Horizontal Vessel With Volume Measurement - Siemens Sitrans LR250 Instruction Manual

Horizontal vessel with volume measurement

Note:
The minimum distance from the flange face to the target is limited by Near Range
(2.2.3.5.1.).
To obtain level measurement proportional to vessel volume in a chemical vessel:
Low Calibration Point = vessel bottom (3.5 m from sensor ref. point)
High Calibration Point = 0.5 m from sensor reference point.
Max. fill/empty rate = 0.2 m/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
Parameter
Parameter Name/No.
type
Material (1.1.)
Response Rate (1.2.)
Units (1.3.)
Quick
Start
Operation (1.4.)
Wizard
parame-
Low Calibration Point (1.5.)
ters
High Calibration Point (1.6.)
Apply? (Apply changes) (1.7.)
Vessel Shape (2.2.2.2.)
Max Volume (2.2.2.3.)
Indepen-
Dimension A (2.2.2.4.)
dent
Dimension L (2.2.2.5.)
parame-
LOE Timer (2.4.1.)
ters
Fail-safe Mode FB1 (2.4.2.)
Fail-safe Value FB1 (2.4.3.)
Return to Measurement: press Mode
7ML19985JF02 SITRANS LR250 (PROFIBUS PA) – INSTRUCTION MANUAL
A
= 0.8 m
to start normal operation.
L
= 6 m
Options/Values
LIQUID
MED
M
LEVEL
3.5
0.5
YES
PARABOLIC ENDS
8000
0.8
6
2
Substitute value
4.5
100% = 8000 l
volume
reading
A
= 0.8 m
Function
Medium =1 m/minute
meters
Level is reported as Volume
when a vessel shape is
selected.
3.5 m
0.5 m
Transfers Quick Start
settings to device.
Defines vessel shape.
8000 liters
0.8 m
6 m
2 minutes
User-defined value to be
used.
4.5 m
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