Error Correction Processing (ECP)

ECP is a process that is triggered when a timing gate is broken. In this process, data is recorded for one second and after this sample period, the data is analysed and the longest break is used as the reference for the break time.

The reason this method is used, is because it is quite common to have situations where the gate is broken before the athlete actually passes the timing gate beam, typically by the athletes hand or feet. 
By using ECP, you can accurately and more consistently record times ensuring that the time is recorded from the body of the athlete.
If ECP is turned off, the timing gates will take the first break at the reference point for the time.