Reference Manual
00809-0100-4026, Rev FA
July 2009
5-11
Rosemount 5400 Series
Amplitude Threshold
Curve
Setting up an ATC makes tracking of the product surface more robust in the
presence of noise and weak disturbing echoes. The ATC is normally used for
filtering out disturbances with an amplitude smaller than the amplitude of the
product surface echo.
The ATC is designed as a number of individually adjustable amplitude
threshold points.
Figure 5-7. Weak disturbing
echoes can be filtered out by
creating an amplitude threshold.
The Amplitude Threshold Curve function is available in the Rosemount Radar
Master (RRM) program.
BASIC CONFIGURATION
USING ROSEMOUNT
RADAR MASTER
The Rosemount Radar Master (RRM) is a user-friendly software tool that
allows configuration of the Rosemount 5400 transmitter. Choose either of the
following methods to configure a Rosemount 5400 transmitter with RRM:
• Guided Setup if you are unfamiliar with the 5400 transmitter (see
page 5-15)
• Setup functions if you are already familiar with the configuration
process or for changes to the current settings (see page 5-20)
System Requirements Hardware
Processor (minimum/recommended): Pentium 200 MHz/1 GHz
Memory (minimum/recommended): 64/128 MB RAM
COM Port: 1 serial COM port or 1 USB port
Graphical Card (minimum/recommended):
screen resolution 800 x 600/1024 x 768.
Hard drive space: 100 MB
Amplitude Threshold Curve
Measurement signal
Amplitude, mV
Distance, m
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