Discharge - Current meter Ott C2
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Parameter to be measured:
Flow velocity (discharge)
Method:
propeller
Equipment:
C2:
- propellers
- axle
- wading rod
- counting unit (e.g. Ott Z400)
Advantages:
- the quasi-standard; benchmark for other methods
- simple no-fuss mechanics
- "sensor" (propeller) response is directly visual
- insensitive to suspended sediment, temperature, conductivity
- comparatively small case including wading rods
Disadvantages:
- poor response in low velocities
- maintenance of ball bearings (oil)
- mechanical vulnerability
- no immediate calculation of discharge (except with the advanced counting units that provide these option), no data storage
What to watch out for:
- submerged weeds, low velocities, piranhas
Price:
- ~ 8000 € (2008)
Links
Discharge - comparison of measurements (C2, Flowtracker, Flowsens, ADC, tracer, dipping rod)
Other related web sites:
Projects that used the above equipment: http://uni-potsdam.de/sesam/