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The primary objective of our control system is to promote safety for
the student as well as the instructor in the science laboratory
learning environment. In order to achieve this goal, it is our
belief that the instructor should be granted sole, local authority
to determine those utilities that should be available to the student
during the course of the classroom day.
Dividing focus between, not only response to the potential
emergency, but likewise the prevention, our theory of operation
states that the utility outlets readily available to the student
should remain inactive unless specific need for use is determined
and thus granted by the instructor.
ISIMET defines four distinct operating hierarchies or states:
1. Enabled or Operational
2. Disabled or Non-Operational
3. Panic
4. Alarm
| ISIMET believes that sole and local authority means
that the primary operator or the instructors should have the
sole authority to start and stop the utility services within the
immediate area of use during normal usage. This should
distinguish this type of operating environment from that where a
single emergency shut-down device is located remotely from the
areas of use. As an example, the ISIMET system is not
specifically intended for use in applications where a master
shut-down and re-instate device is located away from areas of
normal use. ISIMET’s opinion is that in such cases there
is risk that the operator of the system during re-start may
inadvertently activate utilities in an unoccupied area that is
remote from the present occupancy, thus creating the risk of
fire or where the utility is fuel gas.
Additionally, the operation of emergency devices including
emergency showers and eyewashes should not be integrated with
this system for either activation or deactivation. |
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