Wallace Perimeter Security ALPHA - Page 30

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UL 325 COMPLIANT SENSORS
Recommended External Entrapment Protecon Sensors List for the SmartDC Controller – Kinec Operator
Excerpts from UL 325 Standard:
The operator shall monitor for the presence of every device at least once during each open and close
cycle. (Clause 32.1.8 of the Standard)
It shall not be possible to make simple modicaons in the eld by adding, suppressing or changing, either
on the operator or external entrapment protecon device(s), to bypass, interfere with, or otherwise
defeat the monitoring funcon. (Clause 32.1.10 of the Standard)
Entrapment zones are now dened for each gate type. (Clauses 4.23, 4.24, 4.29, 4.34 of the Standard)
Slide Gates: To enable fully automac operaon, all SLIDE gate operators will require a minimum of TWO
monitored external entrapment protecon sensors (one for each direcon) to protect entrapment zones
in both the open and close direcon of travel.
Preferred soluon for slide gates: A photo eye for the close direcon and a hard-wired edge sensor for
the open direcon that is mounted to the face of the leading post of the fence behind the gate. (Reach-
through injuries are the most common hazard associated with automac sliding gates).
Installers must assess each specic site and install sensors that protect all potenal entrapment zones.
See gure below; EYE CLOSE and EDGE OPEN are programmed at the appropriate sensor inputs (1, 2 or 3).