Profoto PRO-8A 2400 AIR - Manual (Page 11)

Pro-8a 2400 Air – Pro-8a 1200 Air
11
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ready lamp/test function
The ready lamp and test button functions are combined.
Ready lamp [10] is illuminated when the generator is fully charged and ready to flash.
Test Button [10] is used to test that all light settings are correct and that the functionally is
as expected. When the Test Button [10] is pressed, the generator will flash and the Ready
Lamp [10] will turn off while recharging. When the recharge of the generator is completed,
the Ready Lamp [10] will be illuminated again.
flash before ready
The ”Flash before ready” function makes it possible to flash before the recharging of the
generator is ready and fully completed. When a flash is released before the generator is
100% recharged a long ”beep” will sound, indicating an underexposed frame. Naturally
the flash light may not correspond fully to the set value. The underexposure of the frame
may be so small that it makes no significant difference, however it may be informative
to get the feeling of the maximum repetition rate. The underexposure frame may still be
usable if the catch of the moment was perfect.
fan cooling & Protection System
The Pro-8a generator is equipped with a very effective fan cooling to prevent over heating.
A microprocessor controlling and supervising the system is integrated for protection and
safety. Dual fans will normally operate in silent mode but will speed up automatically when
working in hot surroundings or continuously at higher power levels. Lower flash energy usage
and normal room temperature will slow down the fan speeds to be as silent as possible.
If there is risk for overheating of the generator, caused by abnormal external influence, the
protective system will automatically protect the generator from damage. The protective
system will slow down the recharging intervals and eventually the recharging will stop
completely. After a while, when the temperature has decreased sufficiently, the generator
will start recharging at a normal pace. This automatic protection will only interfere under
extreme conditions such as when the air vents are blocked.
The Pro-8a generator is designed to withstand up to 1000 full power flashes during one hour.
However it is not advisable to run harder than necessary due to the lifetime of the flash tube.
notice
The air vents of the generator must never be blocked or covered in any way. Nor should the generator be operated in an
enclosed small space. Never store your flash equipment in a car on a hot and sunny day longer than 30 minutes. Avoid
storage of the generator close or below the freezing point for more than 30 minutes. A cold generator may not work properly
or may even brake and will lose capacity (flash output). There is also a risk of failure because of condensation when a cold
generator is moved to a warmer surrounding. Remember that the generator has a great temperature storing mass and
will not adapt to the indoor normal surrounding temperature until after 1–3 hours. Never use a Pro-8a generator that has
been stored in abnormal temperatures for more than 1 hour. A well insulated case or transport box will prolong the time of
storage in abnormal temperature to 2 or 3 hours. Never operate the generator inside a case or transport box due to lack of
ventilation. Never expose any flash equipment to wet or humid environments or extreme electromagnetic fields.