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Trendline 3
(see "Cursor tools
") and a difference cursor, with which you can specify a
frequency band.
How to specify a frequency band in the amplitude/phase diagram:
·
Move the base cursor (yellow) to the measuring point to specify the lower cutoff
frequency.
·
Move the difference cursor (green) to the desired measuring point to specify the
upper cutoff frequency.
In the diagram information, you can read the position of the base and difference
cursor and the width of the frequency band and amplitude difference.
Saving the frequency band
1. Select the frequency band in the amplitude/phase diagram and click
.
2. Enter a name for the frequency band and click
OK
.
or:
1. Click on
.
2. Enter the name of the frequency band.
3. Select the start and end frequency and click
OK
.
Deleting a frequency band
1. Click on the frequency band to delete.
2. Click on
.
Copying frequency bands to a balancing configuration
1. Click on
.
2. The
Add frequencies to balancing configuration
window displays the
balancing configurations available in the system configuration. Select the
desired balancing configuration and click
OK
.
3.4.9 Change alarm levels automatically
The Trendline software can automatically adjust the alarm settings for the
individual characteristic values. During this process the software determines the
average of all measured values for the relevant characteristic value and
automatically adjusts the corresponding alarm value according to your
specifications. Alternatively, you can use the values suggested by the software.
CAUTION
Modification of alarm thresholds may have severe effects on the
service life of the monitored components if used improperly. You
should therefore always carefully check whether the intended
settings are suitable for your specific system.
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