Orion ATLAS EQ-G User Manual

INSTRUCTION MANUALIN 279 Rev. C 01/09Providing Exceptional Consumer Optical Products Since 1975Customer Support (800)-676-1343E-mail: support@telescop

10Changing the Guiding SpeedThe dual-axis hand controller provides 4 different guiding speed settings: 2x, 1.75x, 1.5x (default), and 1.25x sider

11Attaching the GoTo Hand ControllerThe Atlas EQ-G GoTo hand controller comes with two cables; one for usage with the Atlas EQ-G mount, while the othe

12Functions of the GoTo Hand ControllerThere are four main categories of control buttons on the GoTo hand controller (Figure 13): 1. Mode

135. The hand controller’s LCD screen will show a safe solar viewing warning message. Press the ESC button to con-tinue. Note: The GoTo hand con

14Three-Star Alignment1. From the alignment screen, select “3-Star Align” using the scroll buttons. Press ENTER to confirm your choice. 2. The han

15Pointing Accuracy Enhancement (PAE)The three-star alignment should provide excellent point-ing accuracy for visual observation. For other appl

16the scroll buttons and choose the catalog of objects you wish to view. Press ENTER to confirm your choice. Use the scroll buttons to choose an indiv

173. You can ENTER the object’s location by its R.A. and Dec. coordinates, or its azimuth and altitude coordinates. Press 1 (RA-Dec) or 2 (AzAlt) to

18 - An available RS-232 COM port on the PC - Computer interface cable (supplied) - DC power supply (7.5V to 15V @ 100mA or greater output wit

199. Technical SpecificationsMount: German equatorialTripod: SteelWeight: 54lbs. Counterweights: Quantity 2, 11 lbs. eachPol

2Figure 1. The Atlas EQ-G mount.Power switchPower indicator light12V DC power jackAuto guider jackRight Ascension setting circleRight Ascension lock

20Atlas EQ-G GoTo Hand Controller Menu Tree

21Note: The following appendices apply to the Atlas EQ-G with GoTo hand controller only.Appendix A: Enhancing the Pointing AccuracyThe Atlas EQ-G p

22piece field of view. Adjustment in Dec. axis using the hand controller may be necessary. 9. Loosen the R.A. lock knob and carefully rotate the tel

23view (Figure 19). This will determine which direction (left or right) moves Polaris closer to the center of the eyepiece field of view. 12.Carefully

24errors. Pressing ESC will immediately stop the recording and exit from the PEC Training function. Note: Guiding actions are recorded even when the P

25Appendix C: RS-232 ConnectionThe Atlas EQ-G mounts equipped with the GoTo hand control-ler are designed to receive commands sent from a computer’s R

26Appendix D: Standard Time Zones of the World

27Orion Telescopes & Binoculars89 Hangar Way, Watsonville, CA 95076Customer Support Help Line (800)‑676‑1343 • Day or EveningOne-Year Limited Warr

3Table of Contents1. Unpacking... 32. Parts List... 33. Assembly ... 34. A

43. Thread the center support shaft up through the tripod head and into the bottom of the equatorial mount until tight. Use the upper knob on the ce

52. Now loosen both counterweight lock knobs and slide the weights along the shaft until they exactly counterbalance the telescope (Figure 4a). Th

6Polar AlignmentFor Northern Hemisphere observers, approximate polar align-ment is achieved by pointing the mount’s right ascension axis at the North

7The polar axis finder scope is now ready to be used. When not in use, replace the plastic protective cover to prevent the polar finder from getting b

8What if you need to aim the telescope directly north, but at an object that is nearer to the horizon than Polaris? You can’t do it with the counterwe

9consult section 6 of this manual and attempt to polar align the mount more accurately.Tracking can be deactivated or activated at any time the Atlas