Operation - Bresser BRT-150B Instruction Manual

2. Recharge time: 0.5 to 2.5 sec.; flash duration from 1/1000
to 1/2000 sec.
3. Flash power settings from 1/1 to 1/16 (stepless); color tem-
perature: 5600 K (+/- 100 K)
4. 75W halogen modeling lamp
5. Easy to use with operating knobs and controllers
6. Bowens compatible bayonet; light modifiers interchangeab-
le easily with one hand
Overview operating and lighting unit
(Fig. 2+3)
A: On/Off selector switch
B: On/Off knob for the acoustic signal with function indicator
C: Fuse
D: Highly sensitive photocell
E: Adjustment knob for the flash power setting
F: On/Off knob for the photocell
G: (Flash)Test knob with function indicator
H: 3.5mm jack for the sync cord or a receiver of a wireless
remote control
I: C13 connection for the power cord
J: Halogen lamp 75W
K: Flash tube
Preparation and maintenance
DANGER!
Discharge the flash before exchanging the flash tube or the
fuse. Disconnect the device from the power supply (remove
plug)! Let it cool down for about 45 min. before starting any
maintenance work.
NOTE!
Use clean cotton gloves or a clean cloth.
1. Changing the fuse (Fig. 4)
1. Carefully open the fuse department with a screwdriver as
shown on the picture and pull out the holder out of the slot
(Fig. 2, D). The spare fuse is place in the tube over the fuse
that is actually used.
2. Insert the new fuse into the holder and put it back into the
slot.
2. Changing the flash tube or the modeling lamp
RISK of ELECTRIC SHOCK!
The glass body of a lamp may burst at the end of its lifetime. In
this case, disconnect the device from the power supply imme-
diately (remove plug). Even after unplugging the power cable
there is a risk of electric shock due to the existence of residual
electricity!
Wait at least about 45 min. until replacing an defective bulb.
Touch the device or its parts with suitable protection gloves
only.
RISK of BODILY INJURY!!
If neccessary, remove parts of broken glass carefully with suitab-
le protection gloves. There is a risk of bodily injury!
2.1. Changing the flash tube (Fig. 5)
1. The flash tube is inserted and additionally secured with a re-
taining wire (Fig. 5, L). Work evenly, slowly and with a steady
hand when replacing the flash tube.
2. Loosen retaining wire before removing the flash tube with
pliers or tweezers. Hold the flash tube only at the two insulated
8
sockets and pull it out gently.
3. Insert the new flash tube in the same way and fasten the re-
taining wire again.
2.2. Changing the modeling lamp (Fig. 6)
NOTE!
Only use modeling lamps with a maximum power of 100W. The
use of modeling lamps with a power higher than 100W will cau-
se its quality and the lifetime of the device. An overheating of
the device can cause.
1. The Halogen lamp of the modeling light is simply inserted.
Work evenly, slowly, and with a steady hand when replacing
the Halogen lamp. If neccessary, remove parts of broken
glass carefully. There is a risk of bodily injury!
2. Touch the halogen lamp with clean cotton gloves or a clean
cloth only and remove it carefully.
3. Insert the new lamp in the same way.
3. Installing a softbox (Fig. 7)
1. Let the flash cool down.
2. Push and hold back the clamping lever (Fig. 7, M) on the
mounting ring.
3. Put the softbox with the lateral pins in the notches of the
mounting ring and slide the clamping lever forward again.
4. Attaching a reflective umbrella (Fig. 8)
1. Open the reflective umbrella and slide the mounting rod th-
rough the hole in the bracket.
2. Tighten the locking screw (Fig. 8, N) on the bracket.
Startup procedure/Turning on the device
1. Insert the C13 coupling of the power cord into the C13 so-
cket (Fig. 2, I) of the housing.
2. Insert the Euro-plug of the power cord into the wall socket
(110V or 220V max. voltage).
3. Turn on the device with the On/Off selector switch (Fig. 2, B).
Please note:
There are two different ways to turn on the device with the
selector switch. Moving the switch from position ‚O' to position
‚I' will turn on the flash only. Moving the switch to position ‚II'
will turn on the flash and the modeling lamp together. (also see
chapter „Turn on/off the modeling lamp")

Operation

1. Setting the flash power
Move the adjustment knob (Fig. 2, E) to the position for the
desired value of the flash energy (1/16 to 1/1 stepless). When
the capacitor is charged according to the selected flash energy
the function indicator above the Test knob lights up and a short
signal sounds. The device is now ready for use.
After changing the flash energy from a higher to a lower value
push the (Flash)Test knob (Fig. 2, G) to trigger a flash manually.
Through this the capacitor will be discharged to the new lower
energy. Flashing during the discharging procedure is not pos-
sible. After the capacitor was charged regarding to the selected
flash energy the function indicator above the Test knob lights
up and a short signal sounds. Then the device is ready for use.
2. Turn on/off the modeling lamp
1. Move the On/Off selector switch (Fig. 2, A) to position ‚II' to
turn on the modeling lamp and the flash.
2. Move the On/Off selector switch (Fig. 2, A) back to position
‚O' to turn off the device.