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PIRW3
5.2. Cleaning the pyro sensor
The pyro sensor must be clean at all times for optimum performance. If the
pyro sensor appears to have any dust, dirt or fingerprints on it, then it
should be cleaned.
To clean the pyro, use a soft cotton cloth (lint free and not a tissue), which
has been dampened with Metholated Spirits (Alcohol). Gently wipe across
the window of the pyro sensor with the dampened cloth.
5.3. Cleaning the case and lense
Detectors are often left in position for long periods and spiders or other
pests might stay around the detector. It is important that the lens,
especially, is kept clean of any spider webs or pests from being in front of
it. It is recommended to keep the whole case clean by wiping over it with a
soft cloth to remove dust, pests or other obstructions as required. This will
also reduce the risk of a false alarm due to pests. Do not spray on or near
the lens with insect/repellant spray. Remember not to move the position or
angle of the detector as it may affect the performance of the detector. If in
doubt, carry out a walk test to ensure the detector is operating correctly.
6. Warranty
While this system is an advanced
design security system, it does not offer guaranteed protection against burglary, fire or any 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 may be 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, they may not activate or provide early warning in
as many as 35% of all fires, for a variety of reasons, according to data published by the US Federal Emergency Management
Agency (Figures from USA Statistics only). 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 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 garage fire. Moreover, smoke detectors have sensing limitations. No smoke detector can sense every kind of fire. 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 the 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 diagrammed 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 the beams. They cannot detect motion or intrusion that takes place behind
walls, ceilings, floors, closed doors, glass partitions, glass doors, or window. 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
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