I saw that one Perry.. Nice pick up. I just picked up three more of those for my future set up.
All you need to know about it is
Press: Reset --> the wavysea will slowly rotate clockwise. Once it reaches your desire setpoint.
Press Set 1 --> this will set the starting position and slowly spin counterclockwise. Once it reaches your ending position then
Press Set 2 --> this is your ending position. Then, adjust the numbers to desired speed.
These step need to be followed each time power outage occurs.