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6 Instruction Manual
2 Overview of Features
2.1 Intended Use
The GT-1 is for permanent or temporary indoor use in venues where the distance to
illuminated surfaces is at least 16 M (52.5 ft.). It may be used outdoors if it is protected
from moisture and precautions are taken to prevent damage from direct sunlight.
It may be placed upright on a level surface or suspended from a suitable structure
as described in Section 3.3.
It is not suitable for household use, wherever unattended children have access to
it, for permanent outdoor installation, or in areas where the distance from the fixture
to illuminated surfaces is less than specified.
The GT-1 shall be installed, operated, and maintained only by persons with the
training, knowledge and skills to do safely and efficiently.
2.2 Lamp
The GT-1’s OSRAM SIRIUS HRI 440W lamp is a compact reflector lamp with a very
short arc and high light output optimized to create sparkling effects. The lamp was
developed specifically for moving heads to perform in any position. It outputs
22,000 lumens at a color temperature of 7300K with a color rendering index of 80.
The lamp’s average rated life is 1500 hours. It should be replaced every 1000 hours
to minimize the risk of lamp explosion.
2.3 Pan and Tilt
The GT-1 pans through 640° and tilts through 262° with coarse and fine control
channels and self-correcting position feedback. Position feedback can be disabled
and control of pan and tilt can be reversed from the control panel or by DMX.
2.4 Color
The GT-1 provides CMY color mixing with progressively saturated cyan, magenta, and
yellow wheels. The Old CMY curve setting is for use on prototype fixtures that had
different wheels.
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