The generator automatically turns off when the controls POWER [15,16], MOD.LIGHT[11]
and the sync outlets have not been in use for 30 minutes.
Photocell
The built-in photocell [5] will sense flash release as well as IR-signals from most IR-trans-
mitters. The photocell is disabled when the button marked SLAVE [7] is released. The photo-
cell can also, via cable, trigger off an additional generator.
Signals, Audible & Visible
One of the indicator lights for the battery charge [3] will light up once the generator is
turned on. The charge indicator [3] is up-dated when the generator is turned on or when
a flash is fired. When all lights light up the generator has no charging value - fire a flash.
When the energy output is changed the white ready lamp [8] and the modelling lamp turns
off thus indicating that dumping or charging of the energy is in progress. A short ”beep”
can be heard when the generator is fully recharged. Releasing the button SOUND [9] can
turn off this signal. The generator can be restarted directly from a camera, if a sync cord
is connected, by shooting a frame. If a flash is fired before the generator is fully charged
a long ”beep” can be heard thus indicating an underexposed frame. A number of short
consecutive ”beeps” can be heard before the generator automatically turns itself off.
Instructions
Pro-B2
The Light Shaping Company 25 Profoto
Continuous
Set the MOD.LIGHT [13] control to continuous. The modelling lamp will automatically dim
down while recharging or when the energy output is changed. In this position the battery is
drained in 20 – 60 minutes depending on the lamp used (100 or 250 W) and the number of
flashes triggered.
Connecting Camera & Flash Meter
The two sync sockets [6] allow the camera and flash meter to be connected simultaneously.
The 5 m sync cord can be extended without limitations with sync extension cords. Further
sync connections can be made with the Profoto sync interconnection cable or by so called
”hard wiring”. Aslave signal from the photocell can be forwarded through this cable to
another flash generator.
Recharging
The recharging starts when the ON/OFF switch [12] is pushed down. Slow or fast recharging
can be chosen. When the button FAST[10] is released, the generator will recharge slowly.
Push the FAST button [10] for normal fast recharging cycles; The recharging time is approx.
1.8 sec at full energy. When extremely short recharging times are required, for instance
when operating a motor-drive camera, choose lower energy settings. The lowest energy
setting offers the fastest recharging rate (0.04 sec or 25 flashes/sec.). The generator is
turned off by pressing down the button ON [12] for a minimum of three seconds.
Pro-B2
Instructions
Profoto 24 The Light Shaping Company
[13]
[6]
[16]
[10]
[9]
[12]
[5] [7][3]
[8]
