Measurements and analysis with the VAS 5051
Display of active measure mode
Measuring range amplitude channel A
Test Instruments DSO
Measuring mode mask is activated
Measuring range amplitude channel B
Selection of types of measuring mode
The button "Measuring mode" can be used to set the following methods of data measurement:
A trigger event is present if the entered input sig- nal has been triggered, i.e. a time and phase reference has been produced.
A signal is only displayed on the screen in meas- uring mode "Normal" if a trigger signal is present and the trigger level is correctly set to the input signal.
If an unknown signal is present, the measure mode "Auto setup" presents advantages. In auto setup mode, the amplitudes of channels A and B, the scanning frequency, and the trigger threshold are set automatically. A change is then made automatically to the mode "Auto level", and the measurement contin- ued independent of the signal amplitude.
Measuring is carried out automatically and free- running if the measure mode "Auto" is selected. The signal is displayed either following a valid trigger event or following expiry of the wait time determined by the scanning frequency.
A measurement is only carried out once in meas- uring mode "Single" following a valid trigger event. A new single recording is carried out each time the button is pressed.
The measure mode "Draw mode" should be set for signals which only change slowly, e. g. lambda probe or temperature sender. Recording of the measured value is untriggered, the curve is displayed continuously from left to right.