detection pattern at a speed of 0.09 to 2.3 m/s 0.3 to 7.5 feet/second.
The microwave detector shall comply with 47 CFR 15, Subpart F. Controls
shall not be accessible when the sensor housing is in place. The sensor
shall be configured to produce an alarm when both detectors sense an
intruder.
2.6.8.1
Microwave Only Mode
The dual technology system shall have the capability of performing in a
microwave or radar mode only. The unit shall be able to be mounted above
ceiling tile or other non-metallic building materials. The range of
detection shall be selectable to allow specific coverage as shown.
2.6.8.2
Test Indicator
The sensor shall be equipped with an LED walk test indicator for both the
passive infrared detector and the microwave detector. The walk test
indicators shall not be visible during normal operations. When visible,
the walk test indicators shall light when the sensor detects an intruder.
The sensor shall either be equipped with a manual control, located within
the sensor's housing, to enable/disable the test indicators or the test
indicators shall be located within the sensor housing so that they can only
be seen when the housing is open or removed.
2.6.9
Photo-Electric Sensor (Interior)
a. The photo-electric sensor shall detect an interruption of the light
beam that links the transmitter and receiver or transmitter and reflector
caused by a by a beam break time of 50 ms. Upon detecting such an
interruption, the sensor shall transmit an alarm signal to the alarm
annunciation system. The alarm signal shall be either a normally closed or
a normally open contact closure. The sensor shall use a pulsed infrared
light source. Multiple sensors shall be able to operate within the same
zone without interfering with each other. The photoelectric sensor shall
be equipped with an alignment mechanism to support the installation
process. The coverage pattern shall be as shown.
b. The sensor shall be equipped with a walk test indicator. The walk test
indicator shall not be visible or audible during normal operations. When
visible, the walk test indicator shall light when the sensor detects an
intruder. The sensor shall either be equipped with a manual control,
located within the sensor's housing, to enable/disable the test indicator
or the test indicator shall be located within the sensor housing so that it
can only be detected when the housing is open or removed.
2.6.10
Seismic Detection Sensor
a. The seismic detection sensors shall detect attempts to break into
vaults, safes, night deposit boxes, and other reinforced physical areas
such as data storage and filing cabinets. The sensor(s) shall react to the
characteristic vibration patterns of all breaking-and-entering tools, such
as hammers and chisels, diamond saws, drills, hydraulic pressure tools and
thermic tools. The sensors shall allow for normal human activity around
the protected area minimizing the risk of false alarms, with multiple
increment sensitivity adjustments. Advanced signal processing shall
differentiate between ambient noise and real attacks. An internal circuit
shall provide a test output for measuring the ambient noise. The sensor
shall utilize a minimum of three analyzing channels tailored to specific
types of attack. The sensor shall have a MTBF of a minimum of 240,000
SECTION 13720A
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