Metz MECABLITZ 76 MZ-5 digital Mode D'emploi page 74

• When taking a series of flash shots at full light output and fast recycling
times as provided by NiMH battery operation, make sure to observe an
interval of at least 10 minutes after 20 flashes, otherwise the flash unit
will be overloaded.
• Never cover the ventilation slots and intake openings on the flashgun!
• As a result of the high light energy of a series of flashes shot with full
light output in quick succession, the diffuser becomes intensely heated in
zoom positions of 35 mm and less. In such an event the flash recycling
time is automatically extended in order to protect the mecablitz against
overheating.
• To remove the control unit's cable, press the gray release button against
the cable's plug while pulling out the cable (Fig. 1).
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When operated with an SCA adapter from the SCA 3002 system,
data exchange must have taken place between the flash unit and the
camera before activation of the flash function! For this, simply tap the
camera's release button lightly.