Liquid Resin In Storage Vessel, Level Measurement - Siemens SITRANS LR250 Operating Instructions Manual

Commissioning
6.3 Application examples
6.3.1

Liquid resin in storage vessel, level measurement

Note
Minimum distance from flange face to target is limited by Near Range (2.5.1.).
To obtain level measurement proportional to resin levels:
● Low Calibration Pt. = 5 m (16.4 ft) from sensor reference point
● High Calibration Pt.= 0.5 m (1.64 ft) from sensor reference point
● Max.fill/empty rate = 0.2 m/min (0.65 ft/min)
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
Parameter type
Quick Start
Wizard
parameters
Independent
parameters
Press Mode
68
Sensor reference point
High calibration point
0.5 m
100% level
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.)
LOE Timer (2.3.6.)
Mode (2.6.9.1.)
Value (2.6.9.2)
to return to Measurement mode. .
⑤
5 m
⑥
Low calibration point
⑦
0% level
Options/
Values
LIQUID
MED
M
LEVEL
5
0.5
YES
2
Substitute
value
4.5
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC
Function
Medium =1 m/minute
meters
Level
5 m (16.4 ft)
0.5 m (1.64 ft)
Transfers Quick Start
settings to device.
2 minutes
User-defined value to be
used.
4.5 m (14.76 ft)