iOptron 7102 User Manual
4
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Return the mount to Zero Position after balancing;
i.e., CW Shaft points to ground, and telescope tip is at
its highest position.
i.e., CW Shaft points to ground, and telescope tip is at
its highest position.
Turn Gear Switch Knob by 90° to LOCK position to re‐
engage the worm to the worm wheel. Retighten the
Tension Adjuster as the last step to lock the gear (see
Notes below).
engage the worm to the worm wheel. Retighten the
Tension Adjuster as the last step to lock the gear (see
Notes below).
Important Notes on Tension Adjusters
The rule of thumb is to fully screw in the Tension
Adjuster and then back out by about 2 turns. The
optimum spot varies with actual conditions, but is
mostly within 1‐3 turns from the fully tightened
position. Ideally, it should be at a position just deep
enough to rid any free movements (plays), while
force on the worm assembly is kept at a minimum.
Please refer to User’s Manual for more details.
Adjuster and then back out by about 2 turns. The
optimum spot varies with actual conditions, but is
mostly within 1‐3 turns from the fully tightened
position. Ideally, it should be at a position just deep
enough to rid any free movements (plays), while
force on the worm assembly is kept at a minimum.
Please refer to User’s Manual for more details.
8.
Connect Cables: Use the straight RJ11 cable to
connect DEC Control Unit to Main Control Unit.
Connect Go2Nova
connect DEC Control Unit to Main Control Unit.
Connect Go2Nova
®
8408 Hand Controller to the HC
port on the main unit. Plug in a 12V DC power supply
to the POWER socket.
to the POWER socket.
9.
Polar Alignment: Remove Polar Scope covers. Look
through polar scope to locate Polaris (or Sigma
Octantis at southern hemisphere). Slightly loosen
Tripod Center Rod Knob. Use Azimuth Adjustment
Knobs to center the pole star in the azimuth direction,
followed by tightening the Center Rod Knob. Slightly
loosen 2 Latitude Locking T‐bolts, use Latitude
through polar scope to locate Polaris (or Sigma
Octantis at southern hemisphere). Slightly loosen
Tripod Center Rod Knob. Use Azimuth Adjustment
Knobs to center the pole star in the azimuth direction,
followed by tightening the Center Rod Knob. Slightly
loosen 2 Latitude Locking T‐bolts, use Latitude
Adjustment Knob to adjust the latitude. Tighten the
2 locking T‐bolts.
2 locking T‐bolts.
Polar Axis Cover
Polar Scope Cover
Polar Axis (R.A. axis)
Azi. Adj. Knob
Lat. Adj. Knob
Lat. Locking T-bolt
Quick Polar Alignment
Fast and accurate polar alignment can be performed
with iOptron’s AccuAligning
Fast and accurate polar alignment can be performed
with iOptron’s AccuAligning
TM
Polar Scope.
(1) Connect Polar Scope LED cable between main
unit’s Reticle plug and LED socket under DEC axle.
Use Hand Controller (“Set Up Controller” => “Set
Polar Scope Light”) to set illumination intensity.
Use Hand Controller (“Set Up Controller” => “Set
Polar Scope Light”) to set illumination intensity.
Polar Scope LED
(2) Use Hand Controller (MENU => “Align” => “Pole
Star Position”) to display the Polaris Position on
the LCD screen, as indicated in the left side of the
figure below. For example, on May 30
the LCD screen, as indicated in the left side of the
figure below. For example, on May 30
th
, 2010,
20:00:00 at Boston, US (lat N42º30’32” and long
W71º08’50”), 300 min behind UT, the Polaris
Position is at 1h26.8m and 41.5m
W71º08’50”), 300 min behind UT, the Polaris
Position is at 1h26.8m and 41.5m
(3) Use Azimuth and Latitude Adj. Knobs to adjust
the mount in both directions and put the Polaris
R.A. balance
DEC balance