F
Rotor balancing
F:11
Set the frequency range for the spectrum to
‘Automatic’. Leonova will calculate the suitable
range from the RPM data up to approx. 5x. If the
machine is running at low speed < 600 RPM, the
frequency range should be set to 500 or 1000
Hz to save time during measuring. Then select
a number of lines to display in the spectrum,
recommended are 400 lines.
With the tachometer and the vibration transducer
connected, press the MEASURE/SAVE (M/S) key.
Note: If preferred, the display of the rotation
direction (clockwise, counterclockwise) can be
changed by pressing the MENU key and then
choose ‘Shift rotation direction’.
Press the F3 function key (‘Spectrum’) (1) to
display the spectrum. To set a cursor (2) on the
spectrum line at 1X (which shows the amount of
unbalance), press F2 (‘Cursor’) > F1 (‘Cursor A’),
then use the LEFT/RIGHT arrow keys to move
the cursor to the desired position.
To display machine fault symptoms, press SHIFT +
F4 (‘Symptom’), then SHIFT + F1 for all symptoms
or SHIFT + F2 for theoretical symptoms only.
In case the 1X line is relatively small, abort
balancing and first check the machine for other
vibration causes (misalignment, loose bolts, etc.).
For all methods, the run without trial weight
supplies the value for V
0
, the initial machine
vibration.
Run without trial weight
1
2
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 ...