Profoto D4 - Manual (Page 15)

Profoto D4 – Generators D4 D4 Profoto D4 – Generators
Profoto 24 The Light Shaping Company The Light Shaping Company 25 Profoto
Turn off individual heads by holding down the Flash and Modelling Light Button [12] at the
regarding outlet until the Power Display [10] goes off.
PLEASE NOTE! Of course it is NOT possible, to get more than 100% power from
one generator, i.e. 1600Ws at socket A and 900Ws on socket B or 700Ws at all
sockets with a 2400Ws pack. If a chosen energy distribution is technically
impossible, one or more
Power Display (s) [10] will alternate between the chosen
and the possible power level for two seconds to inform the user. It is necessary
to decrease the energy of these socket(s) by using the corresponding
Power
Dial (s) [13] before you can increase the energy at another socket. If you don’t
reduce the energy of the socket(s) with the alternating display, the generator
automatically returns to the former setting.
IMPORTANT! Because of the fact that the D4 works with separate capacitor
banks for best colour and f-stop stability, at some settings about 1/10 f-stop of
the total flash energy may not be available when using two or more heads.
Modelling Light
With four different modelling light modes it is possible to adjust a D4 generator to a users
preferences and get maximum control of the light setting. The maximum proportional
function is ideal to check delicate set-ups even at lowest flash power.
It is possible to activate the modelling light of each lamp head connected separately at the
generator by a short push on the
Flash and Modelling Light Button (s) [12] until it lights up.
CAUTION! Don’t hold down this button accidentally: In this case the Power Display [10]
goes off and the whole socket is completely deactivated. Check if the modelling
light switch at the back of the head is at the “On” position if a head doesn’t react.
The D4 has a soft start function of the modelling light that extends the lifetime of the
halogen lamps. This is why the modelling light starts with a slight delay. To turn off the
modelling light of a single head, push again the
Flash and Modelling Light Button [12] of
the corresponding socket. To turn off the modelling light of all heads used, it is also possible
to push the
Modelling Light Button [19] – the modelling light goes off and the Modelling
Light Indicators [20] and the Flash and Modelling Light Button (s) [12] are dark.
To change the modelling light mode, hold down the Modelling Light Button [19] until the
desired function is indicated:
1. MAX – Maximum modelling light
The modelling light is at full power regardless of the flash output settings.
2. PROP – Proportional modelling light
The modelling light dims or brightens proportionally to the flash output settings.
3. MAX & PROP – Maximum proportional modelling light
The head receiving the most flash power will automatically work at max. modelling
light, subsequent heads will show the output ratio proportional to it.
4. 1/2 PROP – Half power proportional
The modelling light works at half max. power and dims or brightens proportional to
the flash output settings. (This is useful when mixing 1200Ws and 2400Ws generators
on a set; in this case the 1200Ws pack(s) should be used at 1/2 PROP. Or if a D4 with
4x 500W modelling light is used at a weak fuse/petrol- electric generator.)
After 4. the functions return to 1.
Connecting Camera and Flash Meter
The two Sync Sockets [4] allow the camera and flash meter to be connected simultaneously.
The 5 meter sync cord can, without restrictions be lengthened with a sync extension cable.
Generators can be connected by means of the Profoto sync interconnection cord, so called
“hard wiring”.
Recharging
The recharging starts after the On/Standby Button [3] is pushed and the connected heads
are activated with the Flash and Modelling Light On/Off Button (s) [12]. Normal or
fast recharge can be chosen by pushing the Normal/Fast Recycle Switch [21]. If the
Normal/Fast Recycle Switch [21] isn’t lit, the generator will recharge at the slower,
“normal” rate. Choose this alternative (and in total max. 1000W modelling light), when
the generator is connected to a mains supply with weak fuses, or if you are uncertain as to
how well the mains supply is fused. If the
Normal/Fast Recycle Switch [21] is illuminated,
fast recharging is obtained. This is sufficient for dynamic photography like people and
sports. See “Technical Data” (page 33) for details about the power consumption.
Ready/Charging Signals
Five individual modes offer full information about the actual status of a D4 generator.
This gives the photographer immediate feedback at all shooting situations.
To turn off all ready and charging signals, push once the Ready Mode Button [17] – the
Ready Signal Indicators [20] are off and just the Ready Lamp [18] is lit when the generator