Manuel d'utilisation / d'entretien du produit XT6 du fabricant Orion
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2 Figure 1. The SkyQuest XT8 IntelliScope Secondar y mirror holder with 4-v ane spider (not visible) Finder scope Finder scope brac ket Eyepiece F ocuser Optical tube T ensioning knob IntelliScope Con.
3 Congratulations on y our purchase of an Orion SkyQuest XT IntelliScope Dobsonian . It is a high-per- f ormance astronomical instr ument designed to provide dazzling vie ws of celestial objects and unprecedented ease of use.
4 1 Azimuth encoder board 1 Encoder connector board 5 Encoder board mounting wood scre ws 1 Brass b ushing 1 Encoder disk 1 Azimuth axis he x-head screw (length 2.
5 the baseplate. Thread an encoder board mounting screw into the predrilled star ter hole with a Phillips screwdriver and tighten until just tight. 6. Place one T eflon bearing pad (G) into each recessed hole on the ground baseplate (A). The bearing pads will be loose in the recessed hole and should remain that wa y .
by adding or remo ving washers . This is impor tant when using the optional IntelliScope Computerized Object Locator , since the optical tube must be e xactly v er tical during the two-star alignment procedure. Installing the Eyepiece Rack The aluminum e yepiece rac k is a standard accessory on SkyQuest IntelliScope Dobsonians.
7 down much too freely . This causes problems when the observ- er tries to accurately center and track an object f or vie wing, especially at higher powers . Also, the telescope becomes v ery sensitive to balance , requiring additional equipment such as counterweight systems or springs to compensate.
8 spring-loaded tensioner on the brack et with your fingers (Figure 12b). Push the finder scope through the brack et until the O-ring seats just inside the front opening of the brack et. Now , release the tensioner and tighten the two blac k nylon screws a couple of turns each to secure the finder scope in place.
9 (left/right) (Figure 14). For altitude motion, the altitude bear- ings on the telescope tube glide on pairs of bearing cylinders made from ultra-high molecular weight (UHMW) poly eth yl- ene. For azim uth motion, the top baseplate mov es on three T eflon bear ing pads embedded in the ground baseplate.
10 Note: The image in both the finder scope and the main telescope will appear upside-down (r otated 180°). This is normal for finder scopes and reflector telescopes (see Figure 16). Now look through the finder scope . Ideally , the object should be within the field of view .
1200 mm = 120x 10 mm The maximum attainab le magnification for a telescope is directly related to how much light its optics can collect. A tele- scope with more light-collecting area, or aper ture, can yield higher magnifications than a smaller-aper ture telescope.
12 rethread the knobs back into the bearings so that you do not lose them. Do not use the navigation knob as a carry handle! It is not designed to suppor t the weight of the telescope tube and could break off or damage the tube. Note: The SkyQuest may be too heavy f or some users to lift and carry as one unit.
13 Preparing the T elescope for Collimation Once you get the hang of collimation, y ou will be able to do it quickly e v en in the dark. F or now , it is best to collimate in daylight, pref erab ly in a brightly lit room and aimed at a white wall. It is recommended that the telescope tube be oriented hor izontally .
14 Adjusting the Primary Mirror The final adjustment is made to the primar y mirror . It will need adjustment if , as in Figure 18d, the secondar y mirror is cen- tered under the f ocuser and the refl.
15 Note About the Collimatable 2" Focuser (XT8, XT10 only) The 2" f ocuser of the SkyQuest XT8 and XT10 can be colli- mated using three pairs of push-pull screws located at the base of the f ocuser (Figure 13). The focuser was collimated at the f actory howev er , and should nev er need to be adjusted.
night vision f or days . So give y ourself at least a little while to get used to the dark before y ou begin obser ving. T o see what you are doing in the darkness, use a red-filtered flashlight rather than a white light. Red light does not spoil your e yes ’ dark adaptation lik e white light does.
17 dark patches, and you ma y be ab le to spot a whitish polar ice cap . T o see surface detail on Mars , you will need a high po wer ey epiece and v er y steady air! D. The Stars Stars will appear as tiny points of light. Ev en powerful tele- scopes cannot magnify stars to appear as anything more than pinpoints.
18 location, the numbers get progressiv ely smaller . When the navigation n umbers reach 0, the telescope will be pointed right at the object! Y ou just look into the eyepiece and enjo y the view! The IntelliScope Computerized Object Locator is a wonderful conv enience f or both the novice and e xperienced observer .
19 8. Specifications SkyQuest XT6 IntelliScope Primar y mirror :150mm diameter , parabolic , center-marked F ocal length: 1200mm F ocal ratio: f/8.0 F ocuser :Rack-and-pinion.
20 One-Y ear Limited W arranty This Orion SkyQuest IntelliScope Dobsonian Reflecting T elescope is warranted against def ects in materials or workmanship for a period of one year from the date of purchase . This warranty is f or the benefit of the original retail purchaser only .
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 XT6 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 XT6 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Orion XT6, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Orion XT6 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Orion XT6, 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 XT6.
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 XT6. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Orion XT6 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.
