OSSB1 Universal Current MeterOSSB1 Universal Current MeterOSSB1 Universal Current MeterOSSB1 Universal Current MeterOSSB1 Universal Current MeterOSSB1 Universal Current Meter
OSSB1 Universal Current Meter

OSSB1 Universal Current Meter

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The OSS-B1 universal current meter is a field-proven instrument for measuring the velocity of water in open and closed channels. It is used for point measurements of flow velocities on the water surface or in vertical profiles down to the riverbed at flow speeds of…  Read more

Brochure
Accuracy +/-1 %
Calibration
  • Each current meter individually calibrated in HyQuest Solutions’ calibration tank
  • Compliant with ISO 3455:1976 and ISO 2537:1988
  • Calibration certificate delivered with each current meter
Fan / Propeller Specifi cations (The choice of fan/propeller depends on the specifics of the site such as discharge and the geometry of the riverbed or channel. Please contact us for advice.)
Fan No. Diam. x Pitch Start Velocity (m/sec) Max. Velocity (m/sec) Component Effect
A 100 mm x 0.125 m 0.025 5 +/-45 °
1 125 mm x 0.250 m 0.025 10 +/-5 °
2 125 mm x 0.500 m 0.040 10 +/-5 °
4 80 mm x 0.125 m 0.025 4 +/-5 °
Scope of Delivery (basic kit)
  • Fan A (additional fans available, see table above)
  • 3 m connecting lead, tools, oil, spare bearings, spare reed switch assembly
  • Rod: 1.8 m (3 x 0.6 m), 20 mm diameter, in canvas carry bag with point and base plate
  • Carry case (durable waterproof pelican case)
Packed Dimensions & Mass (basic kit)
  • Kit in carry case: 500 x 400 x 200 mm; 8 kg
  • Wading rods (1.8 m in canvas carry bag): 700 x 100 mm; 2 kg
  • Alt

    OSSPC1 Miniature Current Meter

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  • Alt

    RB01 Redback Current Meter

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The OSS-B1 universal current meter is a field-proven instrument for measuring the velocity of water in open and closed channels. It is used for point measurements of flow velocities on the water surface or in vertical profiles down to the riverbed at flow speeds of 0.025 m/s to 10 m/s.

The OSS-B1 is made from durable corrosion-resistant stainless steel and it is suitable for use in the most extreme environments. It has been designed for lifetime trouble-free operation under normal use and when properly maintained.

The OSS-B1 can be operated

  • using a wading rod
  • from a boat using a single drum gauging winch/winch board
  • from a bridge using a single drum gauging winch/winch board or a bridge crane
  • on a cableway attached to a towing device (with suitable gauging weight)

HyQuest Solutions’ current meters are modular systems: You can tailor the perfect solution for your application with a choice of several fans, rods, accessories, etc.

The full range of equipment needed for successful stream gauging is available from HyQuest Solutions. Please contact us for advice!

Alternative Model for Shallow Waters

The HyQuest Solutions miniature current meter OSS-PC1 is used for point measurement of flow velocities in running waters (river riparian zone, brooks, and canals) with low water level.

  • Corrosion-resistancy: 
    • Body: polished stainless steel
    • Fans: polished stainless steel, easily grinded, re-polished and balanced
  • Precise and reliable measurements: Encapsulated magnetic reed switch ensuring reliability and a ‘clean’ contact signal
  • Direct results: Velocity displayed directly with HyQuest Solutions’ counters CMCsp, PVD100 or PVD200, or with the paperless stream gauging tablet application HydroTab/CMCbt
  • Easy deployment on standard wading rods (supplied with standard kit), bank operated winches and traversing systems

The OSS-B1 is especially suitable for

  • Water Velocity Measurements
  • Stream Gauging
  • Discharge Measurement Thanks to its low start velocity of only 0.025 m/s, the OSS-B1 shows correct results even in very slowly flowing channels.