area of the vibration sensor shall not exceed 5200 square mm 8 square inches.
2.6.7
Passive Infrared Motion Sensor
The passive infrared motion sensor shall detect changes in the ambient
level of infrared emissions caused by the movement of a standard intruder
within the sensor's field of view. Upon detecting such changes, the sensor
shall transmit an alarm signal to the alarm annunciation system. The
sensor shall detect a change in temperature of no more than 1.1 degrees C
2.5 degrees F, and shall detect a standard intruder traveling within the
sensor's detection pattern at a speed of 0.09 to 2.3 m/s 0.3 to 7.5 feet
per second across one or more adjacent segments of the field of view.
Emissions monitored by the sensor shall be in the 8 to 14 micron range.
The sensor shall be adjustable to obtain the coverage pattern shown. The
sensor shall be equipped with a temperature compensation circuit. The
sensor shall include an anti-masking feature to detect attempts at blocking
its field of view. The sensor shall incorporate signal-processing
technology to evaluate incoming signals and automatically adapt its alarm
threshold to improve detection and minimize false alarms, due to non-alarm
2.6.7.1
Test Indicator, Passive Infrared
The passive infrared motion sensor shall be equipped with an LED walk test
indicator. The walk test indicator shall not be visible 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 seen when the housing is open or removed.
2.6.7.2
Remote Test, Passive Infrared
A remote test capability shall be provided. The remote test hardware may
be integral to the sensor or a separate piece of equipment. The remote
test shall be initiated when commanded by the alarm annunciation system.
The remote test shall excite the sensing element and associated electronics
causing an alarm signal to be transmitted to the alarm annunciation system.
The sensor stimulation generated by the remote test hardware shall simulate
a standard intruder moving within the sensor's detection pattern.
2.6.8
Microwave-Passive Infrared Dual Detection Motion Sensor
The dual detection motion sensor shall be a single unit combining a
detector which detects changes in a microwave signal and a detector which
detects changes in the ambient level of infrared emissions caused by the
movement of a standard intruder within the detection pattern. The
detection pattern shall be adjustable and capable of covering a minimum of
90 degrees field of view and adjustable microwave ranges from 2.7 to 10.7 m
9 to 35 foot. Upon intruder detection by either detector, a time window of
more than 3 seconds but less than 8 seconds shall be opened. If the other
detector detects an intruder during this window, the sensor shall transmit
an alarm signal to the alarm annunciation system. The passive infrared
detector shall detect a change in temperature of no more than 1.1 degrees C
2 degrees F, and shall detect a standard intruder traveling within the
detection pattern at a speed of 0.09 to 2.3 m/s 0.3 to 7.5 feet/second
across one or more adjacent segments of the field of view. Emissions
monitored by the sensor shall be in the range of 8 to 14 microns. The
microwave detector shall detect a standard intruder moving within the
SECTION 13720A
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