Coemar LEDKO EXT M, Manual, Page: 18 / 22

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. Maintenance . Maintenance
11.1 11.1
Firmware update Firmware update
The firmware of LEDko LEDko EXT M EXT M can be updates through the RDM protocol (ANSI E1.20). Contact
Coemar assistance to receive the software and the device updater.
11.2 11.2
Periodic cleaning Periodic cleaning
!Regular cleaning is essential for fixture life and performance. !Regular cleaning is essential for fixture life and performance.
Buildup of dust and dirt degrades the fixture’s light output and cooling ability. Buildup of dust and dirt degrades the fixture’s light output and cooling ability.
!To clean the housing and front cover Isolate the fixture from AC power and allow the fixture to !To clean the housing and front cover Isolate the fixture from AC power and allow the fixture to
cool for 20 minutes. cool for 20 minutes.
!Before closing the cover after each cleaning, remember to heat the LEDs for at least 20 minutes, !Before closing the cover after each cleaning, remember to heat the LEDs for at least 20 minutes,
so as to eliminate all traces of humidity. so as to eliminate all traces of humidity.
Lenses Lenses
Even a thin layer of dust can reduce the luminous output and alter the consistency of the beam.
Regularly clean all filters and lenses using a soft cotton cloth, dampened with a special lens
cleaning solution.
Cleaning of the unit Cleaning of the unit
Use a soft brush or a common vacuum cleaner or a source of compressed air for removing dust.
For the cleaning of the housing use a soft cloth and a non-aggressive cleaner, Lukewarm Water
or Mild Soap.
FORBIDDEN: (Abrasive Cleaners, Highly Alkaline Cleaners, Aromatic Solvents, Halogenated
Solvents, Brushes, Steel Wood).
Check that the internal fans (if provided in the product) and heat exchanger must be perfectly
clean.
Don’t use pressure washer or water jet, do not leave cleaners on plastic parts for a long period
and do not apply cleaners in direct sunlight or at elevated temperatures.