Celestron 11074-XLT, Instruction Manual

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Factory Setting – Returns the CPC hand control to its original factory setting. Parameters such as backlash compensation values, initial
date and time, longitude/latitude along with slew and filter limits will be reset. 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 software. 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 CPC 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.
Calibrate GoTo
–
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.
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
Periodic Error Correction (PEC) - PEC is designed to improve photographic quality by reducing the amplitude of the worm gear errors
and improving the tracking accuracy of the drive. This feature is for advanced astrophotography and is used when your telescope is
polar aligned with the optional equatorial wedge. For more information on using PEC, see the section on “Celestial Photography”.
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