Orion SIRIUS 9995 User Manual download pdf (Page 24)

Note: Guiding actions are recorded even when the PEC train-

ing is stopped midway. The PEC + sidereal tracking will not be

accurate until a full cycle of the PEC Training is performed.

The Sirius EQ-G will emit a “beep” sound and display “Record

completed” when the training time is up. Press any button to

exit from the PEC Training upon completion.

Play Back the PEC Record

PEC tracking can be activated under the Setup menu or by

pressing the Setup button when needed. In the Setup menu,

choose “Set Tracking”, then “PEC + Sidereal”. The Sirius EQ-

G will play back the corrections you made during the PEC

training cycle and start tracking with periodic error compen-

sated for.

Note: The Sirius EQ-G will continue to track in the PEC +

sidereal mode until another tracking mode is selected. If the

power is turned off while the Sirius EQ-G is in the PEC + side-

real mode, the hand controller loses synchronization with the

R.A. worm gear and the PEC training will have to be repeated

when the power is turned back on. To avoid this, be sure to

return the telescope to its home position by selecting “Park

Scope” in the Utility Functions menu before turning off the

power.

Figure 21. Drifting caused by periodic error.

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Orion SIRIUS 9995 User Manual Page 24