Flash Power Control, Changing the Modeling Lamp

Flash Power Control

The flash-power output level is variable over 5-stops, from full to 1/32 power. The maximum power available depends upon the model (See specification table) and is denoted by the number 6 on the control panel. The power settings are denoted in 1⁄3-stops. The numeric divisions indicate full-stop divisions.

When switched on from either AC or battery supply, the unit will charge. Once the unit has charged to the desired power level, the green flash-ready lamp will illuminate indicating that the unit is ready to fire.

NOTE: If the unit is subjected to rapid operation over extended periods, it may automatically go into an overheat condition. In this condition, the flash-ready lamp will illuminate to indicate the presence of power, while the charging and modeling functions are disabled in order to allow the unit to cool. The unit will automatically resume operation once cooled sufficiently.

In an overheat condition, the unit will typically take 15 minutes to cool down. By switching the unit off and then on again after approximately 5 minutes, the unit can be re-activated in order to get a few extra shots if needed.

Changing the Modeling Lamp

Switch off Travelite and disconnect from the power supply. Screw modeling lamp into ES lampholder in the center of the reflector. Allow lamp to cool before removing.

NOTE: It is recommended that a Photoflood or Halostar bulb with a maximum wattage of 275 watts is used. The manufacturer will not accept liability on the use of any lamp with a greater wattage than 275.

Changing the Fuse

The modeling and flash circuitry is protected by a single 10-amp fuse mounted on the rear panel. Never replace the fuse with one of a different rating. As the fuse may blow when the modeling lamp fails, always check the fuse when replacing the bulb. A spare fuse is supplied in the fuse holder. Always switch the unit and disconnect the Travelite unit from the power supply before changing the bulb or fuse.

Modeling Lamp Controls

With the modeling lamp control switch (see Rear Control Panel, page 4) in the upper position the modeling light is off. With the switch set to center, the modeling light stays on all the time. With the switch set in the lower position, the lamp will go out when the unit is flashed and come back on when the unit comes to ready. This enables the photographer to see from the camera position that all Travelite units in use have fired. The modeling light may set to full power or ratioed to the flash tube setting by using the Full/Proportional switch on the rear control panel. With the switch in the upper position, the lamp is proportional to flash output, while in the lower position, the lamps stay at full output regardless of power setting selected.

Synchronization

There are several ways to trigger your Travelite

Open Flash:

For testing or multiple-flash applications the open-flash button can be used.

Sync Socket:

The standard 1⁄4" socket on the rear panel of the unit may be used for direct connection to a camera set to 'X' synchronization. Two Travelites may be connected together using a 'Y' connector. An Infrared receiver or flash slave may also be plugged into this socket. The socket operates at +5V and is safe for use on digital cameras.

Built-in Photocell:

The Travelite has a built-in switchable photocell enabling the unit to be triggered by the flash from any other flash unit or a small camera mounted flash gun. It is mounted behind the red transparent cover on the top of the unit. The photocell on/off switch is located on the rear control panel.

Changing the Flash Tube

Ensure that the unit is switched off and disconnected from the AC supply and then wait thirty minutes before touching/removing flash tube. Remove the protective cap and unwind the twisted trigger wire from the flash tube support. Gently pull the flash tube assembly out of the unit. To replace the assembly, hold the flash tube as shown and taking care to support both legs of the tube, gently but firmly, push the flash tube into position, and wind the trigger wire around the flash tube support.

Always replace with the correct flash tube assembly:

UV-Coated BW1498 Clear BW1499

Mounting and Removing Reflectors

A range of reflectors is available for your Travelite. To mount, slide the neck of the reflector over the front of the unit. Align the three pegs on the reflector with the three slots in the retaining ring. Press down and turn clockwise to lock.

To remove reflector, pull back reflector-release (page 4), turn the reflector fully anti-clockwise and withdraw.

If an umbrella is to be used, a 6" Umbrella reflector should be mounted and the umbrella fitted through the hole in the mounting bracket on the reflector and locked in position with the knurled screw.

NOTE: Take care when mounting and removing reflectors not to damage the flash-tube assembly. The flash tube is very delicate, avoid unnecessary handling of the glass tube. Always switch the unit off and disconnect from power supply before fitting and changing reflectors.

WARNING HIGH VOLTAGE! DO NOT TOUCH THE FLASH TUBE ASSEMBLY FOR 30 MINUTES AFTER DISCONNECTING FROM SUPPLY.

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