Profoto Pro-B2 - Manual (Page 7)

mized sound level and efficient cooling in all situations.
Please note that when changing modelling light, flash tube
or glass cover the lamp cable must be disconnected from
the generator.
The modelling light has a mini-can socket (E11). The flash
tube has two metal pins. When removing a flash tube, pull
it straight out of the sockets. When inserting a new flash
tube, check that the trigger-wire clasps properly around the
flash tube (please see mounting instructions in package).
When mounting the glass cover, check that both locking
springs connect properly into glass cover holes. In case the
head overheats the modelling light automatically switches
off. When the temperature has dropped sufficiently the
modelling light will switch on again. At the back of the head
there is a thread for attaching accessories like handle (std.
with head) or a flex arm (Magic arm) to hold filters etc.
There are glass covers for different colour temperatures
available.
When used on the Pro-B2 it is strongly recommended
to change from a 500W to a 250W lamp for increased
efficiency due to the fact that the B2 delivers max 250W
to the lamp.
Profoto – Heads Pro -B2
The Light Shaping Company 13 Profoto
Pro -B2 Profoto – Heads
Profoto 12 The Light Shaping Company
ProTwin cont.
10.15.32 Flash Tube, uncoated
10.20.07 Modelling Light 500W, 120 V, mini-can socket (E11)
10.07.09 Handle for ProHead, Pro-7b head and ProTwin
10.15.18 Glass Cover, frosted, UV-coated (standard)
10.15.19 Glass Cover, frosted, extra UV-coated, -300°Kelvin
10.15.20 Glass Cover, frosted, uncoated + 300°Kelvin
10.15.21 Glass Cover, clear, UV-coated
10.15.23 Glass Cover, clear, uncoated + 300°Kelvin 10
ProTwin
The ProTwin is used to obtain extremely short flash dura-
tion, very quick recycling or to get up to 4800 Ws out of
one single head. There are two flash tubes in a ProTwin.
As the flash duration is shorter at low power settings,
and as only half of the desired power is used in each tube,
consequently shorter flash duration is obtained. For
example if you need 1200Ws, you fire 600 Ws from each
tube, and your flash duration is shorter than if a standard
ProHead is used. The flash duration at 1200 Ws with a
ProHead is 1/2200 while it is only 1/3200 with a ProTwin.
One or two generators can be used.
If, on the contrary, you require 2400Ws from one head
you connect ProTwin to two Pro-B2/1200 generators.
For the same reason shorter recycling times is obtained
when two generators are used, as the recycling is faster
when the generators in fact only need to recharge half
the energy. Flash duration and recycling for a ProTwin
at a certain power setting - for example 1200 Ws -
compares with a ProHead set at 600 Ws.
The modelling light is turned on and off with the black
switch [1] at the back of the head. The built-in fan is a
thermostatically controlled 2-speed fan ensuring mini
Magic arm
Fits ProHead, Pro-7b head
and ProTwin. Filters and
Barn Doors can be attached.
Handle
Fits ProHead, Pro-7b head and
ProTwin. Makes it easier to
manoeuvre lamp heads when
using soft boxes. (Included with
all ProHeads)