Profoto ProBallast 200/400, Руководство пользователя

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ProDaylight 200/400 Air
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functionality
Metal halide lamp
The ProDaylight Air unit is equipped with a powerful metal halide lamp, providing daylight
color temperature.
SAfETy PrEcAUTioN!
Profoto only uses UV-doped CSR-lamps, which emit a fraction of the hazardous UV radiation compared to classic
HMI type lamps. Never use other types of lamps than the ones specified by Profoto.
A cold metal halide lamp does not immediately begin producing its full light capacity. The
warm up period can be a few minutes. During that time, the color of the light may vary.
If the ProDaylight Air unit is turned off, it takes about two minutes before the warm lamp
can be turned on again. It is recommended to let the lamp run for at least
15 minutes after
turning it on, since turning the lamp on and off repeatedly considerably reduces the life
time of the lamp.
Glass cover
Metal halide lamps operate under high pressure and temperature, which calls for special
safety measures. The ProDaylight Air unit is equipped with a protective glass cover that
protects from lamp shattering and UV radiation. If the glass cover is not correctly mounted
(see page 12), it is not possible to turn on the ProDaylight Air unit and “LAMP” is shown in
the Display [F] on the ProBallast 200/400.
SAfETy PrEcAUTioN!
A damaged (cracked or scratched) glass cover must never be used! The level of UV protection provided by the glass
cover is matched to the lamp type specified by Profoto. Only use Profoto specified lamps.
The protective glass cover is available in different versions; with frosted and clear glass.
reflector
By mounting a reflector and placing it in different positions, using the Zoom Scale [6],
several light characteristics can be created for each lighting purpose. The unique rubber
collar fastening system provides secure and rapid handling of the reflectors, also when
hot.