SVBONY Deluxe II Manual De Instrucciones página 3

axis.) Then turn the collimator on by turning the On/Off knob at the top to the On
position. (Alternatively, you could turn the collimator on before inserting it into the
focuser.)
Look down the front of the optical tube. Remember to keep your eyes clear of any
direct reflections of the beam. Notice the red spot on the surface of the primary
mirror itself, this is the laser beam being reflected from the secondary mirror off the
surface of the primary mirror. The red spot should be centered in the collimation tar-
get (ring) on the mirror. If it isn't, adjustments will need to be made to the secondary
mirror's tilt (Figure 4a).
Fingure 4. Adjust the secondary mirror collimation screws until the red laser spot, shown off center
in a), is centered within the collimation target (ring) on the primary mirror(b)
This is done with the secondary mirror collimation screws, usually located on
the central hub of the telescope's spider vane assembly.
Make adjustments to the telescope's secondary mirror col l imation screws until the
reflection of the laser beam is centered in the collimation target on the primary
mirror (Figure 4b).
Adjusting the Tilt of the Primary Mirror
The final collimation step is to adjust the tilt angle of the primary mirror. Orient the
collimator in the focuser so that the viewing screen is facing the rear of the telescope.
While standing at the rear of the telescope (where the primary mirror collimation
screws/knobs are), look over at the bul ls-eye viewing screen of the collimator. You
should see the red laser dot somewhere on the viewing screen.If you don't, then the
collimation is grossly off. In that case, place a piece of paper in front of the open
tube and note the position of the laser dot on the paper. Make adjustments to the
primary mirror collimation screws to move the laser dot closer to the center and
eventually onto the collimator's bulls-eye viewing screen (Figure 5a).
Once the laser dot is on the viewing screen, you can perform the final collimation.
Adjust the primary mirror collimation knobs until the laser dot hits the center hole of
the bulls-eye screen and pretty much disappears, except for some red "spray" arou-
nd the periphery of the hole (Figure 5b). You can make certain the laser dot is pro-
perly aimed into the hole by sl ightly adjusting one of the collimation knobs to bring
the laser dot out of the hole, then return it by turning the collimation screw the other
way.
Collimation of the optical system is now complete! Go out and enjoy the view!
The alignment of the mirrors should not need to be adjusted again unless the teles-
cope is handled roughly.
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If you handle the telescope gently during transport, then only slight adjustments will
need to be made to the mirrors. Use the Deluxe II before each observing session to
check and make adjustmenst to be mirrors as needed.
To preserve battery life, be sure to turn the laser OFF after each use.
Laser dot
a
Fingure 5. Adjust the primary mirror collimation screws so that the red laser spot, shown off center
on the viewing screen in lands directly a), on the center hole of the bull's eye(b). The
laser spot will mostly disappear except for some "spray" around the periphery of the hole
Installing a New Battery
The deluxe II is powered by a single CR2032 3V
lithiumion "button cell" battery. When the laser
beam starts to dim or completely fades, it's time
to replace the battery. To do so, unscrew the kn
urled battery compartment cap at the top of the
collimator. With a knife tip or the end of a paper
clip, lift the edge of the expired battery (Figure 6).
Insert a fresh CR2032 battery with the positive(+)
side up. Then replace the cap. The CR2032 is a
commonly used battery in watches, calculators,
cameras, and other electronic devices, so you'll
be able to find one at most drug stores or online.
Fingure 7. To mark the center of an unmarked primary mirror, a) trace the outl ine of the mirror on
a piece of paper and careful ly cut out the circle, b) fold the circle in half, and c) then in
half again, d) cut the tip off the paper wedge, e) place the template on the mirror surface
and careful ly register its edge, f) stick the ring label to the mirror surface through the
hole in the template. Then remove the paper template.
Laser dot
centered
on hole
b
3V battery
Fingure 6. To remove the 3V button
cell battery, pry the edge up with a
paper cl ip or knife tip as shown.
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