Manuel d'utilisation / d'entretien du produit 8 EQ du fabricant Orion
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INSTRUCTION MANUAL IN 213 Rev . A 12/02 Providing Exceptional Consumer Optical Products Since 1975 Customer Support (800) 676-1343 E-mail: support@telescope.
2 Figure 1. The Atlas 8 EQ. T ube ring mounting plate T ube ring mounting plate lock knobs (2) Declination setting circle Declination lock le ver Counterweight shaft loc k lev er Counterweight shaft C.
3 T able of Contents 1. Unpacking . . . . . . . . . . . . . . . . . . . . . . . 3 2. P ar ts List . . . . . . . . . . . . . . . . . . . . . . . . 3 3. Assembly . . . . . . . . . . . . . . . . . . . . . . . . 4 4. Balancing the T elescope . . . . . . .
4 3. Assembly Assembly should tak e no more than 30 minutes. Refer to Figure 1 during assembly . Assembling the telescope requires no tools other than the ones provided. 1. Stand the tripod legs upright and spread the legs out as far as they will go .
5 place to keep the hand controller out of the w a y when not in use. Place the “hooks” str ip of n ylon adhesive on the bac k of the hand controller and the “loops” str ip on a tripod leg or on the mount where it will be in a conv eniently reached spot.
6 5. With one hand on the telescope optical tube, loosen the Dec. lock le v er . The telescope should now be ab le to rotate freely about the declination axis.
7 3a). Back the lock ring off by a f ew turns, f or now . Refocus the finder scope on a distant object by threading the objectiv e lens cell in or out of the finderscope body . Precise focusing will be achie ved by f ocusing the finder scope on a bright star .
8 Polar Alignment F or Nor thern Hemisphere obser v ers , appro ximate polar align- ment is achie ved by pointing the mount ’ s r ight ascension axis at the Nor th Star , or P olaris. It lies within 1 ° of the nor th celes- tial pole (NCP), which is an e xtension of the Ear th ’ s rotational axis out into space.
9 quick and easy . T o align the mount using the polar axis finder scope, f ollow these instructions: 1. Approximately polar-align the mount as outlined in the pro- cedure pre viously . 2. Loosen the Dec. lock le ver and rotate the optical tube on the declination axis so that the tube is at a 90 ° to the right ascension axis (Figure 10).
10 hand controller to “ N ” if you liv e in the norther n hemisphere, or “ S ” if you liv e in the souther n hemisphere. When you flip the power s witch, the pow er indicator light on the mount will glow red and the power indicator light on the hand controller will glow green.
Dec. setting circle until the pointer reads e xactly 90 ° .R e - tighten the setting circle thumbscrew . Calibrating the Right Ascension Setting Circle 1. Identify a bright star in the sky near the celestial equator (declination = 0 ° ) and look up its coordinates in a star atlas.
7. Collimating (Aligning The Mirr ors) Collimating is the process of adjusting the mirrors so they are aligned with one another . Y our telescope ’ s optics were aligned at the f actor y , and should not need much adjustment unless the telescope is handled roughly .
13 of the secondar y mirror . This is done by alternately loosening one of the three alignment set screws while tightening the other two , as depicted in Figure 16. The goal is to center the primar y mirror reflection in the secondar y mirror , as in Figure 14d.
14 Star-T esting the T elescope When it is dark, point the telescope at a br ight star and accu- rately center it in the e yepiece ’ s field-of-view . Slowly defocus the image with the f ocusing knob. If the telescope is correctly collimated, the e xpanding disk should be a perfect circle (Figure 19).
15 an hour or more. In the winter , stor ing the telescope outdoors in a shed or garage greatly reduces the amount of time need- ed f or the optics to stabilize. It also is a good idea to k eep the scope cov ered until the Sun sets so the tube does not heat greatly abov e the temperature of the outside air .
16 Important Note: Do not look at the Sun with any optical instrument without a prof essionally made solar filter , or permanent eye dama ge could result.
17 object, the lower its magnitude . Choose an object with a visu- al magnitude of 9 or lower . Many beginners star t with the Messier objects, which represent some of the best and bright- est deep-sky objects, first catalogued about 200 y ears ago by the F rench astronomer Charles Messier .
18 era ’ s shutter is now ready to be opened. A remote shutter release must be used or the image will be b lurred beyond recognition. T r y e xposure times between 1 and 10 seconds, depending upon the brightness of the planet to be pho- tographed and the ISO of the film being used.
19 with hard silicon dio xide, which prev ents the aluminum from o xidizing. These coatings nor mally last through man y y ears of use bef ore requir ing re-coating (which is easily done). T o clean the secondar y mirror , first remov e it from the tele- scope.
20 One-Y ear Limited W arranty This Orion Atlas 8 EQ is warranted against def ects in materials or workmanship for a period of one year from the date of purchase .
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Orion 8 EQ c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Orion 8 EQ - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Orion 8 EQ, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Orion 8 EQ va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Orion 8 EQ, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Orion 8 EQ.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Orion 8 EQ. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Orion 8 EQ ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
