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6.2.2
Horizontal vessel with volume measurement
Note
The minimum distance from the flange face to the target is limited by Near Range (2.5.1.).
To obtain level measurement proportional to vessel volume in a chemical vessel:
● Low Calibration Point = 3.5 m (11.48 ft) from sensor reference point
● High Calibration Point = 0.5 m (1.64 ft) from sensor reference point
● Max. fill/empty rate = 0.2 m/min (0.65 ft/min)
Select vessel shape, Parabolic Ends, and enter values for A and L, to obtain a volume reading
instead of level.
In the event of a loss of echo: SITRANS LR250 is to report a user-defined value of 4.5 m (14.76
ft) after 2 minutes.
①
②
③
④
⑤
Parameter type
Quick Start
Wizard
parameters
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 01/2014, A5E32221386-AB
Sensor reference point
0.5 m
High calibration point
3.5. m
Low calibration point
Parameter No./Name
Material (1.2.)
Response Rate (1.3.)
Units (1.4.)
Operating Mode (1.5.)
Low Calibration Point (1.6.)
High Calibration Point (1.7.)
Apply? (Apply changes) (1.8)
⑥
A = 0.8 m
⑦
L = 6 m
⑧
100% = 8000 L
⑨
Volume reading
Options/
Values
LIQUID
MED
M
LEVEL
3.5
0.5
YES
Commissioning
6.2 Application examples
Function
Medium =1 m/minute
meters
Level is reported as
Volume when a vessel
shape is selected.
3.5 m (11.48 ft)
0.5 m (1.64 ft)
Transfers Quick Start
settings to device.
53
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