iOptron CEM60 Instruction Manual

Align the Polar Scope to RA axis
Connect the power and hand controller, turn the mount
on. Rotate the mount head to the left side. Center the
polar scope crosshairs onto a point object. Rotate the
mount head 180 degree in R.A. If the polar scope
crosshairs does not stay in the same place, the Polar
Scope is not aligned well to the mount RA axis. To adjust
it:
1. Remove the bubble level from the polar scope by
releasing two bubble level set screws.
2. Remove the Polar Scope illumination LED
3. There are three Reticle Adjustment Screws on the
side of the Polar scope, as shown in the following
photo.
Instruction of CEM60 Polar Scope Adjustment
May 16, 2014
Objective Lens
Reticle Adj. Screws
(1) Bring the object half the distance to the center by
adjusting the reticle adjustment screws. Loose one
screw first, then tighten the other screw(s). Only
loose/tighten one screw at a time and very small
amount of turn each time to avoid the reticle totally lost
its position. It may take a few minutes to familiarize
yourself with the screws that move the polar scope in
the appropriate direction. PLEASE do not over tighten
the setting screws. (2) Rotate the mount 180 degree to
bring the mount back to the left side. If you are lucky
enough, the object will stay in center of the polar scope.
Otherwise, repeat Step 1 to further move the object to
the center. After few times, the object will stay in
center when the mount is flipped from right to left.
Center the object Center the object
Rotate Rotate
Rotate Rotate
Lock Ring
Bring the object Bring the object
half the distance half the distance
to the center to the center