Siemens SITRANS LUT400 Series - Page 421

Page 108 SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS A5E33329501
mmmmm
General Operation
BS- 3680 U-Flume
Parameter Value
2.15.1. Primary Measuring Device (PMD) BS-3680 U-Flume
2.15.4. PMD Dimensions Approach Diameter Da
Throat Diameter D
Hump Height p
Throat Length L
2.15.3.3. Maximum Head
2.2.5. Far Range
2.15.3.7. Flowrate Units
2.15.3.1. Method of Flow Calculation
2.15.3.4. Maximum Flow at 20 mA
transducer*
3 to 4 x h
max
Plan View
Diagonal View
Front View
Side View
Zero Head
h
p
L
D
Da
flow
* The transducer must be above the maximum head by at least the blanking value (see
2.2.4. Near
Range
).