Siemens Sitrans LR250 User Manual

Commissioning
6.3 Application examples
SITRANS LR250 (PROFIBUS PA)
68 Operating Instructions, 08/2014, A5E32221386-AC
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
Sensor reference point
⑤
5 m
②
High calibration point
⑥
Low calibration point
③
0.5 m
⑦
0% level
④
100% level
Parameter type
Parameter No. /Name
Options/
Values
Function
Quick Start
Wizard
parameters
Material (1.2.)
LIQUID
Response Rate (1.3.)
MED
Medium =1 m/minute
Units (1.4.)
M
meters
Operating mode (1.5.)
LEVEL
Level
Low Calibration Point (1.6.)
5
5 m (16.4 ft)
High Calibration Point (1.7.)
0.5
0.5 m (1.64 ft)
Apply? (Apply changes) (1.8.)
YES
Transfers Quick Start
settings to device.
Independent
parameters
LOE Timer (2.3.6.)
2
2 minutes
Mode
(2.6.9.1.)
Substitute
value
User-defined value to be
used.
Value (2.6.9.2)
4.5
4.5 m (14.76 ft)
Press
Mode
to return to
Measurement
mode. .

Siemens Sitrans LR250 Specifications

General

Brand	Siemens
Model	Sitrans LR250
Category	Transmitter
Language	English