SPM leonova emerald, User Manual

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Measurement techniques always included
C:5
C
RPM measurement with default file
Optical speed measurement
Easiest is the optical speed measurement. The preparations are simple: paste a bit of adhesive
reflecting tape on the rotating part. It has to be reasonably clean.
Direct the laser beam at the reflecting tape and press the M/S key. When measuring on short
distance the reflections from the shaft can register false readings. Then try to angle the laser beam
towards the reflection tape to achieve a stable result. A blue LED on the Tachometer and Tempera-
ture probe shows that the light beam is reflected back to its sensor. A green dot (4) on the display
indicates signal from the probe sensor. Red measuring values indicates values out of range. When
the count stabilizes, press F1 to continue or save the measurement with the M/S key.
To see or delete measurement(s) before saving, press F1 to see the result window. Press SHIFT+F2
to set a default comment or link a voice recording to the result. See Chapter B, Comments.
To save the result, press MENU and select ‘Save as’. Select ‘Save a file’ and input a name via the
keyboard window. Press ENTER to save.
4
1
2
3
Please note: to evaluate bearing condition and to make
sense of a vibration spectrum, one has to know the rpm
of the shaft. This type of RPM measurement is made
as part of the shock pulse or vibration measurement,
where the RPM technique is automatically included
when the point is configured for ‘variable speed’.
The RPM measure with the default file (1) is not avail-
able for other measurements. Press ENTER to open
RPM measurement.
Settings (2) are made under ‘Measuring point data’
(SHIFT+F3). It is possible to change RPM and speed
range via the keyboard window. Values outside the
range will not be registered. To edit, mark a line in
the list with the UP/DOWN arrow keys and open with
ENTER.
‘Number of pulses’ are set to correspond to the
number of reflecting tape bits. Leonova will always
count the number of pulses (1 rpm for each received
light reflex/pulse). The maximum is 150 000 pulses per
minute. On slowly rotating parts you can use several
reflexes at even intervals.
It is possible to convert RPM to other unit. Specify
‘Unit of speed’ to desired unit and activate ‘Use factor’.
Input the conversion factor via the keyboard.
When using a factor or gear ratios, the measured RPM
from the tachometer is shown in the lower right corner
and the converted RPM value in the middle of the
display
‘Factor’ is also used with contact measurement to
convert RPM to peripheral speed.
‘Max. fluctuation’ is used only for variable speed.
When measuring with the Tachometer and Temperature
probe TTP10, select ‘Portable’ (3) as transducer.