toggle menu


OTT C31 Universal Current Meter for discharge measurements

The OTT C31 Universal Current Meter is designed for flow velocity measurements 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.  OTT C31 Universal current meters mean thousandfold proven quality, precision and reliability - worldwide for decades.
  • Spot
  • Mechanical
  • Flow velocity
  • C31 - the original. Taditional hydrometric current meter with proved quality for use with wading rods, from bridges and at cable-way installations
  • 0.025 ... 10 m/s
  • ± 2%
Request a quote or advice
  • The robust construction and high-quality materials allow operation even under difficult conditions with high accuracy
  • Low starting speed
  • Reinforced meter spindle
  • Cost reduction owing to low maintenance requirements and simple, inexpensive handling
  • World wide proven
  • Universal application for river flow measurements as rod-mounted current meter or as suspended version
  • Use with single-drum winch in combination with a bridge jib/measurement trolley or with double-drum winch cable-way  installation.
  • Calibration and cyclical control of flow velocity and discharge measuring equipments.
Operating Instructions Universal Current Meter C31
OTT Universal Messflügel C31 - CE Konformitätserklärung | Declaration of Conformity | Declaration de Conformité
Download PDF
Flow velocity
Measuring range 0.025 ... 10 m/s
Current meter 1 pulse/revolution
Reed relay contact lifetime > 1 million contacts switches
Operating voltage range max. 9V DC
Magnetic switch pressure-tight up to 30bar
Meter body stainless steel
Propeller aluminium
alternative -plastic  - Hostaform C , yellow
Dimensions & weight
Size dia. x length ø35 x 310mm
Weight w/o propeller 1.26 kg
Download PDF