Dataman 520 Series - Manual (Page 73)

DATAMAN oscilloscope
User’s Guide
Fig. 6.9.3. – Information about harmonic selected by cursor
„Frequency“ – Frequency of harmonic (its index)
„Amplitude“ – Amplitude of harmonic in decibels (in voltage)
„Phase“ – Phase of harmonic in radians (in degrees)
TIP: The effective or peak voltage of the harmonic can be displayed. You can
select it in the main menu.
The main screen controls are located in the bottom right corner of the main window.
Fig. 6.9.4. – Screen controls
Click the „Hold“ button to pause/unpause the data refresh. Click the „Zoom in“ to
display less data on the screen, click „Zoom out“ to display more.
TIP: You can zoom in/out using the mouse wheel: if the mouse cursor is over the
amplitude part of the screen, rotation of the wheel away from you zooms in,
towards you zooms out. The position of the harmonic below the mouse cursor
remains intact after zoom (if possible).
6.9.1. Main menu
The main menu is located in the top of the window. The following items are available:
File | Print – Opens the print manager
Settings | Data source | Channel A – Sets channel A as data source
Settings | Data source | Channel B – Sets channel B as data source
Settings | Period selection | Automatic – Activates automatic period selection
WARNING: Automatic period selection can fail to find the period of some
signals. If you are not sure whether the detected period is correct, select the
period using the cursors and activate one of the manual modes.
Settings | Period selection | Manual with fine shift – The period selected by the
cursors is automatically adjusted to match the period. The period is adjusted
maximally by +-2 points of the scope screen.
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