User's Manual

Page 60 SITRANS LR260 (PROFIBUS PA) – OPERATING INSTRUCTIONS A5E32337685
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Parameters
2.2.3.3.3. Reform Echo
Smooths jagged peaks in the echo profile. Reforms fragmented
echoes into one echo.
2.2.3.5. Range
2.2.3.5.1. Near Range
The range in front of the device (measured from the sensor reference
point
1)
) within which any echoes will be ignored. (This is sometimes
referred to as “Blanking” or “Dead Zone”.) The range is dependent
on the horn type and any extensions.
2.2.3.5.2. Far Range
Maximum distance from the reference point
1)
, within which an echo
should be considered valid.
Values
0 = OFF
greater = wider
Range: 0 to 50 mS
Recommended: 5 to 20 mS; higher is not
recommended.
Related parame-
ters
2.2.3.1.1. Algorithm
2.2.3.3.2. Narrow Echo Filter (NARROW
ECHO FIL.)
2.2.3.1.4. Echo Marker
1)
See Dimensions on page 9.
Values
Factory Defaults
2" horn 0.21 m (8.43")
3" horn 0.28 m (10.95")
4" horn 0.34 m (13.19")
Range: 0 to 31.5 m
Note: Far Range can extend beyond the bottom of the vessel.
Values
Range: Min. = Low Calibration Pt.
Max. for 2" horn = 13 m (42.65 ft)
Max. for 3" horn = 23 m (75.46 ft)
Max. for 4" horn = 31.5 m (103.35 ft)
Default: Value for Low Calibration Pt. + 3 m
(9.43 ft)
Range: 0 to 31.5 m