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Application Note Page 2
Perimeter Security for Water Treatment Plants using Stealth-Flex and Outdoor Passive Infrared Sensors
Perimeter Security for Water Treatment Plants using Stealth-Flex and Outdoor Passive Infrared Sensors
The First Line of Defense - Stealth-Flex Fence Protection System
The Stealth-Flex system will detect intruders' attempts to climb, cut or break through the fence. A sensor cable is attached to the fence using cable ties at intervals of approximately 6 inches. The cable is connected to an analyzer, which processes the signal and determines whether it corresponds to the signal generated by an attack. An alarm is signaled via Form C contacts to a control panel located inside the protected premises.
A Stealth-Flex system is typically divided into zones. Each zone, consisting of a length of sensor cable and an analyzer, is reported separately to the control panel. Maximum length of a zone is 1000 feet. However, it is strongly recommended that shorter zones be used to allow easier identification of an alarm's location as well as coordination with cameras, as described later. Shorter zones will also make result in greater stability.
For more details of the Stealth-Flex system, click here
To download a specification sheet in pdf format, click here
The Stealth-Flex system will detect intruders' attempts to climb, cut or break through the fence. A sensor cable is attached to the fence using cable ties at intervals of approximately 6 inches. The cable is connected to an analyzer, which processes the signal and determines whether it corresponds to the signal generated by an attack. An alarm is signaled via Form C contacts to a control panel located inside the protected premises.
A Stealth-Flex system is typically divided into zones. Each zone, consisting of a length of sensor cable and an analyzer, is reported separately to the control panel. Maximum length of a zone is 1000 feet. However, it is strongly recommended that shorter zones be used to allow easier identification of an alarm's location as well as coordination with cameras, as described later. Shorter zones will also make result in greater stability.
For more details of the Stealth-Flex system, click here
To download a specification sheet in pdf format, click here
Continue to Next Page: Verification using outdoor PIRs
Analyzer mounted on fence post.
Sensor Cable
Installing the cable
End-of-line resistor provides supervision against cutting of cable.
Single zone analyzer. Maximum zone distance 1000 feet. Typical zone distance 500 feet or less to allow better localization of alarms or technical problems, provides enhanced stability and matching of detection range of outdoor PIRs, if used for verification.
Dual zone analyzer. Sensor cable runs in two directions.
Analyzer
EOL Resistor
EOL Resistor 1
EOL Resistor 2
Dual Zone
Analyzer
Analyzer
Minimize false alarms by grounding the system according to the instructions and cutting back vegetation and removing signs that could bang against the fence.