SKF On-line System WVT User Manual page 104

DataController and XML File Editor
Global Configuration (GlobalConfig)
• Select the Bearing Gain 1 or 10. (The default is 1.)
Trace Settings
Valid Sample Rates, Number of Lines and the maximum number of Averages are given
in the table below.
Number of Averages Allowed
Sample 100 Lines
Fmax Rate
(Hz) (Hz)
20 000 51 200 4 Averages
10 000 25 600 4 Averages
5 000 12 800 4 Averages
2 000 5 120 4 Averages
1 000 2 560 4 Averages
500 1 280 4 Averages
200 512 4 Averages
100 256 4 Averages
WARNING: The maximum Sample Rate is 25 600 or 10 kHz because the sensor
develops resonance at approximately 15 kHz.
Time Required for Trace Data to be Available in SKF @ptitude Analyst
The collection of trace waveform data from the SKF Multilog WVT by DataController
takes varying amounts of time, depending on the configured number of trace samples.
It can take a few minutes or a few hours for DataController to collect all the time wave
and spectra measurements for all four channels. The collection of waveform data is
faster for a device using line power versus a battery powered device.
The following table shows the amount of time that it takes the trace data with the
configured number of samples from all four channels of the device to be uploaded to
SKF @ptitude Analyst for line powered versus battery powered SKF Multilog WVT
devices. It also shows the default trace interval in DataController for line powered
versus battery powered SKF Multilog WVT devices in the event that the trace interval
value was less than the required data upload time.
7 - 12
200 Lines
256 512
Samples Samples
4 Averages
4 Averages
4 Averages
4 Averages
4 Averages
4 Averages
4 Averages
2 Averages
 The DataController initially collects the traces according to the
settings in the SpectraDownload and Time+SpectraDownload
fields in the GlobalConfig tab. This can be modified for individual
SKF Multilog WVT units in the SpectrumCollectNvs tab.
400 Lines 800 Lines
1024 2048
Samples Samples
4 Averages 4 Averages
4 Averages 4 Averages
4 Averages 4 Averages
4 Averages 4 Averages
4 Averages 4 Averages
4 Averages 2 Averages
2 Averages 1 Average
1 Average N/A
SKF Multilog On-line System WVT
1600 Lines 3200 Lines
4096 8192
Samples Samples
4 Averages 4 Averages
4 Averages 4 Averages
4 Averages 4 Averages
4 Averages 2 Averages
2 Averages 1 Average
1 Average N/A
N/A N/A
N/A N/A
User Manual