Emerson Process Management ROSEMOUNT 5300 Uživatelský manuál stáhnout pdf (Strana 139)

100

101

Reference Manual

00809-0100-4530, Rev BA

July 2009

7-9

Rosemount 5300 Series

Figure 7-7. After changing the

amplitude threshold the

transmitter detects the interface

Signal Quality Metrics Build up on the probe and different surface conditions are factors that can

affect signal and noise levels. Signal Quality Metrics can give an indication of

how good the surface signal is compared to the noise. See Signal Quality

Metrics page C-18 in Appendix C: Advanced Configuration.

3.0 5.0

The Interface Threshold is adjusted

below the peak to allow the

interface peak to be detected

Amplitude, mV

Distance, m

Interface Threshold

Surface Threshold

Reference Threshold

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