Esprit Digital 750 Operating Instructions
Esprit Digital 750 Operating Instructions
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WARNINGS & FAULT FINDING
If the unit appears to have developed a fault, first establish that it is a genuine internal fault
and not a case of normal operation such as overheat. Carry out the following checks to
eliminate any external causes. If no obvious problem can be found and replacement of the
modelling lamp, flash tube or fuses do not effect a cure then it is likely that an internal fault
has developed. Always return the unit to an authorised service centre if a fault is suspected
after these checks. UNDER NO CIRCUMSTANCES SHOULD YOU ATTEMPT ANY
REPAIR yourself.
MIS-FIRE Warning
If the unit receives a trigger signal from any of the valid sources (TEST, IR REMOTE, IR
TRIGGER, SYNC) but fails to flash for any reason then the display will flash continuously
and the sounder will beep (if on). Press any button, apart from TEST, to stop this alarm.
Increase the power setting to maximum and use the TEST button to try and flash again. If
the problem continues to happen on more than the odd occasion, particularly at lower power
settings, then it is likely that the tube is wearing out. Before replacing the tube, check that
the trigger wire is correctly connected and is not shorted to or in close proximity to the metal
reflector. If the unit fails to flash at all then check the flash tube for signs of damage or
overheating.
If the unit fails to flash and the display warning is not given then the Sync. lead and/or
camera should be suspected. If possible check these with another flash system. Check the
polarity of the Sync. from the camera and use an adapter to reverse it if necessary. The
DIGITAL 750 supplies a positive SYNC. voltage of 14V with respect to the chassis Ground.
OVERHEAT Warning
The unit is fitted with overheat detectors that turn the modelling lamp off and inhibit charging
until the unit has cooled sufficiently. The display flashes ‘OH’ and the fan continues to cool
the unit while the overheat condition exists. An audible warning is not given since this may
last for some time. Overheat will normally only occur if the unit is flashed repeatedly at a fast
repetition rate or if the cooling fan has failed. Listen for the fan running. Slowing down the
repetition rate will normally help keep the unit out of overheat. Dimming the modelling lamp
or turning it off may also help.
NOTE: The controls are inhibited during overheat to prevent inadvertent changes being
made. If the lamp was on before the OH condition existed then the lamp display will show it
as being temporarily switched off.
The Unit Display Panel Does Not Light
If the display panel does not light when the unit is switched on then first check that the AC
power supply to the unit is OK. Under exceptional conditions of use the main fuse may blow.
This is normal and is designed to protect the unit. Confirm that the main fuse is intact and if
in doubt try a spare. Spare fuses can be found under the rubber covers in the handle. If the
unit immediately blows the main fuse then there is an internal fault.
The Unit Display Panel Lights But Does Not Come To ‘READY’
If this happens then first confirm that the AC power supply is adequate and within the
prescribed limits. Try switching the unit off, wait a minute, then switch on again.
The Modelling Lamp Does Not Light.
Check the modelling fuse and the modelling lamp itself. Replace as required.
GENERAL
Welcome to the world-wide family of Bowens flash equipment users, and congratulations on
selecting the Esprit Digital 750. This has been designed using the latest technology to
produce a unit that is simple to operate, yet has a powerful, highly controllable and accurate
output. Please familiarise yourself with these instructions before operating the unit.
SAFETY NOTES
•
The Esprit Digital 750 must not be used in an environment where moisture or flammable
vapour is likely to come in contact with the unit.
•
When moving the unit from extremes of temperature and humidity, allow at least one
hour for the unit to stabilise at room temperature before connecting it to the supply.
•
A fire hazard exists if flammable materials are placed in close proximity to either the
flashtube or modelling bulb when the unit is in use.
•
Do not restrict the slots in the case when in use.
•
Care must be exercised when handling equipment that has been in use. The reflector
and front end of the unit can become Very Hot.
•
Switch off and disconnect supply before changing fuse(s), modelling bulb or flashtube.
•
Only fit a modelling lamp of the correct wattage & rated for the local AC Line voltage.
•
The Esprit Digital 750 is protected by a 10A (T) 20mm fuse and a separate 4A (F) 20mm
fuse for the modelling. These are mounted underneath the unit adjacent to the mains
inlet. Never replace either fuse with one of a different rating or type.
•
Only connect the unit to a 3-wire, earthed (grounded), supply with an AC Line voltage
within the ranges 90V to 130V or 190V to 253V with a nominal frequency of either 50Hz
or 60Hz. Unregulated or poorly regulated generators should not be used.
•
Avoid trailing supply cords and sync leads where they can be tripped over.
•
Never use a unit with damaged covers, mouldings, glass dome, flash tube or modelling
bulb. If the unit is dropped or damaged in any way always have it checked out before
using.
•
Due to the high voltage / high energy used in the Esprit Digital 750, all servicing should
only be carried out by an authorised Service Centre.
CONTENTS OF CARTON
•
Esprit Digital 750 with flashtube
•
Sync. cord
•
Instructions
•
Safety Leaflet
Additional items may be supplied for use in specific countries.
