Leopold Lagco Flume - Siemens SITRANS LUT400 Operating Instructions Manual

Leopold Lagco Flume

Plan View
Side View
* The transducer must be above the maximum head by at least the blanking value (see
Range
).
2.15. 1 . Primary Measuring Device (PMD)
2.15.3.2. Flow Exponent
2.15.3.3. Maximum Head
2.15.3.4. Maximum Flow at 20 mA
2.15.3.5. Zero Head Offset
2.15.3.7. Flowrate Units
b
2.15.4.1. K Factor
a.
Typical Flow Exponent for Leopold Lagco Flume; consult your flume documen-
tation.
b.
Required for exponential device absolute calculation only.
Application information
• Designed to be installed directly into pipelines and manholes
• Leopold Lagco may be classed as a rectangular Palmer-Bowlus flume
• Sized by pipe (sewer) diameter
• For rated flows under free flow conditions, the head is measured at a point
upstream referenced to the beginning of the converging section. Refer to the
following table:
Flume Size
(pipe diameter in inches)
4-12
Page 102 SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS
flow
diverging
converging
point of measurement
Parameter
15
18
21
throat
Zero
Head
Value
Exponential Devices
a
1.547
Point of Measurement
cm
2.5
3.2
4.4
5. 1
Front View
transducer*
2.2.4. Near
inches
1
1.25
1.75
2
A5E33329501