Siemens 7ML5431 - Page 67

Commissioning
6.3 Application examples
SITRANS LR250 with mA/HART
Operating Instructions, 10/2019, A5E32220602-AG
67
①
sensor reference point
⑤
5 m
②
high calibration point
⑥
50 mm I.D.
③
0.5 m
⑦
low calibration point
④
vent hole
Parameter type
Parameter No./Name
Options/Values
Function
Quick Start Wizard
Introduction
NEXT
Continue with Wizard.
Language
NEXT
Continue with current
language.
Material
LIQUID LOW DK
Response Rate
MED
Medium =1 m/minute
Units
M
meters
Operation
LEVEL
Level is reported as
Volume when a vessel
shape is selected.
Low Calibration Point
5
5 m (16.5 ft)
High Calibration Point
0.5
0.5 m (1.64 ft)
Wizard Complete
FINISH
Transfers Quick Start
settings to device.
Independent parame-
ters
Propagation Factor
(2.8.3.)
a)
0.988
P.F. for a 50 mm
(1.96") I.D. stillpipe
Position Detect
(2.8.4.2.)
HYBRID
CLEF Range
(2.8.4.4.)
a)
4.3 Low calibration point -
0.7 m = 4.3 m (14.1 ft)
a)
The recommended values for the propagation factor and for CLEF range are dependent on the
stillpipe diameter. Refer to the next table for values.