Bowens ESPRIT DIGITAL 750 Operating Instructions Manual page 5

Esprit Digital 750 Operating Instructions
INTERMITTENT Option
The preferred mode for the 'INTERMITTENT' function can be selected from the 'OPTIONS'
sub-menu as follows:
Option Description
Intermittent off. Only available when the LAMP is switched ON (PROP,
In.0
IND or 100%). The Modelling Lamp will extinguish while the unit
recharges and light again when the unit reaches 'READY'. If the unit fails
to flash for any reason then the LAMP will not be extinguished. This is the
default factory setting.
Intermittent on. Available with the LAMP either ON or OFF. When the unit
In.1
reaches 'READY', after being flashed, the Modelling Lamp will intensify to
full brightness and then dim before returning to the previous setting (or to
OFF). The exact effect will depend on the current lamp setting. If the unit
fails to flash for any reason then the LAMP will not follow this sequence.
FAST RECYCLING OPERATION
As with any flash unit the useful life of the tube and the unit as a whole depends on the way it
is used. Avoiding excessive HEAT is the key to long life.
The fast recycling feature of the Esprit Digital 750 allows a rapid sequence of high power
flashes to be obtained. However, this feature should be used sparingly since continuous
rapid flashing can cause overheating and subsequent damage to the flash tube and possibly
the internal electronics.
Rapid sequences of flashes are perfectly acceptable but they should always be followed by a
reasonable cooling period, either without flashing or at a substantially reduced rate.
After continuous rapid flashing a cooling period of at least 5 or 10 minutes should be allowed
with the unit left switched on since it will cool much faster than if switched off. Switching a
hot unit off may also cause the OVERHEAT protection to operate. Dimming or turning the
modelling lamp off will also aid cooling.
Whenever possible, avoid rapid high power flashing when using restrictive reflectors such as
a snoot or grid reflector, particularly if the unit is pointing downwards.
The table below shows the maximum number of flashes permissible at various flash rates
and flash settings before allowing the unit to cool. This cannot cover all combinations but
should be used as a guide to determine the maximum flash rate to meet your requirements.
FLASH SETTING INTERVAL BETWEEN
(ANY POWER) FLASHES
F10 (FULL) 10 seconds or more
F10 (FULL) 5 seconds
F10 (FULL) Less than 1.5 seconds
F8.0 (1/4) 5 seconds or more
F8.0 (1/4) 2.5 seconds
F8.0 (1/4) Less than 1.5 seconds
F5.0 (1/32) 1.5 seconds or more
F5.0 (1/32) Less than 1.5 seconds
MAX NUMBER OF APPROXIMATE
FLASHES OPERATING TIME
Unlimited Continuous
300 30 minutes
50 2 minutes
Unlimited Continuous
900 50 minutes
150 6 minutes
Unlimited Continuous
1500 60 minutes
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Esprit Digital 750 Operating Instructions
MAIN CONTROLS & DISPLAY
Refer to Fig.1. The 'FUNC' button, the 'UP'/'DOWN' buttons and the three-digit display
provide a simple means of setting and displaying the main functions. Other buttons are used
to access individual functions.
Apart from Bracketing, the unit is designed to retain all settings indefinitely. If for any reason
the memorised settings become corrupted then default settings will be used instead.
'FUNC' Button
The 'FUNC' button is the main display control and selects the required function for display or
adjustment. Each press of the button selects the next available function as shown by the
leftmost digit or digits. The remaining digit or digits show the value of the function.
NOTE: Certain functions such as the IR Remote and Modelling have to be switched on
before the 'FUNC' button can access them. When these are first selected the appropriate
display will be automatically selected for checking or adjustment.
If the 'FUNC' or 'UP'/'DOWN' buttons are not pressed within 4 seconds then the controls and
display will automatically return to the default 'FLASH' function. Use the 'FUNC' button to
reselect if required.
Functions likely to require less frequent adjustment are accessible via an 'OPTIONS' sub-
menu. This allows the user to customise certain functions without complicating the main
controls.
Function Selection
Momentarily press the 'FUNC' button to scroll through the available functions as follows:
Display Range X.X Description
5.0 to 10 Display Flash power value. Use 'UP' or 'DOWN' to adjust.
FX.X
5.0 to 10 Display Lamp power value. Use 'UP' or 'DOWN' to adjust.
LX.X
0 to 12 Display IR Remote Channel. Use 'UP' or 'DOWN' to
CXX
select.
Option Selection
Press and hold down the 'FUNC' button for approximately one second until the display
changes to show one of the values below. Release the button. If the SOUNDER is on it will
sound continuously while the 'FUNC' button is held down. Now momentarily press the
'FUNC' button to scroll through the options until the desired one is reached as follows:
Display Range X.X Description
X.X.X 0.0.0 to 9.9.9 Firmware version.
1 to 9 Bracketing value in tenths. Use 'UP' or 'DOWN' to adjust.
Br.X
1 to 9 Display brightness value. Use 'UP' or 'DOWN' to adjust.
di.X
Fd.X 0 or 1 Flash dump ON = 1, OFF = 0. Use 'UP' or 'DOWN' to
select.
0 or 1 Intermittent Lamp ON = 1, OFF = 0. Use 'UP' or 'DOWN'
In.X
to select.
A more detailed explanation of these options is given in the OPTIONS section.
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