iOptron GEM28, GEM28EC Quick Start Guide

Quick Start Guide

GEM28™ German Equatorial GoTo Mount
Models: GEM28 (#G28 Series) and GEM28EC (#G28ECA Series)

PACKAGE CONTENTS1

 Telescope mount – with AccuAlignTM dark field illuminated Polar Scope or iPolarTM electronics polar scope
 Hand controller (HC) – Go2Nova® 8409
 Tripod with accessory tray – 1.5-inch (optional LiteRocTM)
 Counterweight – 10.4 lbs X1 (4.7 kg)
 Counterweight shaft
 Counterweight shaft extension
 Controller cables X2
 USB 2.0 cable
 Built-in WiFi
 Mini USB cable (for iPolar) or polar scope LED and cable (for AccuAlign polar scope)
 AC adapter – 100-240V
 Optional/external GPS Module (#8438)
 Optional hard case (standard for EC version)
 Optional external iGuider for autoguiding (#3360)

ONLINE RESOURCES (www.iOptron.com)

 User’s Manual
 Tips for set up and using the products
 Hand controller and mount firmware upgrades (check online for the latest version)

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Packaging may change from time to time without notice.

iOptron Corp. | 6E Gill Street | Woburn, MA 01801 USA | [phone] | Toll Free [phone] | www.iOptron.com

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STOP!!! Carefully read this Guide BEFORE setting up and using the equipment! Worm

Azi. Adj. Screw

Azi. Locking Screw

system damage due to user operation error will not be covered by warranty.

WARNING: Never disengage Gear Switches without holding the mount firmly! Personal injury

and/or equipment damage may happen.

1. Remove mount head from package: The RA axle is

locked by an Allen wrench (blue circle). Make sure it
is inserted all the way in. Check the R.A. and DEC
Gear Switches and make sure they are at the unlock
position before removing it from the box.

2. Set up tripod: The mount has a 102mm base. Thread

the Alignment Peg onto the tripod head, on top of a
tripod leg or between two legs depending on the
latitude. Insert the Accessory Tray through the center
rod and secure the setup by tightening Locking Knob
from underneath.

alignment peg to be fitted in between the 2x Azi
Adjustment Screws. Remove the 2x Azi Locking
Screws from the mount base. Secure the mount head
by tightening the Azi Locking Screws into the M6
holes on the tripod. After tighten the Azi Locking
Screws, store the Allen wrench at the bottom of the
mount altitude support.

Rotate the mount head to normal position.

3. Attach mount head: Before put the mount onto the

tripod, make sure the RA gear switch is at lock
position to prevent mount head free swing by
accident! Retract the 2x Azimuth (Azi) Adjustment

Screws from both sides to leave ample space for the

iOptron Corp. | 6E Gill Street | Woburn, MA 01801 USA | [phone] | Toll Free [phone] | www.iOptron.com

Level the mount by adjusting the tripod legs. Use the
build-in Bubble Level Indicator or an external leveler
for this purpose.

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