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Operating Instructions
VARI 2 + 5
Caution:
Be sure to form the flash capacitors before first use
of the equipment as well as after every three month
of storage.
To do this, proceed as follows:
1. Switch unit on.
2. Set unit for full power (1/1).
3. Do NOT fire any flashes!!!
4. Leave unit in this condition for one hour.
5. Do NOT turn on the modeling light.
The capacitors are formed after one hour, and the
unit may be used.
1. Basic outfit
Flash unit with plug-in flash tube, halogen modeling
tube with B 15 d base, power cable, sync cable,
protective globe and spare fuse.
2. Accessories
Various interchangeable reflectors, folding reflectors,
honeycomb filters, umbrellas, barn doors, snoot,
Fresnel-lens attachment, stands. (See system dia-
gram on back.)
3. Design
The units have a 5/8in. socket (11) with clamp (17),
which fits all lighting stands with a 5/8in. stud. Stands
without such a stud need an MA-151 adapter. After
loosening lever (10), the unit can be tilted up or down
using handle (2). To lock the unit, turn the adjustable
lever (10) clockwise.
4. Preparing for operation
Insert halogen tube, making sure it is properly seated
(see item 12 of these instructions). Plug the power
cable into socket (8) at the bottom of the unit, and
connect it to a wall outlet. Switch unit on with green
master switch (6); the green LED (5) above master
switch (6) lights up. While the flash is charging, the
LED (16) will glow very weakly. Once LED (16) lights
brightly, the unit is ready to fire.
Functions of LED (16):
WEAK glow:
Unit is charging
OFF:
Discharging (from high to lower
power or after operation of ther-
mal circuit breaker, item 14)
Lights BRIGHTLY, goes out briefly:
Unit ready to fire.
5. Power supply
The units are factory-set for 220 - 240V / 50 - 60Hz.
Before connecting to the power supply, check
whether your rated voltage agrees with the
operating voltage specified on nameplate (18).
6. Switching on the modeling light
After switching the unit on with the green master
switch (6), you may turn on the modeling light using
the yellow switch (7). When the modeling light is on,
the LED above the switch will light green. The
4
brightness of the modeling light varies in proportion
with the flash output selected.
7. Output control
Flash output can be continuously varied from approx.
12.5% to 100% (over a range of four f-stops). Flash
and halogen light have a fixed relationship and are
varied proportionally to each other. When you reduce
the power setting, excessive energy is dissipated
within the unit; LED (16) does NOT light during this
period.
8. 100% modeling light
With the aid of switch (12), the modeling light can be
switched from proportional to 100% output,
regardless of the flash output selected with knob (4).
Halogen 100%: LED above switch (12) lights green.
9. Optical and acoustic firing monitor
The units provide optical and acoustic firing control
that can be activated with switch (13).
Switch (13) depressed/LED above switch (13) lit
green: After firing, the modeling light will go out until
the unit is once more ready to fire. When using several
units it is thus easy to check whether all units have
fired.
Switch (13) in opposite position/LED above switch
(13) OFF: An acoustic signal sounds after firing; the
optical monitor is deactivated.
10. Synchronization
Plug the sync cable into terminal (19) in the base of
the unit and connect it to the camera. Slaves can be
fired via the photocell (3). This also doubles as an
infrared sensor.
11. Changing reflectors
All reflectors have a bayonet mount and can be
locked in the bayonet (24) with slide (1).
Slide set to A = Mount open.
Slide set to B = Mount locked.
Move slide (1) to A, insert the reflector in the mount,
and turn clockwise to lock. To remove the reflector,
proceed in the reverse order. Use umbrellas
exclusively with STUSCH umbrella reflector which
includes the umbrella holder.
12. Changing the flash and halogen tubes
Switch unit off and pull the power plug. Remove
reflector and other accessories.
Lightly press tube (20) inwards and, keeping it
depressed, turn through º revolution counterclock-
wise.
Withdraw halogen tube.
Remove tube and replace with new one, taking care
not to touch the new tube with your fingers. Follow
manufacturer's instructions.
Before changing the flash tube, switch the unit off,
pull the power plug and wait for about one hour to
allow the capacitors to discharge. Then carefully
withdraw flash tube (20) and replace it with a new one.
Make sure that the tube is firmly seated all the way
down in the base, the triggering contact (22)
surrounding the tube on either side.
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