Endress+Hauser Solimotion FTR20, Operating Instructions Manual

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Solimotion FTR20 Commissioning
Hauser 31
8�3�3 Gain and detection range (Function B and C)
The "Gain" and "Detection range" functions are for fine adjustment after an automatic and/
or manual calibration; for most applications they are not needed. Alternatively, a calibration
even without the process is possible only with these functions.
The functions are particularly helpful in the following cases:
• Calibration for bulk solids with bad reflection properties or low solid flow
• Mapping of movements in the area surrounding the measuring point with no movement of
bulk solids
• Calibration of the Solimotion outside of the process
• Adoption of the calibration parameters with a device replacement at the same measuring
point
Introduction
The Solimotion FTR20 detects the movement of a wide variety of bulk solids. The total
detection range (0 to 100 %  minimum to maximum possible signal strength) is designed to
be correspondingly wide. This way even products with bad reflection properties (small signal
strengths), such as rigid polystyrene foam, can be detected.
Since the signal strengths with most applications do not cover the entire detection range, this
can be adapted with function B "Gain" and function C "Detection range".
D
C
B
A
0 % 100 %
+ -
+ -
0 % 100 %
15 Gain and detection range
A
Configured detection range
B Shift of the detection range within the total detection range
C Specification of the width of the detection range by shifting the lower range
D Total available detection range
If the reflection properties of the bulk solids in the application are very bad, the detection
range (function C) should be decreased and shifted in the direction of smaller signal strengths
using the gain (function B).