Bowens Portable Generator QUAD2400 User Manual

BOWENS  
QUAD  
i m a g i n g p o w e r  
QUAD2400 GENERATOR INSTRUCTIONS BWL-0350/1  
BOWENS INTERNATIONAL LIMITED  
355 Old Road  
Clacton on Sea  
Essex CO15 3RH UK  
Tel:  
Fax:  
+44 (0)1255 422807  
+44 (0)1255 436342  
QUAD2400  
BW-7620  
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QUAD2400  
Introduction  
Dear Valued Customer,  
Thank you for choosing the Bowens QUAD2400 professional flash system.  
Number of Channels  
Accurate, ergonomic, powerful and simple to use, the QUAD2400 power pack was designed by  
working closely with photographers to develop a flash that meets the standards demanded in  
professional studios today.  
Number of Head Sockets  
Symmetric/Asymmetric  
Heads and accessories from the QUAD range can be used with the QUAD2400 power packs. For  
details of all related products, please contact your local distributor, a list of which can be found at  
Master Power Control  
Independent Channel Variators  
In order to obtain the full benefit from your purchase, please take a few moments to familiarise  
yourself with this user manual.  
Stored Energy (Max.)  
Flash Power Control Range  
Thank you.  
Bowens International Ltd.  
Guide Number  
(Full power, 50° Keylite, ISO 100)  
Typical Recycle Time  
(Full Power, 230V, 50Hz)  
Safety Notes  
Flash Colour Temperature  
Flash Duration (t=0.5)  
(One Head, Max. Variator)  
DO NOT:  
QUAD2400  
• Use in an environment where moisture or flammable vapor is likely to come in contact with the  
Power Level Display  
Flash Voltage Stabilization  
Supply Voltage  
pack or the flash heads.  
• Plug or unplug flash heads without first switching power off.  
• Restrict air vents while in use.  
• Use a unit with damaged housing, moldings, flash tube or modelling lamp.  
If the unit is dropped or damaged in any way, always have it checked out before using.  
• Operate the unit without a safe grounded AC supply.  
Flash Ready Indication  
Overload Protection  
Sync Voltage (Max.)  
Photocell  
DO:  
• Switch power off and disconnect from the supply before changing modelling bulb or flash tube.  
• Observe the AC power supply requirements.  
Audio Ready Signal  
Modelling Lamps  
• Ensure that the flash head cable locking rings at the power pack or adapters are fully  
locked before use.  
• Avoid placing cables where they can be tripped over. Protect from heavy, sharp or hot objects,  
which may cause damage and replace damaged cables immediately.  
• Unplug the power pack from the electrical outlet when not in use.  
• Remove the power cord by gripping the plug. NEVER pull the cord.  
• Ensure that any extension cord used has a suitable current rating to prevent overheating.  
NEVER use coiled extension cords.  
Modelling Modes  
Recommended Flash Head  
Dimensions (l x w x h)  
Weight  
• ALWAYS remove the flash head covers before using.  
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QUAD2400  
QUAD2400  
Control Panel Guide  
Warnings Signs and Troubleshooting  
Top Control Panel  
If the unit appears to have developed a problem, first establish that it is a genuine internal problem and  
not a case of normal operation such as overheating. 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 flash head fuse does not eliminate the problem, then it is likely that an internal problem has  
developed. Always return the unit to an authorized service centre if a problem is suspected after these  
checks. UNDER NO CIRCUMSTANCES SHOULD YOU ATTEMPT ANY REPAIR YOURSELF.  
Sync Sockets  
• Overheat Warning  
The power pack is fitted with a thermostatically controlled fan, but under extreme conditions of use the  
power pack may still overheat, even with the fan running. Flashing less frequently and/or using the  
Slow Charge Mode will normally help prevent this from happening.  
Head  
Socket ‘B’  
Head  
Socket ‘A’  
Overheat protection is provided to inhibit charging until the unit has cooled sufficiently to operate  
normally. The Power Level Displays will flash “Overheat” warning while the overheat condition exists.  
NOTE: The overheat condition remains until the power pack reaches a safe operating temperature or  
the unit is turned off and allowed to cool.  
Fast/Slow  
Switch  
(Under Handle)  
• Control Panel Does Not Light Up  
If the Control Panel does not light up when the unit is switched on, first check the AC power-cord  
connections and check to make sure the AC outlet is working. Under exceptional conditions of use or  
component failure, the Internal Fuse may blow. This is designed to protect the unit. Report the problem  
to your local service agent. DO NOT ATTEMPT TO LOCATE AND REPLACE THE INTERNAL FUSE  
YOURSELF.  
Carry Handle  
Channel A  
Power Level  
Display  
Channel B  
Power Level  
Display  
Modelling  
• Control Panel Lights Up But Ready Indicator Does Not Light Up  
If this happens, first confirm that the AC-line voltage is adequate and within the prescribed limits.  
Confirm that the Flash Thermal Reset Button on the Rear Panel is pushed in. Under exceptional  
conditions of use, this may trip. Switch the unit off, wait a minute, push the button in and then switch  
power on again.  
Mode Selector  
Overall Power  
Selector  
Channel A  
Variator  
Channel B  
Variator  
• Modelling Lamps Are Not Working  
If all of the modelling lamps are not working, first check to see if the Modelling Thermal Reset Button  
on the Rear Panel is out. If this is the case, DO NOT RESET IT until you have checked the head(s) for  
blown bulbs and/or fuses.  
• Power Pack Triggers Erratically  
Check to see if the power pack is being triggered by another flash source by turning the photocell off.  
Photocell  
Switch and LED  
Audio Switch  
and LED  
Test Button and  
Ready Indicator  
Photocell  
Window  
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QUAD2400  
QUAD2400  
Getting Started  
Control Panel Guide  
Before first using your power pack or after an extended storage period, it is recommended that the unit be  
checked for basic operation as follows:  
Rear Panel  
1. Remove the packaging and ensure that the unit is switched off.  
2. Set up a flash head. Be sure the protective cap is removed and the modelling lamp is fitted and switched  
on.  
3. Plug the head into the socket of Channel A.  
4. Set the Overall Power Selector to Symmetric/2400 and the Channel A Variator to Full.  
5. Set the Modelling Mode Selector to Intermittent/Proportional.  
Power On/Off Switch  
6. Set Audio Switch to On, Photocell Switch to Off and Fast/Slow Switch to Slow.  
7. Connect the power pack to a 230V AC, 50/60Hz outlet using the power cord.  
AC Inlet 230VAC 50/60Hz 16A  
8. Set the Power On/Off Switch to On. The unit will show “2400” on the Channel A display. The pack will now  
charge to this setting.  
9. Confirm after a few seconds that the Ready Indicator lights up, the Audio Ready Signal beeps and the  
flash head’s Modelling Light is on at Full brightness.  
Modelling Thermal Reset Button  
Flash Thermal Reset Button  
10. Use the Test Button to discharge the set power into the head.  
11. Confirm that the head flashes, the power pack recycles and Ready Indicator lights up.  
12. Repeat steps 8 and 9 with the Overall Power Selector set to Symmetric/1200, Symmetric/600,  
Asymmetric/1200, Asymmetric/600 and Asymmetric/300. Confirm that there is an appropriate change of  
light output with each change of setting. Use a flash meter if possible.  
NOTES:  
13. Reduce the Channel A Variator setting to -3.0 and confirm that the Modelling Light has dimmed.  
14. Confirm that the head flashes, the power pack recycles and Ready Indicator lights up.  
15. Switch the power pack off. Plug the head into channel B.  
1 The QUAD2400 displays the power  
available to each channel in watt-seconds on  
the two red numeric Power Level Displays  
marked Channel A and Channel B.  
16. Set the Overall Power Selector to Asymmetric/1200 and both Channel Variators to Full.  
17. This time both numeric displays will show “1200.” The power pack will now charge to this setting.  
2 Beneath the Channel Power Level Displays  
are the Channel Variators. These control the  
individual power available from the Head  
18. Confirm after a few seconds that the Ready Indicator lights up, the Audio Ready Signal beeps, and the  
flash head’s Modelling Light is on at Full brightness.  
19. Use the Test Button to discharge the set power into the head.  
Sockets A and B in 1/  
stop increments.  
3
20. Confirm that the head flashes, the power pack recycles and the Ready Indicator lights up.  
21. Repeat steps 16 to 19 with the Overall Power Selector set to Asymmetric/600 and Asymmetric/300.  
Confirm that there is an appropriate change of light output with each change of setting.  
Use a flash meter if possible.  
NOTE: The individual Channel Variators and  
Power Level Displays are aligned with the  
associated socket.  
You are now ready to begin using the generator.  
3 The Fast/Slow Switch, Overall Power  
Selector and Modelling Mode Selector are  
common to both channels.  
NOTE: If the unit has been left unused for six months or predominantly used with low power settings,  
it is recommended that the Power Level be increased to Maximum and the unit left switched on for  
at least 30 minutes occasionally to help preserve the life of the capacitors.  
The AC Inlet, On/Off Switch and Thermal Reset  
Buttons are mounted on the rear panel.  
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QUAD2400  
QUAD2400  
Function Overview  
Function Overview  
Test Button and Ready Indicator Light  
Flash Power Control  
The green Test Button is lit whenever the power pack reaches 100% charge and is ready to be  
triggered. This light flashes when the pack is automatically dumping excess energy after a power-level  
adjustment.  
The power pack is divided into two channels, A and B, and each is fitted with one head socket. An LED  
display for each channel indicates the available power in watt/seconds available at the head fitted to that  
channel.  
Press the Test Button to:  
A single Overall Power Selector reduces the pack’s total power by one or two f/stops and individual  
Channel Variator controls reduce each channel’s power by a further three f/stops in 1/3-stop steps. The  
Overall Power Selector has settings for both Asymmetric (A/B) and Symmetric (A+B) modes.  
1. Trigger the power pack for test purposes whenever the Test Button is lit.  
2. Dump excess energy quickly while the Test Button is flashing. This avoids having to wait a few  
seconds for the pack to automatically dump energy.  
The selected power in Asymmetric mode is available independently from each channel whether or not  
any head is fitted in the other channel. The power available is controllable by using the appropriate  
Channel Variator and the associated display.  
Audio Indicator  
An Audio Ready Signal is provided to beep when the generator is 100% recycled. Turn the Audio  
Switch On with the rocker switch. The red LED lights up when the Audio is on.  
The full selected power in Symmetric mode is only available from Channel A, providing that no head is  
fitted in the Channel B socket. The total power available is shown on the Channel A Power Level  
Display and is controllable by means of the Channel A Variator only.  
Photocell  
A Photocell is provided to trigger the power pack from another flash source or IR Trigger. Turn the  
Photocell On with the rocker switch. The red LED lights up when the Photocell is on.  
In general, the Overall Power Selector should be set to the lowest setting and the Channel Variator(s)  
set to the highest, consistent with the flash power and the distribution between heads required. This  
method provides the shortest flash duration for a given power output.  
Fast/Slow Charge  
The power pack has the facility to adjust the charging times. Turn the Fast/Slow Switch to Slow if:  
Whenever the power levels are changed, the pack automatically dumps any excess energy. The Test  
Button will flash while this is occurring. The time for the Ready Indicator to light up can be reduced by  
using the Test Button to flash the pack.  
1. Only a poor quality AC supply is available.  
2. Several power packs are to share the same supply.  
3. Fast recycling is not required.  
Modelling Control  
Using the Slow setting whenever possible will prolong the life of the power supply.  
The Modelling Mode Selector provides a common control for the modelling lamps of all fitted heads.  
Note that most heads are fitted with a modelling lamp On/Off Switch that overrides the control on the  
power pack. As well as Off, the pack provides three modelling modes, each available with Intermittent  
flash indication:  
Triggering System  
1. Off turns all lamps off.  
The power pack may be triggered from the following sources:  
2. Intermittent extinguishes the lamps when the pack is fired and turns them back on again when the  
pack is 100% recycled and Ready Indicator lights up. This provides a visual indication that the pack  
has been successfully triggered and has recycled.  
1. An external sync source plugged into either of the Sync Sockets. This will trigger the power pack if  
the Ready Indicator is lit. The Sync Socket line is nominally +5V and designed for low voltage  
camera operation. These sockets may also be used with radio and IR triggers to provide a  
synchronised trigger.  
3. Continuous turns the Intermittent mode off.  
4. Proportional sets the lamp brightness in proportion to the appropriate Channel Variator setting.  
5. MAX sets all lamps to full brightness.  
2. The Test Button will fire the power pack only if the unit is charged and the Ready Indicator is either lit  
or flashing.  
6. Automatic 100% sets the modelling lamps of the head plugged into the channel with the highest flash  
power setting to 100% and the modelling lamps of the head plugged into the other channel in  
proportion to its variator setting.  
3. When the Photocell is switched on, the power pack will trigger in response to an external flash of  
light, if the Ready Indicator is lit. For best results, be sure that the red Photocell window is clearly  
exposed to the triggering light source.  
HINT:  
The unit can be set to display power in terms of a decimal reading where 10.0 represents full  
power. This display mode can be set by holding down the test button at switch on.  
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