Page 104 SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS A5E33329501
mmmmm
General Operation
Khafagi Venturi
Application information
• Similar to Parshall flume except that the floor is flat bottomed and the sidewalls are
curved.
• For rated flows under free flow conditions, the head is measured 1 x (channel width)
upstream from the beginning of the converging section.
Parameter Value
2.15.1. Primary Measuring Device (PMD)
Exponential Devices
2.15.3.2. Flow Exponent
1.55 (Consult your flume documentation.)
2.15.3.3. Maximum Head
2.15.3.4. Maximum Flow at 20 mA
2.15.3.7. Flowrate Units
2.15.4.1. K Factor
a
a.
Required for exponential device absolute calculation only.
Zero
Head
Front View
Plan View
transducer*
Side View
* The transducer must be above the maximum head by at least the blanking value (see
2.2.4. Near
Range
).
flow
channel
width
1x
channel
width
To Next Page
Loading...
