Parameter reference
SITRANS LR250 with FOUNDATION FIELDBUS
132
Operating Instructions, 09/2021, A5E32221411-AH
Nominal Pipe Size
a)
40 mm (1.5")
50 mm (2")
80 mm (3")
100 mm (4")
Propagation Factor
0.9844
0.988
0.9935
0.9965
CLEF Range (2.5.7.4.)
Low calibration
point - 700 mm
(2.29 ft)
b)
Low calibration
point - 700 mm
(2.29 ft)
b)
Low calibration
point - 1000
mm (3.28 ft)
b)
Low calibration
point - 1000 mm
(3.28 ft)
b)
a)
Since pipe dimensions may vary slightly, the propagation factor may also vary.
b)
CLEF range covers the whole measurement range except first 700 or 1000 mm from unit
reference
point (see A in graphic below)
①
sensor reference point
③
low calibration point
②
air gap
④
CLEF range 2.5.7.4.
A
700 or 1000 mm
Note
Flanged encapsulated antenna
For Flanged encapsulated antenna (7ML5432) match the process connection size to the pipe
diameter whenever possible (for example, mount a DN80/3" flange on DN80/3" pipe).
Minimum Sensor Value (2.5.4.)
The minimum usable value for the measuring range, in units defined in
Unit (2.3.1.)
.
(Default
= 0.0 m)
To view this parameter via AMS Device Manager see
Range
under Signal Processing (LTB)
(Page 80).
Maximum Sensor Value (2.5.5.)
The maximum usable value for the measuring range, in units defined in
Unit (2.3.1.)
.
(Default = 33.0 m)
To view this parameter via AMS Device Manager see
Range
under Signal Processing (LTB)
(Page 80).