Page 69 - Condition Monitor User Manual

Configuring a Monitor

Figure 7-10 Shaft Trigger Configuration
On first entering this screen, the graphs will be blank.
• If a shaft trigger is not available on the asset, then ensure that the ‘Use Shaft Trigger’
box is unchecked; no other configuration is required.
• To use the shaft trigger, ensure that the ‘Use Shaft Trigger’ box is checked and then
proceed as described below.
Note:
Properly configuring the Shaft Trigger requires that the asset be
running, preferably at synchronous speed.

Press the ‘Refresh Data’ button. The application will connect to the Guard and get a
fresh set of shaft trigger data. Once the data is collected, the graphs and the statistical
information will update:
• The red trace at the top of the graph is the signal that the monitor uses to synchronize
the data acquisition. If this signal is not stable, then the shaft trigger threshold should
be adjusted, and a fresh set of shaft trigger data collected.
• The blue trace in the graph is the raw data collected from the shaft trigger.
• The black line on the graph is the trigger threshold.

• Information about the signal stability is displayed in the bottom of the screen.
Adjust the trigger threshold to an appropriate level, and then acquire data again. When
setting the shaft trigger threshold, use the following guidelines:

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