SPM leonova emerald, Руководство пользователя

Страница: 106 / 170

D
D:20
Shock pulse measurement
Input data for SPM dBm/dBc
Measuring points for the SPM techniques are normally set up
in Condmaster and then downloaded to Leonova. However,
it is possible to open the Leonova default file in the SPM
window and configurate all measuring parameters. Select
‘dBm/dBc’ and open with ENTER.
Transducer
Before starting measurements, make sure that the shock
pulse transducer you are using with your Leonova is properly
selected.
Default transducers for the shock pulse techniques are set up
via the transducer register. Default transducer is the active
transducer when ‘Portable’ transducer is selected under
‘Measuring point data’. To select a default transducer, see
Chapter A page 15.
You can select other shock pulse transducers from the
transducer register (1) if you switch ‘Transducer’ from
‘Portable’ to ‘Remote’.
When using a DuoTech sensor all fields displays (2) that
normally apply to a vibration transducer. The actual data
for the individual transducer is written on its calibration
card. This data should always be input in the transducer
register. When several transducers are in use, they should
be marked to assurethat the readings are calibrated. Note
that measurements with DuoTech will be performed at
channel VIB-1.
dBi
For a normalized reading of bearing condition with the
Leonova default file, go to
MENU > ‘Measuring point data’
and set the initial value dBi. The default setting is dBi = 0,
which produces the normalized shock values with condition
status display.
If known, the dBi can be input directly via the keyboard.
Mark the ‘dBi’ row (3), then press the F1 key (‘Edit’).
If dBi is not known, input the rotational speed (rpm) and
the shaft diameter, and Leonova will calculate and display
the dBi for you.
There are two alternatives for shaft diameter. ‘Input ISO
bearing number’ (4) opens a window (5) where you set the
last two digits
of the ISO number using the
UP/DOWN
arrow keys on the Leonova keypad.
‘Input diameter’ (6) opens the keyboard. Write the shaft
diameter, then edit RPM and write the rpm on the keyboard.
The dBi will be displayed when the data input is complete (3).
4
2
2
3
1
5
6
1