OTT HydroMet

- Model 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.

  • Usage Type: Spot
  • Measurement technology: Mechanical
  • Parameters measured: Flow velocity
  • Product highlights: C31 - the original. Taditional hydrometric current meter with proved quality for use with wading rods, from bridges and at cable-way installations
  • Measurement range: 0.025 ... 10 m/s
  • Accuracy: ± 2%

  • 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.

  • Flow velocity:
    • Measuring range: 0.025 ... 10 m/s
    • Current meter: 1 pulse/revolution
    • Reed relay contact: lifetime > 1 million contacts switches
  • Electrical:
    • Operating voltage range: max. 9V DC
    • Magnetic switch: pressure-tight up to 30bar
  • Material:
    • 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

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