Profoto Pro-7b - Manual (Page 18)

18
Batter y
– Profoto B2
Nomenclature:
1: Main power on/off
2: Model light timer
3: Fast/slow recycling
4: Sound on/off
5: Slave on/off
6: Dual sync sockets
7: Photo/IR-cell
8: Charge inlet
9: Indicator for battery charge
10: Head connection
11: SYM/ASYM Switch
12: Energy control 1/2 f-stop
13: Energy control 1/10 f-stop
14: Radio channels
15: Model Light Cont /Timer
High-voltage power controlled by
sophisticated electronics
Profoto Pro-B2
Technical data:
Energy: 1200 Ws
Energy control: Over an eight f-stop range (down to 9 Ws).
In 1/10 or 1/2 step adjustments
Energy distribution: Symmetric or Asymmetric (2:1 ratio)
F-stop @ 2 m: w/ Magnum 90.3
Recycling: 0.04-1.8 sec.
Flash duration: 1/2200-1/7400 sec.
Flash capacity: Up to 200 full power flashes per charge
Modeling Light: Up to 250 W continuous or time
controlled (max 60 sec.)
Battery: Non spillable lead/acid battery in a battery
cassette for rapid exchange
Charging time: 5 hours (standard Profoto Charger 2A),
2.5 hours (Universal Power Adapter)
Auto dumping: Yes
N° of lamp outlets: 2
Sync contact: 2
Energy precision: 1/100 f-stop flash to flash
Sync Voltage: Compliant to ISO 10330 Standard
Size: 26 x 17 x 23 cm including handle (10 x 6.75 x 9 inches)
Weight: 11,5 kg including battery (25 pounds)
Others: Indicator for battery status, for 1/1, 3/4, 1/2
and 1/4 power; built in photocell w/ on/off switch
Optional built in Radio with 32 channel / 4 zone for
remote operation
Building a modern flash generator raises a lot of challenges.
To start with, generators contain two separate techno-
logical systems: There are microprocessors and inte-
grated circuits for control, external interfaces and display.
And there are also powerful high-voltage components
that generates the actual flash.
Not only do the two system have to coincide in the same
limited space, they must also cooperate perfectly,
without disturbing each other. If not, the 1/10 step
adjustments and the Profoto 1/100 f-stop accuracy
would not be possible.
Finally, these two systems must interface a third one:
the professional photographer. That means reducing all
the complicated technology to a simple and rugged set
of knobs, buttons and outlets.
In conclusion, all Profoto generators:
– produce highest quality light, with extreme accuracy,
without being complicated to use.
– are built using durable and finger-friendly materials.
– have a carefully designed layout, in order to make
your everyday work as easy as possible.
– feature maximum security safety when it comes to
high-voltage components and plugs.
– give you visual, audible, as well as tactile feedback -
seeing, hearing, feeling.