Rockwell Automation Publication 1441-UM001B-EN-P - September 2012 69
Setting Up Measurements Chapter 3
frequency cutoff point decrease ranging time the most. Try to set your maximum
frequency and lines of resolution such that the formula results in the highest value
that would be practical in your application.
See Instrument Configuration Parameters on page 59
for more information
about filters.
Advantage of Software Filters
If there is no corresponding filter in the data collector, or you choose not to use it,
the Emonitor software can apply a digital filter after you unload the data from the
data collector.
gSE Filters
Use a gSE filter to detect bearing and other component defects. The gSE filters
provide a demodulated measurement similar to the ‘envelope’ measurements in
other instruments. You can use gSE filters with magnitude and spectrum
measurement definitions.
These six gSE filters are available in the Dynamix 2500 data collector. If you
select the Envelope filter, the Emonitor software automatically picks the 5 kHz
gSE filter.
These are two other ways you can reduce ranging time:
• Only use filters that are built into the data collector.
• Change the Autoranging in the Instrument Configuration menu to
either Fixed or Aggressive.
Table 16 - gSE Filters
Filter CPM
100 Hz gSE 6000
200 Hz gSE 12000
500 Hz gSE 30000
1000 Hz gSE 60000
2000 Hz gSE 120000
5000 Hz gSE 300000
In Emonitor software, on the Data Collector dialog box, the Enpac
Emulation parameter must be set to Yes.
See Data Collector Advanced Settings Parameters on page 112
for settings descriptions.
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