Section 1: Getting Started
13
Laser Cooling Requirements and
Operating Temperatures
All Epilog Legend EX models use air-cooled laser tubes. Laser technology is such
that the laser tubes generate a lot of excess heat and the tubes must be cooled in order
for them to operate correctly. There are cooling fans and air vents that are located at
the back of the Legend EX machines that are dedicated to cooling the laser tubes, and
on high wattage systems, the lasers RF power supply. These cooling fans and vents
should never be covered or blocked in any way. Lasers that overheat will not operate
properly, and may begin to produce erratic laser output or possibly complete failure.
Ambient air temperature where the laser system is operating should not exceed 90
degrees F (32 C). Operating in an environment where the ambient air temperature is
above 90 degrees F (32 C) will void the Epilog warranty.
As outlined in the two prior sections – Connecting Electrical Power and Connecting
the Exhaust – the Legend TT is equipped with a switched exhaust outlet. This
switched outlet allows you to plug your exhaust blower into the TT. In addition to
evacuating the laser cavity, the exhaust blower on the TT laser system provides the
cooling air for the laser tube. When the exhaust blower is operating, it pulls air across
the cooling fins of the TT. This air flow across the fins is critical for keeping the
laser tube cool. When a job is running, the laser heats up and will overheat if there is
not a functioning exhaust blower pulling enough air over the laser to keep it cool.
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