|
|
B22 Cold Light Head
Adapted to an Omega B66 Enlarger
Installation:
-
Cut rubber strip
into 3 pieces - each 2 inches long.
-
Remove front
panel of your B66 enlarger
-
Apply either
acetone or lighter fluid to coated side of each rubber strip
separately. When tacky, cement one strip to the inside back of your
enlarger. cement each of the remaining two strips either side
between the screw lugs. See figure 1.
-
Place plastic
diffuser element into square recess in the bottom of your enlarger.
-
Insert the B22
unit into the enlarger, so that it rests flush against the diffuser.
This will automatically position the unit properly over the negative
area.
-
Now remove the
bulb in your enlarger and drill a hole in its right side as shown in
figure 2.
-
Screw a female receptacle
into the bulb socket and plug in 2-prong plug. Draw the 3-prong plug
through the hole and connect to the power pack.
-
Now, re-install the B22
unit as described in bullet #4, and replace the front slide cover of
your enlarger.
Operation
-
Turn on switch of your enlarger cord
and leave it on for the duration of any operating period. This
activates the thermostat control which maintains the B22 unit at
optimum operating temperature.
-
Allow the B22 unit to warm up for
approximately 10 minutes before making any exposures.
If B22
head does not operate properly, check the following:
-
Did you plug the
cord out of the back of your enlarger into an outlet? (110 Vac)
-
Did you plug the
cord out of the power pack into an outlet, or timer?
-
Is your timer
plugged in?
-
Is the switch on
your timer in the "on" position?
-
Are all plugs and
connections made properly?
-
Check
instructions again, step by step!
Thermostat
Control
-
This feature is
incorporated in all Aristo units. Thermo control maintains a
continuous ambient warmth around the lamp insuring peak brightness
at each start when operated through a timer or footswitch
Turn on your thermo switch or plug in your thermo cord and allow
your unit to warm up for about 5-10 minutes before making any
exposure.
To help speed up this warm-up period, the lamp
may be turned on at the same time for about 3 minutes, then shut
off. The unit is now ready to operate efficiently.
The thermo control should be left on continuously for the duration
of any day or working session.
Processing
Recommendations:
-
Negatives: Develop negatives 20-30% longer than recommended
for normal. This becomes the "Normal" negative for cold light
printing
-
Paper:
Expose paper so that full development time can be given. This will
produce prints of good contrast and maximum quality, maintaining a
full tonal range from the whitest highlights to the deepest blacks.
-
Maintenance and Care: Clean your unit periodically. With a
damp cloth wipe your lamp, reflector and diffusion plate of dust and
dirt which may accumulate. Keeping the until clean will help
maintain optimum evenness, speed and contrast.
With a minimum of care, your Aristo cold light unit will give you
years of faithful and trouble free service. All units are thoroughly
checked and tested before leaving the factory, and are guaranteed
for 90 days against defects in workmanship and materials.
When ordering replacement lamps, transformers or diffusion elements
for your unit, please specify your unit model number and color of
lamp desired, etc.
Caution:
Instructions are for guidance only.
Aristo/Voltarc will not be responsible for any damage to lamp
or lamp housing for items improperly installed. |
