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telescope moves off a terrestrial object while observing:
• Verify that the vertical and horizontal locks have been tightened to a „firm feel“ (
6 and 9 Fig. 1).
telescope pauses when changing slew direction:
• This pause is normal.
A terrestrial object appears reversed left-for-right:
• An eyepiece in the standard 90° observing position (
3, Fig. 1
) yields this image orientation. To
view a correctly oriented image, the Erecting Prism is required.
telescope won‘t move
• Axis clamps undone
• Tighten the axis clamps
the image is upside down
• Amici prism not inserted
• Normal in astronomy telescopes; use the Amici prisms for terrestrial observation
motor noises
• Motor noise is normal and not a fault
ETX-70AT specifications
Optical design .................................................................Achromatic Refractor
Clear aperture
ETX-70AT ...............................................................70mm (2.76”)
Focal length ....................................................................350mm
Near focus (approx.)
ETX-70AT ...............................................................17 ft. (5.2m)
Maximum practical visual power
ETX-70AT ..............................................................240X
Optical tube dimensions
(dia. x length) ..........................................................9.3cm x 30.4-37.1cm (3.6” x 12-14.6”)
Eyepieces
Modified Achromatic ...............................................MA 25mm (1.25” O.D.)
Modified Achromatic ...............................................MA 6mm (1.25” O.D.)
Telescope mounting .......................................................Fork type; double tine
Setting circle diameters ..........................................Dec: 3.5”; RA: 7”
Input voltage ...........................................................9-volts DC
Motor Drive System ................................................DC servo motors with encoders, both axes
Slow-Motion Controls .....................................................Electric, 9 speed, both axes
Hemispheres of operation ..............................................North and South, switchable
Bearings:
Altitude ....................................................................Acetal
Azimuth ...................................................................Nylon
Materials
Tube body ...............................................................ABS
Mounting ................................................................High-impact ABS
Objective lens (crown, flint) ....................................BK7, F2
Telescope dimensions ....................................................40.4cm x 18cm x 22cm (15.9” x 7” x 9”)
Telescope net weight: (telescope only, without batteries, eyepieces)
ETX-70AT ................................................................2.7 kg (5.9 lbs.)
Telescope shipping weight
(telescope, accessories, instruction manual and packing)
ETX-70AT ................................................................5.3 kg (11.7 lbs.)
Autostar specifications
Processor
................................................................................
68HC11, 8MHz
Flash Memory ................................................................512KB, reloadable
Keypad ...........................................................................10 key alphanumeric
Display ............................................................................2 line, 16 character LCD
Backlight .........................................................................Red LED
Coil Cord ........................................................................24“
Maintenance 27
Содержание ETX-70AT Junior
Страница 1: ...Instructivo Telescopio Astron mico ETX 70 con AutoStar ES ETX 70AT Junior...
Страница 4: ...4 CARACTERISTICAS DEL TELESCOPIO Figura 1 El Telescopio ETX 70 AT...
Страница 24: ...24 Localizaci n de estrellas Estrella Polar...
Страница 60: ...Star Locator 24 Star Locator Spring Summer Fall Winter Polaris Polaris Polaris Polaris...
Страница 73: ...Mode d emploi Art No 88 48000 FR ETX 70AT Junior Edition...
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Страница 113: ...Fraunhofer Refraktor 70mm RF mit Autostarund Stativ Betriebsanleitung...
Страница 128: ...Niemals mit dem Teleskop in oder in die N he der Sonne blicken ERBLINDUNGSGEFAHR 18 DIE AUTOSTAR MEN S...
Страница 129: ...Niemals mit dem Teleskop in oder in die N he der Sonne blicken ERBLINDUNGSGEFAHR 19 DIE AUTOSTAR MEN S...
Страница 160: ...Manuale d uso IT ETX 70AT...
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Страница 200: ...Manual de Instru es Art no 88 48000 PT ETX 70AT Junior Edition...
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Страница 240: ...Gebruikshandleiding NL ETX 70AT...
Страница 263: ...24 Sterrenwijzer Poolster Poolster Poolster Poolster Sterrenwijzer Lente Zomer Herfst Winter...
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