Emerson Rosemount 5900 Instruction For Installation, Configuration, And Operation page 38

Section 3: Configuration of Reference Reflector
November 2019
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In the Calibrate Reference Reflector pane, enter the actual position of the Reference
Reflector (RR) in the RR Distance field. The RR Distance value will be used by the level
gauge as a starting point when searching for the Reference Reflector. A position
between 0.5 m and 8.0 m below the Tank Reference Point is allowed depending on the
antenna type that is used. See
Specify the desired Distance Tolerance value. This is the region around the specified
RR Distance within which the level gauge searches for a radar echo when calibrating the
Reference Reflector (see
Click the Calibrate button.
Click Yes. Now the level gauge starts searching for the Reference Reflector. When the
search is finished, the Calibrate window appears showing the distance to the Reference
Reflector and the amplitude of the reflected radar signal.
Verify that the radar echo originates from the Reference Reflector and not from any
other object in the tank. The measured Distance and Amplitude values will be used as
reference values when future Proof Tests are performed.
Section 2: Installation
Figure 3-1 on page 38). The default value is 0.3 m.
Manual Supplement
00809-0200-5900, Rev AC
for more information.
Configuration of Reference Reflector