Signal Processing (2.4.); Near Range (2.4.1.); Far Range (2.4.2.) - Siemens SITRANS LR560 Operating Instructions Manual

Note
The selected rate will also impact the AVERAGE AMOUNT (2.8.3.) (Page 141) parameter.
For example, a SLOW setting will change it to 0.9, and a FAST setting may require it to be
reduced to a very low value.
8.2.4

SIGNAL PROCESSING (2.4.)

8.2.4.1

NEAR RANGE (2.4.1.)

Factory setting:
Setting range:
Purpose:
Related parameters:
8.2.4.2

FAR RANGE (2.4.2.)

Note
Far Range can extend beyond the bottom of the vessel.
Factory setting:
Setting range:
Purpose:
Description:
Related parameters:
LR560 (FOUNDATION FIELDBUS)
Operating Instructions, 06/2018, A5E34648692-AE
0.278 m (0.91 ft)
0 to 45 m (0 to 131.2 ft) for 40 m device
0 to 105 m (0 to 344.5 ft) for 100 m device
The range in front of the device (measured from the sensor reference point)
within which any echoes will be ignored. This is sometimes referred to as
blanking or a dead zone.
UNIT (2.3.1.) (Page 122)
Value for Low Calibration Pt. + 5 m (16.4 ft)
Min. = Low Cal. Pt.
Max. = 40 m device: 45 m (131.2 ft), 100 m device: 105 m (344.5 ft)
Allows the material level to drop below Low Calibration Point without gen-
erating a Loss of Echo (LOE) state, see CLEF RANGE (2.4.5.4.)
(Page 130).
Use this feature if the measured surface can drop below the Low Cal. Point
in normal operation.
UNIT (2.3.1.) (Page 122)
CLEF RANGE (2.4.5.4.) (Page 130)
Parameter Reference
8.2 SETUP (2.)
127