i) For gate operators utilizing a non-contact sensor:
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
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 operator utilizing a contact sensor:
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 postmounted 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 operator is not subjected to mechanical damage.
5) A wireless contact sensor such as 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.
6) 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.
7) One or more contact sensors shall be located at the bottom edge of a vertical barrier (arm).
Instruction regarding intended operation of the gate operator shall be provided as part of the user instructions or as a
separate document. The following instructions or the equivalent shall be provided
NOTICE
As for misunderstandings that may arise refer to your area distributor or call our help desk. These instructions are part
of the device and must be kept in a well known place. The installer shall follow the provided instructions thoroughly.
SEA products must only be used to automate doors, gates and wings. Any initiative taken without SEA USA Inc. explicit
authorization will preserve the manufacturer from whatsoever responsibility. The installer shall provide warning notices
on not assessable further risks. SEA USA Inc. in its relentless aim to improve the products, is allowed to make
whatsoever adjustment without giving notice. This doesn’t oblige SEA to up-grade the past production. SEA USA Inc.
can not be deemed responsible for any damage or accident caused by product breaking, being damages or accidents
due to a failure to comply with the instructions herein. The guarantee will be void and the manufacturer responsibility
will be nullified if SEA USA Inc. original spare parts are not being used.
The electrical installation shall be carried out by
a professional technician who will release documentation as requested by the laws in force.
Packaging materials such
as plastic bags, foam polystyrene, nails etc must be kept out of children’s reach as dangers may arise.
To respect the norms in force it is recommended to use the ENCODER SYSTEM together with the electronic
control units
Starting on Jan. 12, 2016, new UL 325 changes take effect, bringing a series of new mandates for the gate operator
industry. Here’s a quick guide to the key modifications.
1. Entrapment-Protection Devices.
Gate operators are required to have a minimum of two independent means of
entrapment protection where the risk of entrapment or obstruction exists. A manufacturer can use two inherent-type
systems, two external-type systems, or an inherent and an external system to meet the requirement. However, the
same type of device cannot be used for both means of protection.
2. Monitoring Required.
An external non-contact sensor or contact sensor may be used as a means of entrapment
protection. However, the sensor must be monitored once every cycle for (1) the correct connection to the operator and
(2) the correct operation of the sensor.
If the device is not present, not functioning, or is shorted, then the gate operator can only be operated by constant
pressure on the control device. Portable wireless controls will not function in this case.
3. Entrapment Risk Identification.
As in the past, it’s up to the installer to examine the installation and determine
where a risk of entrapment or obstruction exists. Manufacturers are required to provide instructions for the placement
of external devices, but they give only examples of suggested entrapment protection in their installation manuals. If the
installer identifies a risk of entrapment or obstruction, at least two independent means of entrapment protection are
required.
4.
Terminology Change.
The terms “primary” and “secondary” have been removed in the description of entrapment
protection devices. This was done to emphasize that all entrapment protection devices are equally important.
Changes to UL 325 ED. 6th for Gate Operators
