Controlled Products Systems Group HTG 320-2 ST - Manual (Page 16)

StrongArm Installation and Reference 6
Install An Automatic Barrier Arm Gate Operator Only When:
 The operator will be properly electrically grounded and the intended supply voltage matches
the voltage label on the operator.
 The controls that operate the gate have been mounted far enough away from the moving
gate such that users cannot touch the gate while operating the controls. All easily
accessible controls must have a security feature to prevent unauthorized use.
 The operator controls will be located in a clear line-of-sight to the gate. Radio controls and
other remote access controls must be connected only to the Remote Open input.
 The required external entrapment sensors will also be installed. Be certain to carefully
review the instructions for placement, installation and adjustment of these external
entrapment sensors. If edge (contact) sensors are used, they are to be mounted on the
bottom edge, of the arm. If photo eyes or other non-contact sensors are used, they are to
be mounted in locations most likely to guard against entrapment. A combination of contact
and non-contact sensors may be used, but all must be recognized components under the
UL 325 standard. See pages 34 and 35 for details on the requirements.
 If the Entrapment protection is provided by a continuous pressure actuation control, a
placard stating ―WARNING‖ – ―Moving Gate has the Potential of Inflicting Injury or Death -
Do Not Start Gate Unless Path is Clear.‖ Additionally, no other activation device shall be
connected and an automatic closing device of any kind shall not be used.
 The automatic operator is labeled as appropriate for both the type and UL usage class of
the gate.
Class I: Intended to serve single to four family residential uses
Class II: Multi-family use, or any application intended to serve the general public
Class III: Commercial applications not intended to serve the general public
Class IV: Highest security. Security personnel prevent unauthorized access
 The barrier arm must not be installed in a manner that will move toward a rigid object closer
than two feet.