Hensel Expert D 250 SPEED Monolight - Manual (Page 6)

User Manual Expert D 250 Speed / D 500 / D 1000
6 HENSEL-VISIT GmbH & Co. KG
Not in Use During Dust Development
Equipment that is not in use when doing work that results in strong dust
development needs to be covered with suitable dust protection.
Safety Hints Pertaining to the Electrical System
Contact with the flash generator’s capacitor voltage is life threatening.
Therefore, opening the housing and repairs may only be done by
authorized customer service personnel:
 Never open the device – high voltage, risk of death!
 The unit may only be connected to a power supply with working
equipment grounding conductor.
 Use only lamp plugs with flawless contacts. Burned down or
corroded plug contacts may cause a fire.
 Defective plugs may lead to defective plug sockets.
 To prevent damages, avoid leading cables across floors. If this
cannot be avoided, make sure that the cable is not damaged by
vehicles, ladders, etc. Damaged cables and housings need to be
replaced immediately by authorized customer service personnel.
Explosion of Flash Tube
The flash tube is filled with xenon gas. There is negative pressure inside
the flash tube. Plasma develops during flashing due to electrical energy
being changed to radiation. This plasma development then causes
positive pressure inside the flash tube. At the same time, the glass tube is
exposed to strong mechanical forces. Minimal defects of the fused quartz
glass, visually impossible to notice, may possibly lead to the explosion of
the flash tube.
 In case the flash tube explodes, there is a danger of tiny glass
particles flying around. The user of this equipment needs to make
sure to protect himself by the use a safety glass dome.
 The flash tube can only explode during the flash process.
Therefore, the flash head should never be directed at a person
during flashing.