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The SLEW setting might not appear as one of the choices. This depends on the SLEW SPEED sub-menu (under SETUP)
being set ON or OFF. To make the SLEW option available within the SPEED menu, set SLEW SPEED to ON.
WARNING: It is advisable to leave SLEW SPEED set to OFF. The telescope slews quickly and could possibly hit
you in the eye if you forget that you have the setting at the slew rate.
Another way to move the telescope at the SLEW rate is to set SPEED to FINDER. If you press the diamond button that
corresponds to the direction you want the telescope to slew, then simultaneously press the opposite diamond button, the
telescope will move at the SLEW rate. This same procedure works with PHOTO and 2XSDRL speeds; the telescope will
jump up to CENTER speed when the buttons are pressed simultaneously.
DRIVE BASE
Figure 4-3: The Drive base cover of the Ultima 2000
Here are the functions of the different drive base controls and interfaces.
LABEL PURPOSE
FOCUS This jack is for the optional focus motor, #94143. To use the focus motor, hold
down the MENU button then press the UP or the DOWN button while still holding
down the MENU button. The UP button turns the focus knob counter-clockwise.
AUX This jack is for a CCD Auto Guider.
HC Hand controller plug-in jack.
ON/OFF On/Off power switch.
EER Enhanced Encoder Resolution. When the light is blinking about once a second, the
standard resolution is operational. When the light blinks about twice a second, then
one of the axes is in enhanced resolution. When the light stays on, then both of the
axes are in enhanced encoder resolution. The way to activate EER on any one of
the axes is to run the motor at CENTER speed in one direction for a few seconds
until the light blinking changes. When centering on an alignment star, it is best to
move the telescope with the tracking motors (at center speed) until the star is
centered. This should activate the EER and give you a better alignment.
12V Used to run off of an external source like a car battery or a wall transformer - AC
Adapter (12V 500mA center tip positive).
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