"UL-325 Standard and the IRB-325 Approval Status"
As you may already know, the UL325 Standard will
cover the gate operators effectively March 1, 2000.
We at EMX have been following the UL regulation for
some years through our participation in the DASMA
organization.
One of the UL325 requirements for gate operators
is protection against entrapment. There are two types
of entrapment protections in the UL325 standard:
primary prtoection and secondary protection. Some
examples of primary protection could be, a current
sensing devise, clutch and position sensor. Secondary
protection may be a non contact sensor such as a
photoelectric sensor or contact sensor such as an
edge sensor.
The primary protection is supplied by the gate operator
manufacturer, while the secondary protection may
be connected externally to the operator and supplied
separately. In all cases make sure that the operator
and any safety equipment connected to the operator
is properly marked by labels certifying UL325 compliance.
Not every UL approval is the same. For the entrapment
protection equipment to be certified for use with
gate operators, it must comply with UL325 and must
be marked accordingly.
We are pleased to let you know that our infrared
photocells have been approved for use in UL325 applications.
The product number is IRB-325 and it is going to
be available in the first quarter of year 2000. The
IRB-325 is based on out time tested IRB-4X with minor
changes that were introduced in order to comply with
the UL325 standard.
When installing gate operators and entrapment protection
devices make sure that they comply with UL325 and
follow the manufacturer's instructions.
We are looking forward to continue serving you with
our range of sensors which we developed for the gate
operator market. If you have any questions regarding
the new UL325 standard or any of our products, please
call us.
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