Commissioning
6.3 Application examples
SITRANS LR250 with mA/HART
Operating Instructions, 10/2019, A5E32220602-AG
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6.3.2 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.
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