SPM leonova emerald, User Manual

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B:36
General measurement functions
B
To zoom in on a time range, press the F1 key (‘Zoom’)
(1) > F1 (‘Zoom X’). This zooms the display around the
center of the current view. To zoom sideways while in
zoom mode, press SHIFT + F1 (zoom left) or F2 (zoom
right).
To zoom in on a part of the amplitude scale, press
the F1 key (‘Zoom’) (1) > F2 (‘Zoom Y’). The amplitude
scale changes.
To put a cursor (2) into the spectrum, press F2 (‘Cur-
sor’) (3). With cursor A inserted, you can add a second
cursor, B (4).
The frequency for the period between the cursors (5)
is shown in Hertz, together with delta values (6):
• Delta time = time between the two cursors
• Delta amplitude = difference in amplitude
between the two cursors.
• Delta phase = difference in phase angle
between the two cursors.
Note : Phase angle is shown only if rpm is measured.
When two cursors are in place, you can activate periods
by pressing F3 (‘Periods’) (7). This creates multiples
with the same distance as that between cursors A and
B (8). This feature is a useful aid for identifying fault
symptoms.
While in cursor mode, the cursors can be moved side-
ways; move cursor A with the LEFT/RIGHT arrow keys
and cursor B with SHIFT + LEFT/RIGHT. For each step,
the time and amplitude of the spot beneath the marker
are briefly displayed.
To mark a different period, use MENU > ‘Clear all’ and
start again.
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