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Press and release button to open the menu.
Repeatedly press the button until >>Rotation<< will be marked.
Press and release button
both rotation speeds will be shown
while the actual rotation speed is marked in brackets.
Press/release button
escape/return to the standard display.
Repeatedly pressing buttons toggles between
300 and 600 rpm (Default) regardless if the unit is in automatic or
manual mode.
Press and release button to confirm the selected rotation speed.
Selecting the Rotation speed