Functionality

8a-Pro Air1200

24008a –Air

-Pro 8

Power supply

The Pro-8a generator can be connected to 100–120 VAC or 200–240 VAC, 50–60 Hz.The power supply fuse must not be smaller than specified in the technical data.The generator automatically senses and adapts to the voltage and frequency supplied.

Warning

Never use ordinary household extension cords to elongate the power cable.They may overheat.Always unwind cord reel extension winders fully before use. Contact your Profoto dealer for proper equipment.

Due to the two stage SMPS (Switch Mode Power Supply) technology, the Pro-8a could make a hearable sound during the recharge cycle. This is fully normal and could be seen as the sign of power being charged into the generator.

Energy control

The selected energy levels for channel A and B are shown in Flash Light Energy Display A [6] and B [17].

The f-stop scale reading is default. To show energy in Ws scale, push and hold the Ws Switch [1].

In f-stop scale, the maximal energy (100%) is shown as 10.0. In Ws scale, the maximal energy (100%) is 2400 for Pro-8a 2400 Air and 1200 for Pro-8a 1200 Air.

The maximal energy for channel A is 10.0 (100%) and the maximal energy for channel B 9.0 (50%).The maximal energy in total for the two channels is 100%.

Flash Light Energy Control A [8] and Control B [19] are used to adjust the energy levels for channel A and B respectively:

•Turn the control clockwise to increase the energy in 1/10 f-stop increments and counter- clockwise to decrease.

•Press and hold down the control (a “beep” will sound) and turn the control clockwise to increase the energy in 1 f-stop increments and counter-clockwise to decrease.

Modeling light

The Modeling Light Switch [9] is used to turn on/off the modeling light for channel A and B simultaneously. When the modeling light is on, the Modeling Light Switch knob [9] is illuminated.

The Modeling Light Control [7] is used to select one of four modeling light alternatives:

•PROP: The modeling light intensity for each lamp head is automatically adjusted to correspond in proportion in-between the generators set energy and maximal energy.

•½ PROP:The modeling light intensity is adjusted automatically in proportion as for PROP when the energy level is changed, but with half modeling light intensity of the designated energy. Half proportional modeling light is used when generators of different sizes are used together; Pro-8a 1200 Air shall be set to ½ PROP and Pro-8a 2400 Air to PROP.

•MAX:The modeling lamp gets the maximal intensity, regardless of the flash light energy settings.

•MAX PROP:Maximal proportional modeling light is used when maximal light is needed on one channel (the one with highest energy level).The highest set channel will get maximal intensity and the other will correspond proportionally. Therefore the modeling light may change on a channel which is not adjusted.

If Pro Studio2 is used to control the generators,a Smart Prop function is available.It is similar to the MAX PROP setting, but the intensity proportions match all lamps and generators.

Sync signaling

The Pro-8a generator can be synchronized with the camera in different ways; via cable, via Photocell / IR-slave or via the Profoto Air radio system (LPA radio system available on special order). Both systems can not be integrated in the same generator.

•The two Sync Connectors [2] allow the camera and a flash meter to be connected simultaneously.The 5 meter sync cable can without restrictions be elongated with a sync extension cable. The bidirectional optical isolated Profoto sync interconnection cable is recommended to be used to prevent ground reference interference when connecting sync cables between different generators.

•The Photocell/IR-slave [3] sense signals from most IR sync transmitters as well as from other flash light as a Slave and synchronize the unit.

•The Profoto Air remote radio control system is integrated in all Pro-8a generators, meaning that the generators are prepared to be synchronized or controlled either via Air Remote,Air Sync or via the Profoto Studio 2 computer program and Air USB.

The Sync Control [5] is used to control the sync signaling:

•RADIO:The generator is set to sync via radio.

•SET: Enables setting of radio channel and group.

•OFF:The generator is set to sync via cable.

•SLAVE:The generator is set to sync via photocell / IR.

Ready signaling

Ready signaling is used to indicate when the generator is 100% fully charged.The Ready Control [16] is used to select one of four ready signaling alternatives:

8a-Pro Air1200

24008a –Air

-Pro 9

Profoto Pro-8a 1200 Air, Pro-8a 2400 Air manual Functionality

Models: Pro-8a 1200 Air Pro-8a 2400 Air

Functionality