Siemens SITRANS L, Operating Instructions Manual, Page: 59 / 269

Commissioning
6.3 Application examples
SITRANS LR250 with FOUNDATION FIELDBUS
Operating Instructions, 09/2021, A5E32221411-AH
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You can use these examples as setup references. Enter the values in the parameter tables to
select the corresponding functions.
Configure the basic settings using the Quick Start wizard parameters. (These parameters are
inter-related, and changes take effect only after you select FINISH in final step: Wizard
Complete.)
In each example, after performing a Quick Start, navigate to the other required parameters
(either via the handheld programmer or via AMS Device Manager) and enter the appropriate
values.
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/4 to 20 mA output proportional to resin levels:
•
Low Calibration Pt. = 5 m (16.5 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 go into Fail-safe High 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