Chamberlain Miracle-One Instruction Manual page 4

E T L E T L E T L L I S T I N G S L I S T I N G S L I S T I N G S
G) For a gate operator utilizing a non-contact sensor such as a photo beam:
1. See instructions on the placement of non-contact sensor for each type of application.
2. Care shall be exercised to reduce the risk of nuisance tripping, such as when a vehicle
trips the sensor while the gate is still moving.
3. One or more non-contact sensors shall be located where the risk of entrapment or
obstruction exists, such as the perimeter reachable by a moving gate or barrier.
For a gate operator utilizing a contact sensor such as an edge sensor:
H)
1. A hard wired contact sensor shall be located and its wiring arranged so that the
communication between the sensor and the gate operator is not subjected to mechanical
damage.
2. A wireless contact sensor such as the one that transmits radio frequency (RF) signals to
the gate operator for entrapment protection functions shall be located where the
transmission of the signals are not obstructed or impeded by building structures, natural
landscaping or similar obstruction. A wireless contact sensor shall function under the
intended end-use conditions.
3. One or more contact sensors shall be located on the inside and outside leading edge of a
swing gate. Additionally, if the bottom edge of a swing gate is greater than 6 inches (152
mm) above the ground at any point in its arc of travel, one or more contact sensors shall
be located on the bottom edge.
A N D A N D A N D I N S T R U C T I O N S I N S T R U C T I O N S I N S T R U C T I O N S
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