When the SINGLE START key is Pressed While the Measurement is in Progress, Why Does the Measurement Stop Without Recording any Data?

The SINGLE START key is active only when the measurement is stopped and not in progress. Pressing the SINGLE START key or the START/STOP key will stop measurements in progress. This applies to all DL Series models that have the SINGLE START key or the START/STOP key.

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Oscilloscopes are a common type of test instrument used to capture, analyze, and troubleshoot electrical or real world physical signals. Oscilloscopes observe the change of electrical signals over time, continuously graphed on a display as voltage or amplitude vs. time.