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Flow rate measurement with FLOWBOX flow meter and measuring weir


FLOWBOX flow meter with measuring weir


The subject of our offer is a measuring weir intended for measuring momentary and total flow of the liquid in gravitational channels, with the use of an ultrasonic flow meter FLOWBOX . Upon request, it’s also possible to carry out pre-investment technical consulting, as well as subsequent installation, launching* and protocol-based delivery of flow meter for the use. We also sell individual elements of the measuring set manufactured by us (e.g. only measuring weir or only flow meter FLOWBOX).


* Launching of our ultrasonic flow meter FLOWBOX in your facility (unlike many products of the competition) is very simple and in most cases, it doesn’t require a visit of specialized service – we provide factory pre-programmed (for the given type of flume or measuring weir) and pre-calibrated set (only one parameter needs to be adjusted).




pdf_iconMeasuring weir data sheet

pdf_iconFLOWBOX flow meter data sheet

pdf_iconFLOWBOX flow meter manual




* FLOWBOX flow meter = Ultrasonic level sensor with cable + M1600 Transmitter

zestaw pomiarowy przepływu z przelewem mierniczym



The liquid flow rate measurement with measuring weirs and water rise method is based on the actual liquid level measured by the ultrasonic sensor (radar sensor, optional) at the hydraulic structure converted into the value of flow ratio by the measuring transducer.

The basic condition to apply the method is to provide free, undisturbed outflow of liquid. Moreover The measuring weirs can be used for treated wastewater without solid impurities.


Exemplary measuring weirs manufactured by DI-BOX------------

weir in a well  FLOWBOX flow meter programmed for measuring weir

measuring weir 45 degree  weir

triangle measuring weir  M1600 transmitter

rectangular measuring weir  measuring weir with ultrasonic sensor


Set design - Measuring weirs------------


We offer a wide range of measuring weirs to optimize the flow measurement. The measuring weirs made in accordance with ISO 1438:2008 "Hydrometry - Open channel flow measurement using thin-plate weirs", are installed in measuring wells or in existing ducts. The measuring weirs can be used for treated wastewater without solid impurities.

0,0002<Q[m3/s]<1 0,0003<Q[m3/s]<25
measuring error to 3% measuring error to 5%
triangle measring weir circular measuring weir
0,001<Q[m3/s]<5 0,0032<Q[m3/s]<82
measuring error to 1% measuring error to 3%
rectangular measuring weir trapezoid measuring weir

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