Siemens 7ML5431 - Page 116

Parameter reference
SITRANS LR250 with mA/HART
116 Operating Instructions, 10/2019, A5E32220602-AG
Material (2.2.3.)
Automatically configures the device to operate in the chosen application type, by changing
one or more of the following parameters:
Propagation Factor (2.8.3.), Position Detect
(2.8.4.2.), and/or CLEF Range (2.8.4.4.).
Options
*
LIQUID
LIQUID LOW DK
a)
(low dielectric liquid - CLEF algorithm enabled)
Related parameters
Propagation Factor (2.8.3.)
Position Detect (2.8.4.2.)
CLEF Range (2.8.4.4.)
a)
dK < 3.0
You can configure each of the related parameters to suit your particular application.
Damping Filter (2.2.4.)
The time constant for the damping filter. The damping filter smooths out the response to a
sudden change in level. This is an exponential filter and the engineering unit is always in
seconds [see Damping (Page 241) for more detail].
Values
Range: 0 to 100.000 s
Default: 10.000 s
Calibration (2.3.)
Note
We recommend using the Quick Start wizard to configure the device.
Low Calibration Pt. (2.3.1.)
Distance from sensor reference point
1)
to Low Calibration Point. Units are defined in Units
(2.2.1.)
Values
Range: 0 to 20 m. Default: 20.00 m
Related parameters
Units (2.2.1.)
Far Range (2.8.2.)
1)
The point from which level measurement is referenced, see Threaded Horn Antenna with
extension (Page 189), Flanged Horn with extension (Page 194), and PTFE Flanged
encapsulated antenna (3"/DN80/80A sizes and larger) (Page 200).