Évaluations - 5, GPA: 4.4
(
)
)
|
Facilité d'utilisation
If the cord is too short to reach the telescope’s location, optional extension cords are available from your Meade dealer in 25 foot lengths. Do not plug the AC Adapter into the end of a standard extension cord to extend the observing range of the telescope. To use the AC Adapter, plug it into a standard indoor AC outlet. F.ug the end of the cord into the power input socket (#9, Fig. 1). Check that the Northern/Southern (N-S) switch (#4, Fig. 1) is set for the hemisphere of the observing location and then turn the "On/Off” switch (#3, Fig. 1) to 'On". (Remember: The N-S switch must be correctly set before the telescope is turned on.) The power indicator light (#2, Fig. 1) should now be lit and the telescope tracking. If the Power Light is not working, see 'Troubleshooting the LX6 Drive System", page 18. 2. DC Operation The 8" and 10" LX6 telescopes operate on DC current and may be powered directly from a 12 volt battery or power cell. The LX6 drive system normally draws about .5 amp in standard operation with the Electronic Command Center (ECC) in use. Maximum current usage is .8 amp when all optional accessories are being used. If the telescope is being powered from a fully charged car battery in good condition, the current drain is negligible and the telescope may be used all night without fear of a "dead battery". The LX6 Schmidt-Cassegrains are supplied with a DC power cable for use with a car battery. To use the DC power cable, connect the cable to the power socket (#9, Fig.1) on the power panel of the LX6, and the cigarette plug to your cigarette lighter. Be sure that the N-S switch is correctly set and that the On/Off switch is "On". If the power indicator is not lit, see "Troubleshooting the LXS Drive System", page 18. 3. Battery Pack Also supplied with the telescope is a small Battery Pack with cord. This Battery Pack holds 10 size AA batteries and is intended for short observing sessions. Rechargeable batteries are recommended. Note: When the telescope is being powered by the Battery Pack without the ECC, the power usage is about .35 amp or 30% less than normally, required by the telescope when used with the ECC (.5 amp). E. 9 X 60 Polar Viewfinder In addition to being an excellent 9 X 60 viewfinder, the Meade illuminated Reticle Polar Viewfinder is designed to be used as an optical guide for finding the celestial pote. 1. The Illuminated Reticle To assure safe arrival, the Polar Viewfinder is shipped with the bulb/battery holder, not mounted on the viewfinder. To attach, thread the bulb/battery holder into the hote located just under the eyepiece of the viewfinder. To turn on the reticle, rotate the knurled switch on the bulb/battery holder to the “on" position. The brightness is adjustable by rotating the knurled switch. To prolong battery life, remember to turn off the reticle when not in use. To replace the batteries in the Polar Viewfinder, remove the bulb oattery holder from the Polar Viewfinder. Separate the two halves of the bulb/battery holder by unthreading the two pieces, exposing the batteries. After replacing the batteries, thread the two halves of the bulb/battery ho'der together, and replace the unit onto the Polar Viewfinder. 2. Focusing the Viewfinder The Meade Polar Viewfinder has been pre-focused at the factory. However, not everyone has perfect vision and slight adjustment is sometimes necessary to obtain maximum performance. -11 - 1. Rotate the eyepiece until the reticle is in sharp focus. 2. Loosen the black knurled locking ring (just behind the dew shield). 3. While looking at a star, rotate the dew shield until the star is in focus. (This refocuses the objective lens.) CAUTION! Take care when rotating counter clockwise. You are unthreading the dew shield and it may fall off if rotated too far! Refocusing the objective lens will only require a few turns of the dew shield at most. 4. When the dew shield is rotated to the sharpest focus for your eye, tighten the black knurled locking ring against the dew shield to fix the position. 3. Finding the Celestial Pole To accurately position the telescope on the celestial pole, follow this procedure: 1. Align the Polar Viewfinder with the main optical tube (as described in the Model 2080/2120 Instruction Manual) by-adjusting the black thumbscrews on the bracket until an object in the main telescope is centered on the cross hairs of the Polar Viewfinder. 2. Rotate the optical tube in declination until the declination circle reads 90 degrees. (In this position, the optical tube will be pointing toward Polaris.) 3. Rotate the telescope in R.A. until one of the cross hairs is vertical to the horizon (this is not necessarily vertical to your eye), and the viewfinder’s eyepiece is also vertical to the horizon. By making sure the viewfinder’s eyepiece is also vertical, your are automatically picking the correct cross hair to make vertical to the horizon. 4. Hold the Polaris Reference Circle next to the telescope...
Ce manuel est également adapté pour les modèles :Instruments d'optique - 2080/LX6 (780.7 kb)