User's Manual

Page 92 SITRANS LR560 (mA/HART) – INSTRUCTION MANUAL 7ML19985KB01
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Parameters
2.7.4.4. Echo Lock Window
A “distance window” centered on the echo is used to derive the reading.
When a new measurement is in the window, the window is re-centered
and the reading is calculated.
When the value is 0, the window is automatically calculated after each
measurement.
• For slower Measurement Response values, the window grows at a
slower rate.
• For faster Measurement Response values, the window grows at a
faster rate.
2.7.5. Filtering
2.7.5.1. Narrow Echo Filter
Filters out echoes of a specific width.
To remove a false echo from the Echo Profile, take its width in mm and
multiply it by 0.006. Enter the result.
For example, to filter out a spike with 500 mm width, enter 6 or 7 (the
closest integer product of 500 x 0.006).
When a value is keyed in, the nearest acceptable value is entered.
2.7.5.2. Reform Echo
Smooths jagged peaks in the echo profile. Reforms fragmented echoes into
one echo.
Values
Range: 0 to 45 m (or 105 m, depending on model)
Default: 0 m
Note: The Echo Lock window is stored as a standard sample, but
displayed in sensor units. Any value entered for the Echo Lock
window will be rounded to the nearest sample.
Values
Range: 0 to 255
0 = OFF
greater = wider
Values
0 = OFF
greater = wider
Range: 0 to 255 samples
Recommended: 10 samples