Siemens SITRANS LR200 7ML5422, Руководство по эксплуатации

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SITRANS LR200 with mA/HART
Operating Instructions, 05/2019, A5E32337676-AE
113
Note
CLEF Range is referenced from Low Calibration Point (process empty level).
①
CLEF range
②
Sensor reference point
③
Low calibration point (process empty level)
In applications with low dK materials, we recommend setting CLEF Range parameter to 0.5
m (1.64 ft) and Position detect parameter to Hybrid.
7.2.7.5 Sampling (2.8.5.)
Sampling provides a method of checking the reliability of a new echo before accepting it as
the valid reading, based on numbers of samples above or below the currently selected echo.
Echo lock (2.8.5.1.)
Description Selects the measurement verification process. For more details, refer to Echo
Lock (Page 175).
Options Lock Off
Maximum Verification (not recommended for radar)
Material Agitator (factory setting)
Total Lock (not recommended for radar)
Related
parameters Fill rate/min (2.4.2.) (Page 102)
Empty rate/min (2.4.3.) (Page 102)
Up sampling (2.8.5.2.) (Page 114)
Down sampling (2.8.5.3.) (Page 114)
Note
For radar applications, Material Agitator is the most often-used setting, to avoid agitator
blade detection.