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NPZ TAL-200K Service Manual

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TELESCOPE TAL-50K
TELESCOPE TAL-200K
Service manual


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Summary of Contents for NPZ TAL-200K

  • Page 1 TELESCOPE TAL-50K TELESCOPE TAL-200K Service manual...

  • Page 2: Table Of Contents

    CONTENTS Page . General directions 2. Specifications 3. Standard equipment 4. Design and principle 5. Optical train 6. Telescope assembling 7. Order of operation 7.. Operation with telescope 7.2. Photographic observations 7.3. Telescope and atmospheric conditions 8. Maintenance 9. Rules of storage 0.

  • Page 3: General Directions

    . GENERAL DIRECTIONS ATTENTION! Telescope TAL-150K, TAL-200K (hereinafter in the text referred to as «tele- scope») is not intended for direct visual observation of Sun at full operating aperture. Because of high light intensity an image of Sun in focus of primary mirror has a high temperature.

  • Page 4: Specifications

    2. SPECIFICATIONS Name TAЛ-50K TAЛ-200K Diameter of objective lens (operating aperture), mm Focal length, mm 500 2000 Relative aperture :0 :0 Magnification and angle field of view (changeable): - with the eyepiece f’=25 mm 30′ " - with the eyepiece f’=0 mm 6′...

  • Page 5: Standard Equipment

    3. STANDARD EQUIPMENT Name Telescope Supply unit Eyepiece of f’=25mm Finderscope Accessories and Parts Eyepiece of f’=0 mm Barlow lens Reticle Blind Bushing Adapter Stopper Housing Service manual...
  • Page 6 Fig.. General view:  – telescope tube; 2 – finderscope; 3 – eyepiece...
  • Page 7 11 10 Fig. 2. Assemble of primary mirror together with eyepiece set:  – mirror; 2 – bushing; 3 – blending tube; 4 – screws; 5 – ball hinge; 6 – focusing mechanism; 7 – diagonal mirror; 8 – eyepiece; 9 –...
  • Page 8 Fig. 3. Corrector:  - mounting; 2 - reflecting lens; 3 - meniscus lens; 4 - padding ring...

  • Page 9: Design And Principle

    4. DESIGN AND PRINCIPLE The tube 1 (fig.) is the basic part of the telescope, which embodies the optical units such as a primary mirror, corrector, eyepiece set and finderscope. The primary mirror 1 (fig. 2) is fastened with the collet bushing 2 in the center hole.
  • Page 10 Fig. 4. Optical train of telescope:  - primary mirror; 2 - eyepiece; 3 - diagonal mirror; 4 - reflecting lens; 5 -meniscus lens; 6 - viewfinder The lacks of aspherical surfaces, high quality of correction of the residual aberration in the wide range of spectrum and small length are indisputable ad- vantages of Klevzov’s optical system, that to allow satisfying all requirements of amateur astronomer.

  • Page 11: Telescope Assembling

    6. TELESCOPE ASSEMBLING Prior to assembling the units and parts should be cleaned from the sluicing compound of the plant. The telescope is assembled in the following way. The finderscope is mounted on the tube in two rings and fixed with six set screws available on the rings.

  • Page 12: Order Of Operation 2

    7. ORDER OF OPERATION 7.. Operation with telescope The magnification of the telescope is large and consequently its field of view is low. Therefore the telescope is provided with the viewfinder. The optical axes of telescope and viewfinder must be aligned. Set the reticule 8 (fig.5) into the eyepiece 25 mm and then mount them into the focuser.

  • Page 14: Telescope And Atmospheric Conditions

    axis is set incorrectly, even in the case when the star image is kept on the cross- hairs, the images of the stars at the edges of the field of view appear as dashes. 7.3. Telescope and atmospheric conditions Telescope has a high magnification. In this case one should remember the following feature.

  • Page 15: Maintenance

    8. MAINTENANCE For faultless operation the telescope should be kept in cleanness and protected against mechanical damage. The metal surfaces are periodically cleaned by using clean soft napkins, then wiped with a napkin impregnated with acidless vaseline, after that with a dry napkin. The aluminized mirrors require particular care.

  • Page 16: Rules Of Storage 6

    9. RULES OF STORAGE It is recommended practice to store the telescope in the heated room with the relative humidity of maximum 80% at the temperature from 5° C to 40° C. It is recommended to avoid any strokes and shakes. It is forbidden to store any acid, alkali and materials educing moisture or chemical active gas and streams.
  • Page 17 SUPPLEMENT Table of close stellar pairs for testing image quality of the telescope Coordinates Visible Name Magnitude, ang. distance, Constellations of star degrees, h, m ang. s. ang. min. αPsc 59.4 3’ 4.3-5.3 .9’’ Pisces ° γCet 40.7 02’ 3.4-4.4 2.8’’...

This manual is also suitable for:

Tal-150k

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