At the very beginning of a sequence, before the measurement begins and while the cell is still off, the potentiostat will determine the OCP. The sequence will begin and continue until it reaches a vs. OC setting. At that point, the instrument will use the saved OCP value that was taken at the beginning of the sequence, not the OCP value that the system is at that point. In order for the system to measure the OCP at that point in the sequence, you must insert a Measure Open Circuit step (in the Sequence Actions list) into the sequence. The software will then turn off the cell and measure the OCP at that moment and then use that value in the next action that contains the vs. OC parameter. The following is an example of a common battery testing experiment that uses the Measure Open Circuit action.
