C31 Universal Current Meter is designed for flow metering in combination with hand-held wading rods or cable suspended from a bridge or boat.
Different accessories like sounding weights (middle pieces), sounding reels (winches), cable ways etc. allow the setup of a complete flow monitoring station.
The OTT Universal Current Meter C31 is used for measurement of water velocity:
Universal application on different fixing devices, as rod-mounted current meter or as suspended version with single-drum winch in combination with a bridge jib/measurement trolley or with double-drum winch in combination with a cable-way installationh
Calibration and cyclical control of flow velocity and discharge measuring equipments
Efficiency tests of power station turbines (cross brace)
Cost reduction owing to low maintenance requirements and simple, inexpensive handling
The robust construction and high-quality materials allow operation even under difficult conditions with high accuracy
Low starting speed due to robust ball bearings
Reinforced meter spindle
Flow velocity from 0.025 m/s to 10 m/s
Current meter reed relay contact 1 pulse/revolution lifetime > 1 million contacts switches
Operating voltage range max. 9V DC
Magnetic switch pressure-tight up to 30bar
Material - meter body brass - gal Ni 8mt
Material - propellor gal Ni 12 high gloss alternative -plastic - Hostaform C , yellow
Size dia. x length up to tip of propeller ø35 x 310mm
Weight w/o propellor 1.26 kg
The rotation rate of the precisely calibrated propeller is proportional to water velocity. The velocity is determined by counting the number of propeller revolutions over a pre-selected time period with a counter unit.