AST Digital Magazine February 2017 AST Digital Magaiinse Volume 10 | Page 24

Volume 10
and closed , is needed to help protect our vital communications and power infrastructures installed in manholes and underground vaults .
Monitoring of manholes near public venues where many people gather also would be beneficial to immediately alert authorities of any unauthorized entry ; such monitoring would help maintain perimeter security and improve public safety .
Desirable attributes of a suitable manhole / vault cover intrusion detection system include the following :
Feb 2017 Edition resistant to corrosion
• Sensors that are intrinsically safe for use in explosive atmospheres
• Sensors located in each manhole / vault that do not require electrical power
• Sensors and interconnecting lines that emit no signals and are immune to electrical interference
• Sensors that cannot be bypassed without detection
• Sensors that may be deployed kilometers distant from remote monitoring equipment , if required
The CEL Solution
LCM-610 sensor
• Reliably , continuously and simultaneously monitoring of the position of multiple manhole covers
• Individual and unique identifiers for every manhole or vault in which the system is installed
• Immediately report a change in the position of any manhole or vault cover
• Sensors that are environmentally rugged and
LCM-610 sensor in protective cowling , mounted to concrete manhole wall using adjustable adapter plate
An effective solution exists in LCM-6100 manhole cover position sensing systems , which are
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