Bowens ESPRIT 750 DIGITAL PRO Manual

Esprit Digital 750 (BW-7500 & BW-7505) Instructions BWL-0309/1

BOWENS INTERNATIONAL LIMITED

355 Old Road

Clacton-on-Sea Essex CO15 3RH

Tel: [phone]

Fax: [phone]

Esprit

DIGITAL 750

(100V/ 117V/ 230V 50/60Hz)

OPERATING INSTRUCTIONS

Covers Models

BW-7500 BW-7505

Esprit Digital 750 Operating Instructions

IR Remote		Function	Remote
Receiver		Display
Control &			Trigger Cell
Window			Control &
			Window
	REMOTE	CELL
	POWER	LAMP
	750	100%	Lamp
	500	IND
Power			Function
Control	250	PROP	Control
		FUNC

AUTO BRACKET

TEST

SOUND INT

-B +B

Bracketing Controls		Audible & Visual
	Function Display
Test Button &		Indications Controls
‘READY’ Indicator	Controls

Fig.1 Control Panel

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Esprit Digital 750 Operating Instructions

Esprit Digital 750 Specification

Nominal Stored Energy		Selectable 750Ws, 500Ws or 250Ws
Supply Voltage AC		Auto-ranging 90-130 VAC or 190-
		253 VAC with a nominal frequency
		of either 50Hz or 60Hz +/-5Hz
Typical Charge Times (Full Power)	230V 50Hz	<1 sec.
	120V 60Hz	<1.5 secs.
	100V 60Hz	<2.0 secs.
Stabilisation		+/- 0.05 f-stop within each range
Modelling Lamp 230V		Max 650W
Modelling Lamp 120V		Max 300W
Ready Indication		Green ‘READY’ light at 100%
		charge.
		Audible and Modelling light
		indication as selected by the user.
Main Fuse (Spare under handle insert)		10A (T)
Modelling Fuse (Spare under handle insert)		4A (F)
Nominal Sync. Voltage		14V
Photocell		On/Off
Sounder		On/Off
Modelling Power Control		Off/Proportional/Independent/100%
IR Remote Control		Full control, 12 available channels
		(Number depends on transmitter)
Guide Number – Full Power 50° Keylite, 100		102m, 335ft
ISO
Flash Duration t=0.5	250W-s	1/3250
(Variator set to F10)	500W-s	1/2240
	750W-s	1/1700
Flash Colour Temperature		Approx. 5300K UV coated cover
		glass as standard
Flash Variator Power Control		6 f-stops - 5 f-stop range in 1/10
		increments, Min (1/32) to Max (1/1)
Recommended Modelling Lamp For 120V		300W 120V CP96
Recommended Modelling Lamp For 230/240V
	Preferred	300W 240V CP97
	Optional	650W 240V P2/16	BW-2503
Flash Tube Assembly		Clear	BW-2980
Cover Dome		UV Coated	BW-2981
Dimensions: Length, dome to handle		425mm,
Width		150mm,
Height, excluding bracket		135mm,
Weight		4.5 Kg, 9lb 14oz

Due to our policy of constant product improvement Bowens International reserve the right to change equipment specifications without notice.

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Esprit Digital 750 Operating Instructions

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.

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Esprit Digital 750 Operating Instructions

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.

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