After installation take the boat for a test run to set the Zero Point. Once the LED is flashing, the attitude of the boat, at the moment the SET ZERO buttons are released, is locked in the memory. The ATC Zero Point is now set. Once the Zero Point is set, the ATC system will permanently retain this optimum attitude in it's memory. Should you ever want to reset the Zero Point, just follow the same procedure to replace the stored Zero Point with the new Zero Point.
Every boat has one particular attitude where it runs most efficiently.
This is the attitude you want to enter as your Zero Point. A good way to reveal your boat's optimum running attitude is to conduct a test by running lightly loaded at full speed in flat water. You will know your boat's optimum running attitude by observing the bow in relation to the horizon, reduced bow spray, and diminished wake. LED lights up, indicating the unit is operating. Once activated the ATC continuously analyzes the attitude of your boat, and directs messages to the trim tabs for correction back to the Zero Point.