PRÜFTECHNIK VIBXPERT II - Comparing the Current Measurement with Historical Data; Reference Data

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VIBXPERT II 05.2012
Comparing the current measurement with historical data/ reference
data
The following requirements must be met to be able to use this feature:
- Historical data for the respective measurement task exist in the
OMNITREND database.
- A data set has been declared as a reference in the OMNITREND
database.
- The data sets were loaded in VIBXPERT with the route.
- The display mode for route results is set to ‘Standard’ (see also
Devicesetupforroute,p.2-15).
To compare the current measurement with the reference data, pro-
ceed as follows:
• Afterthemeasurementiscompleted*,presstheMENUkeyinthe
measurement screen.
• Select‘Reference’andclickon‘Comparewithreference’(seebe-
low).
 Whenoverallvalues arebeingmeasured,avaluetableappears;
for signal measurements, the data are displayed in a waterfall dia-
gram.
 InaTrendingSpectrum,thedisplaydependsonwhichpanelofthe
results screen is activated: the upper panel containing the spec-
trum (-> waterfall) or the lower panel containing the band alarm
overallvalues(->trend)(seep.4-10).
To compare the current measurement with the historical data, pro-
ceed as follows:
• Afterthemeasurementiscompleted*,presstheMENUkeyinthe
measurement screen.
• Select‘Reference’andclickon‘Showhistory’.
 When overall values are measured, a trend appears; for signal
measurements, the data are displayed in a waterfall diagram.
Left:
Calling up reference data
Right:
Compare current data with
reference & historical data
(characteristic values)
R: Reference data exist
* If the measurement is stored automat-
ically, the program subsequently jumps
to the measurement task screen.
Open the current measurement result as
follows:
- Highlight the measurement task icon.
- Press the MENU key, and click on ‘Dis-
play Result’ (see previous page).
Trend