Wallace Perimeter Security ALPHA - Page 26

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EXTERNAL ENTRAPMENT PROTECTION SENSORS
UL 325 LISTING: The edge sensors and photo electric eyes must be tested and labeled as “Recognized
Components” under UL 325 in order to be deemed acceptable for use in a gate operator. Study the
“Important Safety Instrucons” on page 20 and consider your specic installaon to determine where
the greatest entrapment risks exist. Locate edge sensors and/or photoelectric sensors accordingly.
Be certain that a sucient number of sensors are used so that pedestrians are protected from entrapment
in both direcons of the gate travel and all hazard areas are fully protected. Refer to the UL website at
hps://www.ul.com/ for the most up-to-date list of gate operator safety standards (UL 325). Refer to
hps://www.astm.org/ for a complete list of ASTM F2200 Gate and Fence Standards.