Bowens ESPRIT DIGITAL 750 Operating Instructions Manual page 4

Esprit Digital 750 Operating Instructions
QUICK START GUIDE
The Esprit Digital 750 is very simple to operate once the user has become familiar with the
controls. Detailed operating instructions are given after this Quick Start Guide.
Mounting
Mount the unit on a stand or support system of suitable weight and dimensions to ensure
stable operation of the unit. Ensure that the clamp knob is fully tightened.
Protective Cap
Slide the latch knob back towards the rear of the unit, rotate and remove the plastic
protective cap over the glass cover dome. Always refit the cap when transporting the unit to
avoid damaging the cover dome, flash tube or modelling lamp. NEVER operate the unit with
the cap still in place.
Modelling Lamp
First ensure that the unit is switched off and disconnected from the supply. Confirm that the
lamp and flash tube are securely fitted, particularly before first use or after transporting the
unit. IMPORTANT - Ensure that a modelling lamp rated for the local AC Line voltage is
fitted. Refer to the section on fitting/changing the lamp if required.
Reflector/Accessory System
Fit the desired reflector or accessories and ensure that the latch knob is in the closed
position.
An umbrella mount is available on the mounting bracket. Insert the umbrella shaft, adjust for
distance and secure by tightening the thumb wheel onto the shaft.
AC Supply
Ensure that the AC ON/OFF switch on the unit is set to OFF. Fit the line cord into the AC
inlet socket under the unit and then plug the cord into a suitable AC supply. A 3-wire,
earthed (grounded), supply system must be used to ensure safe and reliable operation of the
unit. The unit will automatically adjust for any AC Line voltage within the ranges 90V to 130V
and 190V to 253V with a nominal frequency of either 50Hz or 60Hz.
Triggering System
Fit the desired trigger source to the SYNC jack socket underneath the unit or use the built-in
Photocell.
Operation
Set the AC ON/OFF switch under the unit to ON. The control panel display at the rear of the
unit will light and, after a short time, the green 'READY' indicator should light. If this does not
happen then switch the unit off and refer to the fault finding section.
Adjust the POWER, FLASH & MODELLING controls to provide the desired settings and
select any options required. Refer to the section on operation of the controls if required.
Test flash the unit by pressing the TEST button.
Refer to page 12 if you intend to make continuous use of the fast recycling feature of the unit.
NOTE: If the unit is left unused for 6 months or predominantly used at low power settings it
is recommended that the power be increased to maximum and the unit left switched on
occasionally for at least 30 minutes to help preserve the life of the capacitors.
You are now ready to use the system.
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Esprit Digital 750 Operating Instructions
MODELLING LAMP REPLACEMENT
Before attempting to replace the modelling lamp always switch the unit off and unplug it from
the supply. This is particularly important if the lamp glass is broken. Wait a few minutes for
the lamp and tube to cool and for the unit to self-discharge. The unit has a flash off and
auto-dump feature that operates whenever the unit is switched off. This is designed to
quickly reduce the capacitor voltage to a 'safe' value but it is still advisable to leave the unit
for as long as possible before changing either the lamp or flash tube.
Remove the glass dome by depressing both buttons and carefully lifting it off. Remove the
lamp by gently pulling it from its socket. Take extra 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 envelope. 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 its
socket. If the new lamp fails to light then check the lamp fuse, as this will often rupture when
a lamp fails. Replace a blown fuse with one of the correct type and rating. Always ensure
that any spare fuses are replaced to avoid being without a replacement. For your
convenience these are stored under the rubber covers either side of the handle.
N.B. For maximum safety and lamp life always use the recommended lamp type.
The unit has a built-in 'soft start' feature to enhance lamp life but this can be improved further
by dimming or turning the lamp OFF whenever possible. This will also reduce the heat
dissipated by the unit. Avoid moving or knocking the unit when the lamp is switched on or
when it has just been turned off since lamp filaments can be damaged when hot.
FLASH TUBE REPLACEMENT
Before attempting to replace the flash tube always switch the unit off and unplug it from the
supply. Follow the instructions above for removing the cover dome. Avoid directly touching
the glass envelope of the new tube by using the original packing or a clean cloth to grip the
envelope. Remove the trigger wire first and then gently pull the tube from its sockets.
Replacement is the reverse of removal but ensure that the tube is fully inserted into its
socket. Carefully pass the trigger wire through the hole in the trigger tag and tightly wrap the
excess around the tag and back up the wire ensuring that it is kept well away from the metal
base. The wire may be trimmed back if there is too much excess.
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