In this example, the signals on channel 1 and channel 2 are both 50 Hz sine waves. They are clearly not in phase, but what is the phase difference?

To find out, use the Cursor menu and the left bezel button to set the cursor function to "V Bars".

Then, use the second bezel button to set the units to "Degrees". The cursor "at" and "delta" readouts near the top right of the display now read in degrees instead of seconds.

Next, you need to calibrate the cursors by defining the time interval that represents 360°. Clear the menu, and position the cursors at the start and end of one cycle of the channel 1 trace.

Once the cursors are marking one complete cycle, bring up the Cursor menu, and press the rightmost bezel button to set the current cursor position to 0° and 360°. Now, the cursors are calibrated to the input signal.

To figure out the phase difference between the two signals, position one cursor at the start of a cycle on the channel 1 trace, and put the other cursor at the start of a cycle on the channel 2 trace. The "delta" value is the phase difference between the two signals. Here, the signal on channel 2 lags that on channel 1 by 36°.