LockMaster SFG 18H User Manual page 5

G. The Stop and/or Reset button must be located in the line-of-sight of the gate. Activation of the reset
control shall not cause the opener to start.
H. A minimum of two (2) WARNING SIGNS shall be installed, one on each side of the gate where easily
visible.
I. For a gate opener utilizing a non-contact sensor in accordance Usage Class:
1) See instructions on the placement of non-contact sensors 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, and in the opening direction.
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.
J. For a gate opener utilizing a contact sensor in accordance with Usage Class:
1) One or more contact sensors shall be located where the risk of entrapment or obstruction exists, such as
at the leading edge, trailing edge, and post-mounted both inside and outside of a vehicular horizontal slide
gate.
2) One or more contact sensors shall be located at the bottom edge of a vehicular vertical lift gate.
3) One or more contact sensors shall be located at the pinch point of a vehicular vertical pivot gate.
4) A hardwired contact sensor shall be located and its wiring arranged so that the communication between
the sensor and the gate opener is not subjected to mechanical damage.
5) A wireless contact sensor such as one that transmits radio frequency (RF) signals to the gate opener 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.
6) One or more contact sensors shall be located on the inside and outside leading edge of a sliding gate.
Additionally, if the bottom edge of a sliding 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.
7) One or more contact sensors shall be located at the bottom edge of a vertical barrier (arm).
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