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Appendix A: Technical reference
A.2 Echo processing
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC
237
Auto False Echo Suppression Range (2.5.10.2.)
Auto False Echo Suppression Range specifies the range within which the learned TVT is
applied. Default TVT is applied over the remainder of the range.
The learned TVT screens out the false echoes caused by obstructions. The default TVT allows
the material echo to rise above it.
Auto False Echo Suppression Range must be set to a distance shorter than the distance to the
material level when the environment was learned, to avoid the material echo being screened out.
Example before Auto False Echo Suppression
①
default TVT
⑤
high calibration point = 0
②
false echo
⑥
obstruction at 1.3. m
③
material echo
⑦
material level at 3.2 m
④
sensor reference point
Содержание Sitrans LR250
Страница 1: ...Operating Instructions SITRANS LR250 PROFIBUS PA 08 2014 Edition Radar Transmitters ...
Страница 42: ...Installing mounting 4 5 Disassembly SITRANS LR250 PROFIBUS PA 40 Operating Instructions 08 2014 A5E32221386 AC ...
Страница 108: ...Remote operation 7 2 Operating via FDT SITRANS LR250 PROFIBUS PA 106 Operating Instructions 08 2014 A5E32221386 AC ...
Страница 166: ...Parameter reference SITRANS LR250 PROFIBUS PA 164 Operating Instructions 08 2014 A5E32221386 AC ...
Страница 172: ...Service and maintenance 9 4 Disposal SITRANS LR250 PROFIBUS PA 170 Operating Instructions 08 2014 A5E32221386 AC ...
Страница 288: ...LCD menu structure SITRANS LR250 PROFIBUS PA 286 Operating Instructions 08 2014 A5E32221386 AC ...
Страница 289: ...LCD menu structure SITRANS LR250 PROFIBUS PA Operating Instructions 08 2014 A5E32221386 AC 287 ...
Страница 290: ...LCD menu structure SITRANS LR250 PROFIBUS PA 288 Operating Instructions 08 2014 A5E32221386 AC ...
Страница 291: ...LCD menu structure SITRANS LR250 PROFIBUS PA Operating Instructions 08 2014 A5E32221386 AC 289 ...
Страница 292: ...LCD menu structure SITRANS LR250 PROFIBUS PA 290 Operating Instructions 08 2014 A5E32221386 AC ...
Страница 304: ...Index SITRANS LR250 PROFIBUS PA 302 Operating Instructions 08 2014 A5E32221386 AC ...
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