Operating Instructions

Parameter type Parameter No./Name Options/
Values
Function
Independent pa‐
rameters
Vessel Shape (2.7.1.1.) PARABOLIC
ENDS
Defines vessel shape.
Maximum Volume (2.7.1.2.) 8000 8000 liters
Vessel Dimension A (2.7.1.3.) 0.8 0.8 m (2.62 ft)
Vessel Dimension L (2.7.1.4.) 6 6 m (19.68 ft)
LOE Timer (2.5.2.) 2 2 minutes
Material Level (2.5.1.) HI Fail-safe level set to High
Return to Measurement: press Mode to start normal operation.
6.3.3 Application with stillpipe
Note
● Near Range (2.8.1.) (Blanking) will be set at the factory. Check the process connection tag
for specific values.
● Suitable pipe diameters are 40 mm (1.5") to 100 mm (4").
● The pipe diameter must be matched with the antenna size. Use the largest antenna size that
will fit the stillpipe/bypass pipe. See Dimensions (Page 175).
● See Mounting on a Stillpipe or Bypass Pipe (Page 29) for installation guidelines.
This application is to obtain a level measurement and corresponding 4 to 20 mA output
proportional to the oil level in a fuel storage vessel.
● Low Calibration Pt. is 5 m (16.5 ft) from the sensor reference point.
● High Calibration Pt. is 0.5 m (1.65 ft) from the sensor reference point.
● The stillpipe inside diameter is 50 mm (1.96").
● The maximum rate of filling or emptying is about 0.1 m (4")/min.
1
3
4
6
5
7
2
① sensor reference point ⑤ 5 m
② high calibration point ⑥ 50 mm I.D.
③ 0.5 m ⑦ low calibration point
④ vent hole
Commissioning
6.3 Application examples
SITRANS LR250 with mA/HART
60 Operating Instructions, 10/2019, A5E32220602-AG