General measurement functions
B:25
B
Zoom
To zoom in on the X axis of the spectrum, press the F1 key (‘Zoom’) (1) > F1 (‘Zoom X’) (2) . This zooms
the display around the center of the current view. To zoom sideways, press SHIFT + F1 (left) or F2 (right).
The displayed frequency range is shown below the diagram (3).
To zoom in on the Y axis, press the F1 key (‘Zoom’) (1) > F2 (‘Zoom Y’) (4). The amplitude scale changes.
You can undo the last zoom step with ‘Zoom back’ or restore the original diagram with ‘Zoom back
all’ (5).
Cursors
By default, cursor A (6) is already in the spectrum when you open it. To display a second cursor, B,
press F2 (‘Cursor’) (7) > F2 (‘Cursor B’). To remove it, press F2 again.
For fine work, move cursor A sideways with the LEFT/RIGHT arrow keys and cursor B with SHIFT +
LEFT/RIGHT (8). One step corresponds to spectrum resolution (minimum distance between two spec-
trum lines).
For each step, the cursor skips to the top of the spectrum line or, if there is none, to the base line
(amplitude = 0). Frequency and amplitude of the cursor position are briefly displayed in the upper
right corner (9).
When the arrow coincides with a position belonging to a symptom, the name of the symptom is dis-
played (9). In case several symptoms share the same position, all relevant symptom names are displayed.
Spectrum functions
Regarding display and available functions, there is no difference between a vibration spectrum and an
SPM spectrum. The spectrum type is recognised from the measurement unit and the amplitude unit.
4
5
2
9
1
3
7
6
∆
∆
8
9
Summary of Contents for leonova emerald
Page 1: ...User guide PORTABLE EFFICIENCY ...
Page 2: ......
Page 6: ...A 2 General instrument functions A ...
Page 36: ...B 2 General measurement functions B ...
Page 74: ...C 2 Measurement techniques always included B C ...
Page 88: ...D D 2 Shock pulse measurement ...
Page 122: ...D D 36 Shock pulse measurement ...
Page 124: ...E E 2 Vibration measurement ...
Page 150: ...E E 28 Vibration measurement ...
Page 152: ...F F 2 Rotor balancing ...
Page 170: ...F F 20 Rotor balancing ...