Meade LT SC Series Manuel d'utilisateur télécharger pdf (Page 41)

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MANTENIMIENTO

The LT Series is a precision optical instrument

designed to yield a lifetime of rewarding

viewing.

Given the care and respect due any precision

instrument, the LT Series will rarely, if ever,

require factory servicing. Maintenance

guidelines include:

1. Avoid cleaning the telescope’s optics: a

little dust on the front surface of the

telescope’s correcting lens causes virtually

no degradation of image quality and should

not be considered reason to clean the lens.

2. When absolutely necessary, dust on the

front lens should be removed with gentle

strokes of a camel hair brush or blown off

with an ear syringe (available at any

pharmacy). DO NOT use a commercial

photographic lens cleaner.

3. Organic materials (e.g., fi ngerprints) on the

front lens may be removed with a solution

of 3 parts distilled water to 1 part isopropyl

alcohol. You may also add 1 drop of

biodegradable dishwashing soap per pint of

solution. Use soft,white facial tissues and

make short, gentle strokes. Change tissues

often.

4. CAUTION: Do not use scented or lotioned

tissues that can damage the optics.

5. Do not, for any reason, remove the

correcting plate from its machined

housing for cleaning or other purposes.

You will almost certainly not be able to

replace the corrector in its proper

rotational orientation and serious

degradation of optical performance will

result. Meade Instruments assumes no

liability for damage incurred to the

telescope in this way.

6. If the LT Series is used outdoors on a

humid night, water condensation on the

telescope surfaces will probably result.

While such condensation does not normally

cause any damage to the telescope, it is

recommended that the entire telescope be

wiped down with a dry cloth before the

telescope is packed away. Do not,

however, wipe any of the optical surfaces.

Rather, simply allow the telescope to sit for

some time in the warm indoor air, so that

the wet optical surfaces can dry

unattended.

7. If the LT Series is not to be used for an

extended period, perhaps for one month or

more, it is advisable to remove the batteries

from the telescope. Batteries left in the

telescope for prolonged periods may leak,

causing damage to the telescope’s

electronic circuitry.

8. Do not leave the LT Series inside a sealed

car on a warm summer day; excessive

ambient temperatures can damage the

telescope’s internal lubrication and

electronic circuitry.

Collimación

La colimación óptica (alineación) de cualquier

telescopio astronómico que se utiliza para

trabajos serios es muy importante, pero en el

caso de los diseños Schmidt-Cassegrain de la

serie LT, tal colimación es absolutamente

esencial para un buen desempeño. Asegúrese

de leer y comprender bien esta sección para

que su telescopio LT le dé el mejor desempeño

óptico posible.

Como parte de las pruebas ópticas finales,

todos los telescopios LT de Meade son

colimados con precisión en la fábrica antes de

su despacho. De cualquier manera, vibraciones

y manejo en el envío pueden causar que el

sistema óptico se desalinee. Esto no es un

problema ya que el procedimiento de

colimación es sencillo y fácil de realizar.

Para revisar la colimación de su telescopio

serie LT, centre una estrella brillante sobre

usted, o utilice un reflejo del sol sobre una

defensa cromada de un vehículo – observe con

el ocular de 26mm . Permita que la temperatura

de su telescopio de normalice con la del

ambiente antes de proceder; las diferencias en

temperatura de la óptica y el medio pueden

causar distorsión de las imágenes.

Con la estrella o reflejo centrado, desenfoque la

imagen.

Notará que la imagen desenfocada se ve como

un anillo de luz que rodea a un círculo oscuro;

el círculo oscuro central es realmente la sombra

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Meade LT SC Series Manuel d'utilisateur Page 41

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