Instruction/ maintenance manual of the product PRO 120 EQ Orion
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INSTRUCTION MANUAL IN 189 Rev . B 04/05 Providi ng Exce ptional Consum er Opti cal Pro ducts S ince 19 75 Customer Support (800)-676-1343 E-mail: support@telescope.
2 Figure 1. The SkyView Pro 120 EQ. Declination lock lever (opposite side) Right Ascension lock lever (opposite side) Declination slow-motion control knob Safety thumbscrew Mounting plate securing kno.
3 T able of Contents 1. Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3. Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 4. Balancing the T elescope .
1. Stand the tripod legs upright and spread the legs out as far as they will go. Keep the tripod legs at their shortest (fully retracted) length, for now; you can extend them to a more desirable length later , after the scope is fully assembled. 2. Place the base of the equatorial mount onto the tripod head.
the mounting plate and rethread into the tube rings. Note that the side of the mounting plate with the central “groove” will be facing up. Use the small wrench to secure the tube rings to the mounting plate. 10. Loosen the black mounting plate securing knob as well as the metal safety thumbscrew on the top of the equatorial mount.
6 The telescope is now balanced on both axes. When you loos- en the lock lever on one or both axes and manually point the telescope, it should move without resistance and should not drift from where you point it.
achieved by focusing the finder scope on a bright star . Once the image appears sharp, retighten the locking ring behind the objective lens cell. The finder scope’s focus should not need to be adjusted again.
8 knob. But first the R.A. axis of the mount must be aligned with the Earth’ s rotational (polar) axis—a process called polar alignment. Polar Alignment For Northern Hemisphere observers, approximate polar align - ment is achieved by pointing the mount’s right ascension axis at the North Star , or Polaris.
9 directly from your observing site, consult a compass and rotate the tripod so the telescope points north. There is a label bearing a large “N” at the base of the equatorial mount (Figure 8). It should be facing north. The equatorial mount is now polar aligned for casual observ - ing.
2. Loosen the Dec. lock lever and rotate the optical tube on the declination axis so that the tube is at a 90° to the right ascension axis (Figure 10). This is so you can view through the mount with the polar axis finder . T ighten the Dec. lock lever .
ments (there are 60 minutes in 1 hour of right ascension). The lower set of numbers apply to viewing in the Northern Hemisphere, while the numbers above them apply to viewing in the Southern Hemisphere. The Dec. setting circle is scaled in degrees, with each mark representing 2° increments.
12 the scope in declination so it points to where you want it near the horizon. T o point the telescope directly south, the counterweight shaft should again be horizontal. Then you simply rotate the scope on the declination axis until it points in the south direction.
tion outside to cooler air (or vice-versa), a telescope needs time to cool to the outdoor temperature. The bigger the instru - ment and the larger the temperature change, the more time will be needed. Allow at least 30 minutes for your SkyView Pro 120 EQ to equilibrate.
14 Important Note: Do not look at the Sun with any optical instrument without a professionally made solar filter , or permanent eye damage could result.
15 the stars you are centering in the eyepiece. Remember , the finder scope (and main telescope eyepiece, for that matter) gives an inverted image, so you must keep this in mind when starhopping from star to star . 8. Astrophotography Several dif ferent types of astrophotography can be success- fully attempted with the SkyView Pro 120 EQ.
est star within the field of view. Remove the eyepiece and insert the illuminated reticle eyepiece into the diagonal. Turn the eyepiece’s illuminator on (dimly!).
17 es in temperature and humidity . Do not store the telescope outdoors, although storage in a garage or shed is OK. Small components like eyepieces and other accessories should be kept in a protective box or storage case. Keep the dust cover on the front of the telescope when not in use.
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20 One-Y ear Limited W arranty This Orion SkyView Pro 120 EQ is warranted against defects in materials or workmanship for a period of one year from the date of purchase.
An important point after buying a device Orion PRO 120 EQ (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Orion PRO 120 EQ yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Orion PRO 120 EQ - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Orion PRO 120 EQ you will learn all the available features of the product, as well as information on its operation. The information that you get Orion PRO 120 EQ will certainly help you make a decision on the purchase.
If you already are a holder of Orion PRO 120 EQ, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Orion PRO 120 EQ.
However, one of the most important roles played by the user manual is to help in solving problems with Orion PRO 120 EQ. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Orion PRO 120 EQ along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
