Horizontal Vessel With Volume Measurement - Siemens LR250 Instruction Manual

Horizontal vessel with volume measurement

Note: The minimum distance from the flange face to the target is limited by Near Range
(2.8.1.).
To obtain level measurement/4 to 20 mA output 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 go into Fail-safe High after 2 minutes.
sensor
reference
0.5 m
point
High
Cal
Point
3.5 m
Low Cal
Point
A = 0.8 m
Parameter
Parameter No./Name
type
Material
Response Rate
Quick
Units
Start
Operation
Wizard
parame-
Low Calibration Point
ters
High Calibration Point
Wizard Complete
Vessel Shape (2.7.1.1.)
Indepen-
Maximum Volume (2.7.1.2.)
dent
Vessel Dimension A (2.7.1.3.)
parame-
Vessel Dimension L (2.7.1.4.)
ters
LOE Timer (2.5.2.)
Material Level (2.5.1.)
Return to Measurement: press Mode
7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL
L = 6 m
Options/
Function
Values
LIQUID
MED Medium =1 m/minute
M meters
Level is reported as Volume
LEVEL
when a vessel shape is selected.
3.5 3.5 m (11.48 ft)
0.5 0.5 m (1.64 ft)
Transfers Quick Start settings to
FINISH
device.
PARABOLIC ENDS Defines vessel shape.
8000 8000 liters
0.8 0.8 m (2.62 ft)
6 6 m (19.68 ft)
2 2 minutes
HI Fail-safe level set to High
to start normal operation.
100% = 8000 l
volume
reading
A = 0.8 m
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