Advertisement
Operation
Select a stand or support system of suitable weight and dimensions to ensure stable operation of the
unit. Ensure that the clamp screw is fully tightened. The angle of the head may be set using the locking
handle, always support the flash head before releasing the handle and never force adjustment without
releasing the handle.
Move the latch release back towards the rear of the unit, rotate and remove the plastic protective cap.
Always refit the cap when transporting the unit to avoid damage. NEVER operate the unit with the cap
still in place.
Before connecting the flash head to the pack confirm that the lamp, flash tube and cover glass are
securely fitted; particularly before first use or after transporting the unit. Refer to the section on
replacement if required. Never operate without the cover glass fitted.
The modelling lamp is controlled from the generator pack and will respond to all of the pack controls
including the dimmer option. The switch on the rear allows the modelling lamp of individual heads to be
turned off.
Modelling Lamp Replacement
Before attempting to replace the modelling lamp, switch off the pack and disconnect the flash head
cable. This is particularly important if the lamp glass is broken. Wait a few minutes for the lamp and tube
to cool.
Remove the glass dome by depressing both retaining buttons (for the QuadX head, or simply gently
slide the glass dome over the flash tube and modelling lamp for the Quad 3Km head) and carefully lifting
it off. Remove the lamp from the QuadX head by gently pulling it from its socket, for the Quad 3Km
gently unscrew the lamp from its fitting. Take care if the lamp envelope is broken - use a cloth or gloves.
Natural grease and oils from the hands can dramatically shorten the working life of a lamp so avoid
directly touching the glass envelope of the new lamp. Use the original packing or a clean cloth to grip
the lamp. Accidental contamination may be removed with a clean cloth and a small quantity of
methylated spirits.
Replacement is the reverse of removal but ensure that the lamp is fully inserted into the socket. If the
new lamp fails to light then check the lamp circuit breaker on the pack and the lamp fuse on the flash
head, as this may rupture when a lamp fails. Replace a blown fuse with one of the correct type and
rating, a spare 4A (F) fuse is included with every Quad flash heads.
4
www.bowens.co.uk
Avoid moving or knocking the unit when the lamp is switched on or when it has just been turned off since
the lamp filaments can be damaged when hot.
NOTE: Select and fit a modelling lamp suitable for the mains power supply voltage connected to the
generator. Only use lamps as recommended in the specification.
Before attempting to replace the flash tube, switch off the pack and disconnect the flash head cable.
Follow the instructions for removing the cover dome.
Unwind the twisted trigger wire from the terminal and carefully pull the flash tube assembly out of the
unit.
Avoid directly touching the glass envelope of the new tube by using the original packaging or a clean
cloth to grip the tube.
Gently locate the three brass sockets into the plugs in the front of the unit. Press down evenly until all
of the plugs and sockets are fully engaged. Pass the trigger wire through the hole in the trigger terminal
tag and wind around the tag, ensuring the trigger wire is kept well clear of the metal top hat. Trim off
excess wire and refit the cover glass.
To connect the flash head, first ensure the pack is switched off and disconnected from the mains supply.
Insert the tab on the front of the cable plug into the socket first and then press down firmly on the cable
entry end to ensure latched retention. To remove the plug, press the spring latch away from the plug
and lift from the cable entry end.
A range of reflectors and accessories are available for the flash head. Slide the neck of the reflector /
accessory over the front of the unit. Align the three pegs with the three slots in the retaining ring, press
down and turn clockwise to lock. Ensure that the latch release is in the closed position.
To remove any reflector / accessory, push the latch release towards the rear of the unit, turn the
reflector fully counter clockwise and withdraw.
Modelling Lamp Replacement
Flash Tube Replacement
Connection
Reflector / Accessory System
www.bowens.co.uk
5
Advertisement
