as in chimneys, in walls, or

roofs, or on the other side of closed doors. Smoke detectors also may not sense a fire on another level of a residence

or building. A second floor detector, for example, may not sense a first floor or basement fire. Finally, smoke

detectors have sensing limitations. No smoke detector can sense every kind of fire every time. In general, detectors

may not always warn about fires caused by carelessness and safety hazards like smoking in bed, violent explosions,

escaping gas, improper storage of flammable materials, overloaded electrical circuits, children playing with matches,

or arson. Depending on the nature of the fire and/or location of the smoke detectors, the detector, even if it operates

as anticipated, may not provide sufficient warning to allow all occupants to escape in time to prevent injury or death.

Passive Infrared Motion Detectors can only detect intrusion within the designed ranges as diagramed in their

installation manual. Passive Infrared Detectors do not provide volumetric area protection. They do create multiple

beams of protection, and intrusion can only be detected in unobstructed areas covered by those beams. They cannot

detect motion or intrusion that takes place behind walls, ceilings, floors, closed doors, glass partitions, glass doors, or

windows. Mechanical tampering, masking, painting or spraying of any material on the mirrors, windows or any part of

the optical system can reduce their detection ability. Passive Infrared Detectors sense changes in temperature;

however, as the ambient temperature of the protected area approaches the temperature range of 90° to 105°F (32° to

40”C), the detection performance can decrease.

Alarm warning devices such as sirens, bells or horns may not alert people or wake up sleepers if they are located on

the other side of closed or partly open doors. If warning devices are located on a different level of the residence from

the bedrooms, then they are less likely to waken or alert people inside the bedrooms. Even persons who are awake

may not hear the warning if the alarm is muffled by noise from a stereo, radio, air conditioner or other appliance, or by

passing traffic. Finally, alarm warning devices, however loud, may not warn hearing-impaired people.

Telephone lines needed to transmit alarm signals from a premises to a central monitoring station may be out of

service or temporarily out of service. Telephone lines are also subject to compromise by sophisticated intruders.

Even if the system responds to the emergency as intended, however, occupants may have insufficient time to protect

themselves from the emergency situation. In the case of a monitored alarm system, authorities may not respond

appropriately.

This ecwipment, like other electrical devices, is subiect to component failure. Even thoucrhthis eauiDment is desianed

to last as”long as 20 years, the electronic components could fail at any time.

. .

I_he most common cause of an alarm system not functioning when an intrusion or fire occurs is inadequate

maintenance. This alarm system should be tested weekly to make sure all sensors and transmitters are working

]roperly. The security console (and remote keypad) should be tested as well.

Nireless transmitters (used in some systems) are designed to provide long battery life under normal operating

:onditions. Longevity of batteries may be as much as 4 to 7 years, depending on the environment, usage, and the

lpecific wireless device being used. External factors such as humidity, high or low temperatures, as well as iarge

;wings in temperature, may all reduce the actual battery life in a given installation. This wireless system, however, can

dentify a true low batte~ situation, thus allowing time to arrange a change of battery to maintain protection for that

]iven point within the system.

nstalling an alarm system may make the owner eligible for a lower insurance rate, but an alarm system is not a

;ubstitute for insurance. Homeowners, property owners and renters should continue to act prudently in protecting

hemselves and continue to insure their lives and property.

Me continue to develop new and improved protection devices. Users of alarm systems owe it to themselves and their

oved ones to learn about these developments.

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