A5E33329501 SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS Page 109
mmmmm
General Operation
BS- 3680 Finite Crest Weir
Parameter Value
2.15.1. Primary Measuring Device (PMD)
BS-3680 Finite Crest Weir
2.15.4. PMD Dimensions
Crest Width b
Crest Height p
Crest 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*
Diagonal View
* The transducer must be above the maximum head by at least the blanking value (see
2.2.4. Near
Range
).
Front View
Side View
3 to 4 x h
max
h
p
L
flow
b
Zero Head
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