Celestron CGEM DX Mount and Tripod Computerized Telescope CGEM DX Mount Manual - Page 17

takes to center an object can be changed. To change the telescopes slewing direction, see Goto Approach under the Scope Setup menu. Utility Features Scrolling through the MENU (9) options will also provide access to several advanced utility functions within the telescope such as; Calibrate Mount, Hibernate as well as many others. Calibrate Mount - In order to optimize the performance and pointing accuracy of the telescope, the mount has built-in calibration routines allowing it to compensate for mechanical variation inherent in every German equatorial mount. Each calibration is completely automatic and in most cases only needs to be performed once. It is highly recommended that you take a few minutes to go through the mount calibration procedures. • R.A. switch - this procedure records the offset error when the right ascension index mark is aligned at start-up. Calibrating the R.A. Index will improve the accuracy of your initial star alignments when aligning the telescope in the future. • GoTo Calibration - Goto Calibration is a useful tool when attaching heavy visual or photographic accessories to the telescope. Goto Calibration calculates the amount of distance and time it takes for the mount to complete its final slow goto when slewing to an object. Changing the balance of the telescope can prolong the time it takes to complete the final slew. Goto Calibration takes into account any slight imbalances and changes the final goto distance to compensate. Home Position - The telescopes "home" position is a userdefinable position that is used to store the telescope when not in use. The home position is useful when storing the telescope in a permanent observatory facility. By default the Home position is the same as the index position used when aligning the mount. To set the Home position for your mount simply use the arrow buttons on the hand control to move the telescope mount to the desired position. Select the Set option and press Enter. Select the Goto option to slew the telescope back to the Home position at any time. Light Control - This feature allows you to turn off both the red key pad light and LCD display for daytime use to conserve power and to help preserve your night vision. Factory Settings - Returns the telecope's hand control to its original factory settings. Parameters such as backlash compensation values, initial date and time, longitude/latitude along with slew and filter limits will be reset. However, stored parameters such as user defined objects will remain saved even when Factory Settings is selected. The hand control will ask you to press the "0" key before returning to the factory default setting. Version - Selecting this option will allow you to see the current version number of the hand control and motor control The first set of numbers indicate the hand control software version. For the motor control, the hand control will display two sets of numbers; the first numbers are for azimuth and the second set are for altitude. Get Axis Position - Displays the relative altitude and azimuth for the current position of the telescope. Goto Axis Position - Allows you to enter a specific altitude and azimuth position and slew to it. Hibernate - Hibernate allows the telescope to be completely powered down and still retain its alignment when turned back on. This not only saves power, but is ideal for those that have their telescopes permanently mounted or leave their telescope in one location for long periods of time. To place your telescope in Hibernate mode: 1. Select Hibernate from the Utility Menu. 2. Move the telescope to a desire position and press ENTER. 3. Power off the telescope. Remember to never move your telescope manually while in Hibernate mode. Once the telescope is powered on again the display will read Wake Up. After pressing Enter you have the option of scrolling through the time/site information to confirm the current setting. Press ENTER to wake up the telescope. Pressing UNDO at the Wake Up screen allows you to explore many of the features of the hand control without waking the telescope up from hibernate mode. To wake up the telescope after UNDO has been pressed, select Hibernate from the Utility menu and press ENTER. Do not use the direction buttons to move the telescope while in hibernate mode. Sun Menu For safety purposes the Sun will not be displayed as a database object unless it is first enabled. The enable the Sun, go to the Sun Menu and press ENTER. The Sun will now be displayed in the Planets catalog as can be used as an alignment object when using the Solar System Alignment method. To remove the Sun from displaying on the hand control, once again select the Sun Menu from the Utilities Menu and press ENTER. Scrolling Menu This menus allows you to change the rate of speed that the text scrolls across the hand control display. • Press the Up (number 6) button to increase the speed of the text. • Press the Down (number 9) button to decrease the speed of the text. Set Mount Position The Set Mount Position menu can be used to maintain your alignment in cases where you wish to disengaged the clutches or similar situation. For instance, you might use this feature if you needed to rebalance the mount after having completed an alignment. To set the mount position simply slew to a bright star in the named star list then select Set Mount Position. The hand control will sync on the star by asking you to center the star in the eyepiece and pressing the Align button. Once synced on the star, you are free to manually move the mount in both axes in order to rebalance. When you are ready to slew the telescope to your next object, just remember to manually return the tube to the same bright star and carefully center it in the eyepiece. Using this tool will invalidate the PEC index. Turn On/Off GPS - If using your telescope with the optional GPS accessory (see Optional Accessories section of the manual), you will need to turn the GPS on the first time you use the accessory. If you want to use the telescope's database to find the coordinates of a celestial object for a future or past dates you would need to turn the GPS off in order to manually enter a time other than the present. Turn On/Off RTC - Allows you to turn off the telescopes internal real time clock. When aligning, the telescope still receives time information from the RTC. If you want to use the 15