Troubleshooting guide

173
Reference Manual
00809-0100-4308, Rev BA
Appendix D: Configuration Parameters
December 2014
Configuration Parameters
D.3.4 Alert Setup
Signal Quality Alert
Signal Quality is the product surface echo amplitude compared to the surface threshold and
noise. The Signal Quality spans from 0 to 10. A low value means that there is a risk for the noise
peak to be mistaken for the product surface peak.
Build up on the probe and different surface conditions are factors that can result in a low Signal
Quality value. By setting an alert, the Signal Quality value can be used to schedule maintenance
to clean the probe.
Note
The Signal Quality depends on probe type and application conditions, as well as the condition of
the probe. Even if the probe is clean, Signal Quality may not be a 10.
Suitable alert limits vary from application to application. Appropriate value can be determined
by logging Signal Quality over time and viewing maximum/minimum values. The Signal Quality
Alert limit should be at least 1, but a better guideline is 2-3.
Figure D-3. Signal Quality Alert
Enable Signal Quality Alert If the Signal Quality Alert will be enabled or not.
Limit When the Signal Quality value drops below the Limit, the alert
is triggered.
Deadband An area of the Signal Quality range where no action occurs to
prevent alert from activating/deactivating too quickly.
Alert ON
TIME
SIGNAL QUALITY
Deadband
Limit