Orion 9995 manuale d’uso

INSTRUCTION MANUAL IN 280 Rev . B 02/06 Providing Exceptional Consumer Optical Products Since 1975 Customer Support (800)-676-1343 E-mail: support@telescope.com Corporate Offices (831)‑763‑7000 89 Hangar W ay , W atsonville, CA 95076 Orion ® Sirius ™ EQ-G Equatorial Mount #9995[...]

2 Figure 1. The Sir ius EQ-G mount. T ube ring mounting plate Declination loc k le ver (not shown) F ront opening Declination setting circle Counterweight shaft lock lev er Counterweight lock knob Counterweight Counterweight shaft “T oe-sa ver” T ripod center suppor t tray T ripod leg Mounting plate lock knobs Control panel Right ascension lock[...]

3 T able of Contents 1. Unpacking ............................ 3 2. P ar ts List ............................. 3 3. Assembly ............................ 3 4. Attaching a T elescope ................... 4 5. Balancing a T elescope .................. 4 6. Setting Up and Using the Equatorial Mount . . 5 7. The Sirius EQ-G Dual-Axis Hand Controller .. [...]

4 the azim uth adjustment knobs on the equator ial mount in order to fit the mount onto the tripod head. 3. Thread the central suppor t shaft up through the tr ipod head and into the bottom of the equatorial mount until tight. Use the upper knob on the central suppor t shaft to do this. The equatorial mount should now be fir mly con - nected to the[...]

5 hav e either too much or too little counterweight. Remov e counterweight, or add optional counterweights if needed. 3. Retighten the counterweight lock knob. The telescope is now balanced on the right ascension axis. 4. T o balance the telescope on the declination axis, first tight- en the R.A. lock lev er, with the counterweight shaft still in t[...]

6 T o fi nd Polaris in the sky , look nor th and locate the patter n of the Big Dipper (Figure 6). The tw o stars at the end of the “bowl” of the Big Dipper point right to P olar is . Obser v ers in the Southern Hemisphere aren’t so f or tunate to hav e a br ight star so near the south celestial pole (SCP). The star Sigma Octantis lies about [...]

7 Using the P olar Axis Finder Scope The reticle of the polar axis finder scope for the Sirius EQ-G has a tiny star map printed on it that makes precise polar align- ment quic k and easy . T o polar align the mount using the polar axis finder scope, f ollow these instructions: 1. Appro ximately polar-align the mount as outlined in the pro- cedure a[...]

8 it with the counterweights do wn as pictured in Figure 1. Again, you have to ro tat e t he s cop e i n r igh t a sce nsi on s o t hat th e counterweight shaft is positioned horizontally . Then rotate the scope in declination so it points to where y ou want it near the horizon. T o point the telescope directly south, the counterweight shaft should[...]

9 1. Speed buttons 2. Directional buttons 3. Set button The dual-axis hand controller is eq uipped wit h a red LED light in each b utton to ind icate ope ratio n. An indiv idual b utton’ s LED will illuminate when the button is pressed. If a b utton combina - tion is entered, all LEDs will ill uminate to in dicate a succe ssful operation. Speed B[...]

10 In order to set the guiding speed of y our Sirius EQ-G, use the f ollowing button combinations:  •2xsiderealrate:  Hol d t he Fast button, then press the Up directional button.  •1.75xsiderealrate:  Hol d the  Fast button, then press the Left directional button.  •1.5xsiderealrate: ?[...]

11 The smaller modular jack on the hand controller (Figure 10) is used f or RS-232 comm unications between the Sirius EQ-G mount and a computer equipped with astronomy softw are like Starr y Night Pro (see “Linking with a Computer”). The 12V DC power jack on the hand controller allows independent use of the GoT o hand controller for users who w[...]

12 control of the Sirius EQ-G mount at almost an y step in opera- tion. These controls are lock ed out when the mount is slewing to a n ob jec t. The dir ect ion al bu tton s ar e ver y he lpf ul w hen initially aligning the mount, center ing objects in the ey epiece field of view , and manual guiding. The directional b uttons are typically used in[...]

13 hand controller will lose tr ack of the mount’s position, and the alignment procedure will need to be perf or med again. Keep both the R.A. and Dec. loc k lev ers engaged. 3. T ur n on the pow er switch on the mount 4. The initial screen display ed on the hand controller is the version screen. Press ENTER to proceed. 5. The hand controller’ [...]

14 the alignment procedure must be perf or med again. T o do this, turn the mount’ s power s witch off, then on again. T wo-Star Alignment T wo-star alignment requires only two alignment stars but may produce lesser pointing accuracy than the three-star align - ment. The description below will lead you on a step-by-step procedure on how to perf o[...]

15 improv ed. T o improve pointing accuracy in another region of the sky , perf or m the P AE function again, this time choosing a bright star in the new region of interest. No te: I f the m oun t is “ par ke d” bef o re it is p ow er ed of f ( se e “U til it y Functions”), the star alignments and P AE corrections will remain stored in the [...]

16 PEC T raining: See Appendix B for inf or mation LCD/LED T uning: Allows adjustments of the LCD charac - ter contrast, the LCD bac klighting, and the LED backlighting of the pushbuttons . Use the scroll buttons to select which of these you wish to adjust. Use the left and r ight directional but- tons to increase or decrease the value . Setup Func[...]

17 Note: If the recalled User Object is currently belo w the horizon, the controller will displa y “Below Horizon!! T r y another obj. ” and will automatically return to “Recall Object”. Identifying an Unknown Object The GoT o hand controller has the ability to identify celestial objects that are unknown to you. T o identify an object the t[...]

18 base, but the hardware version will not change with inter net updates). Note: If the error message “Can not connect to a SynScan hand control” appears on your computer , check all cable con- nections. Also , tr y closing all other computer programs that might be attempting to use the COM por t. Note: If the error message “Firmware update f[...]

19 Sirius EQ-G GoT o Hand Contr oller Menu T r ee[...]

20 9. Specifications Mount: German equator ial T ripod: Steel W eight: 30 lbs. Counterweight: 11 lbs. P olar axis latitude adjustment: 10° to 65° P olar axis finder scope: Includ ed, ill uminat or built into mount Motor drives: Dual-axis, internally housed Operation: N o r t h e r n o r S o u t h e r n hemisphere P ower requirement: 12V DC , 2A ([...]

21 Note: The follo wing appendices apply to the Sirius EQ-G with GoT o hand controller only . Appendix A: Enhancing the Pointing Accuracy The Sir ius EQ-G produces pointing accuracy adequate for most applications . If higher accuracy is required, “cone error” calibration ma y be necessar y . Cone Error Calibration “Cone error” is found in a[...]

22 8. Without moving the R.A. axis, adjust the azimuth control knobs (Figure 2) to or ient P olar is in the center of the ey e - piece field of view . Adjustment in Dec. axis using the hand controller ma y be necessar y . 9. Loosen the R.A. lock knob and carefully rotate the tele- scope 180° about the R.A. axis (Figure 17a &17b) This should be[...]

23 Figure 19a. Adjust the optical axis offset scre ws this w ay if P olaris moves toward the center of the eyepiece when the tube is pushed as in Figure 18. Figure 19b. Adjust the optical axis offset screws this wa y if Polaris mov es awa y from the center of the ey epiece. Figure 20. Using the optical axis offset screws move P olar is halfwa y to [...]

24 Note: Guiding actions are recorded ev en when the PEC train- ing is stopped midway . The PEC + sidereal tracking will not be accurate until a full cycle of the PEC T raining is perf or med. The Sirius EQ-G will emit a “beep” sound and display “Record completed” when the training time is up. Press any button to e xit from the PEC T rainin[...]

25 Appendix C: RS-232 Connection The Sirius EQ-G mount equipped with the GoT o hand control - ler are designed to rec eive commands sent from a comp uter’ s RS- 232 COM p or t (v ia the co mpute r inter fac e cab le). The han d con trolle r will comm unic ate with th e co mpute r a t 96 00 bits/ sec, no parity , no sto p bi t. All angles are com [...]

26 Appendix D: Standar d Time Zones of the World[...]

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28 Orion T elescopes & Binoculars 89 Hangar W ay , Watsonville, CA 95076 Customer Support Help Line (800)‑676‑1343 • Day or Evening One-Y ear Limited W arranty This Orion Sirius EQ-G Equator ial Mount is w arranted against defects in materials or workmanship f or a period of one year from the date of purchase . This warranty is f or the b[...]