NivuFlow Stick

The Flow Stick is a mobile measurement system for discharge measurement in watercourses, such as rivers, streams and canals.

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Advantages

The compact system can be easily transported and is ready for use within moments. Convenient operation via smartphone or tablet makes measurements simple and intuitive. The system contains no wearing parts and is maintenance-free. All components are light weight and compactly attached to the holding rod, which makes handling in the water easy and safe.

The stored data can be read out directly on site via WLAN. Previous measurements can be loaded and visualised. Deviations in the measurement quality are signalled by the system and the quality indication is always stored in the data.

Complete detection of the profile
Discharge calculation method according to ISO 748:2021: Mean-Section, Mid-Section method
Integrated hydrostatic level measurement

NivuFlow Stick

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+44 (0) 1428 661 660 Call Van Walt
+64 (0)3443 5326 Call Van Walt
+27 21 518 1347

NivuFlow Stick Equipment Options:

Applications

Storm water runoff studies
Measuring flows in rivers, culverts and streams
Monitoring water velocity in ditches and canals
Irrigation channel measurement & control
Surface water monitoring
Industrial outflow monitoring

Specifications

Depth measurement

Measurement range (pressure cell): 0…5 m

Temperature measurement

Resolution 0.01°C, accuracy 0.1°C

Accuracy

< 0.5 % of full scale

Acoustic frequency

1MHz – 3MHz

Minimum water depth for accurate velocity measurement

Min. 30 mm above sensor
Max. immersion depth: up to 100 cm with special accessory

Temperature measurement

Resolution 0.01°C, accuracy 0.1°C

Data memory

1400 discharge measurements

Data transmission

Download via WLAN

Operating temperature

-30°C-+70°C

Storage temperature

-30°C-+70°C

Power supply

8xAA standard or rechargeable batteries

Lifetime

12h permanent use (for operation with 2650 mAh batteries)

Protection Enclosure

IP67

Protection sensor

IP68

Measurement principle

Ultrasonic cross correlation (flow velocity)
Hydrostatic (depth measurement)

TECHNICAL DRAWING

Resources

Manuals & Downloads

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