FIEDLER > Flow measurement

Flow measurement

Flow measurement devices are used to accurately monitor the volume of fluids in pipes or open channels. They provide reliable data for water management, industrial, and technological applications and enable effective monitoring and control.

Product type
Equipment for Pumping Tests on Boreholes and Wells

Equipment for Pumping Tests on Boreholes and Wells

The well and borehole pumping test system is used to automatically perform hydrodynamic pumping and head rise tests to verify the yield of drilled wells. The system allows for long-term autonomous operation without the need for an operator to be present at the equipment. The control and data-logging unit continuously measures the water level in the well using a submersible sensor and regulates the pump speed via a variable-frequency drive. This makes it possible to maintain a constant, preset flow rate regardless of the current water level, or conversely, to regulate the flow rate so that a constant water level is maintained. The measured water level and flow rate values are stored in the device’s memory and, at set intervals, are transmitted via GSM/GPRS data transfer to a server for archiving, display, and further processing.

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Doppler flow measurement

Doppler flow meters track the movement of particles in a fluid and convert it into an accurate flow rate. They are suitable for monitoring flow rates in pipes and open channels and provide reliable data even under demanding conditions.

Evaluation units for KDO probes

The data acquisition units for KDO probes are used to process and analyze data from velocity probes. They enable the accurate measurement of flow rates and hydraulic parameters and their transmission to control and monitoring systems.

Q2/KDO - Velocity Flow Meter

Q2/KDO - Velocity Flow Meter

The flow measurement system consists of a Q2/KDO or Q2-G/KDO telemetry unit, a flow velocity sensor, and a level sensor for the measured medium.

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Velocity KDO probes

KDO velocity probes are used to measure the velocity and direction of fluid flow. They provide accurate and reliable data for monitoring flow rates and evaluating hydraulic parameters in pipes or open channels.

KDO/S - Sensor - Version for sewer systems

KDO/S - Sensor - Version for sewer systems

The KDO/S sensor is designed for installation in sewer and drainage networks, where it provides continuous measurement of wastewater levels. It is optimized for demanding operating conditions and integration into FIEDLER AMS monitoring systems.

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KDO/P - Sensor - Model for Mounting on a Pipe Wall

KDO/P - Sensor - Model for Mounting on a Pipe Wall

The KDO/P is a rugged sensor designed for installation in pipe walls, providing reliable measurement of liquid level or flow velocity. It is optimized for use in sewer and process pipelines and is compatible with the FIEDLER AMS solution.

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Evaluation and control units

Evaluation and control units are used to analyze measured data and automatically control technological processes. They enable reliable monitoring, parameter evaluation, and efficient management of water management and industrial systems.

Multi-channel units

Multichannel units enable the simultaneous measurement and control of multiple process parameters or processes. They ensure reliable data collection, efficient monitoring, and easy integration into larger measurement and control systems.

H3, H7 - Multichannel Recording and Control Units

H3, H7 - Multichannel Recording and Control Units

Versatile multi-channel data acquisition and control unit with GSM/GPRS (Wi-Fi) technology—Data Logger. The unit is suitable not only for monitoring and controlling water supply facilities (water reservoirs, pumping stations, transfer or metering shafts, water treatment plants, and wastewater treatment plants), but also for environmental monitoring. The unit offers high reliability, measurement accuracy, low power consumption, and automatic transmission of measured data to a server database.

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Q2 - Flow Meter for Open Channels

Q2 - Flow Meter for Open Channels

A four-channel evaluation unit for measuring instantaneous flow rate and total volume flow in open-channel cross-sections. The Q2 flowmeter contains predefined consumption equations that express the relationship between water level and instantaneous flow rate for all common weirs and Parshall flumes. The Q2 unit can also be used as a universal level meter to which a variety of sensors can be connected.

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Q2/KDO - Velocity Flow Meter

Q2/KDO - Velocity Flow Meter

The flow measurement system consists of a Q2/KDO or Q2-G/KDO telemetry unit, a flow velocity sensor, and a level sensor for the measured medium.

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Single-channel units

Single-channel units are used to measure and control a single process parameter or process. They provide reliable data collection and easy integration into larger measurement and control systems.

M2001-E - Display and Calibration Unit

M2001-E - Display and Calibration Unit

The M2001-E single-channel display and calibration unit is designed for continuous measurement of dissolved oxygen, pH, redox potential, conductivity, or turbidity. The unit communicates with the connected sensor via an RS485 bus using the FINET or Modbus RTU protocols. The communication cable is terminated with a connector featuring a high IP67 rating and is included with the measurement system. If necessary, the communication cable can be extended up to 500 m.

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M2001Q - Flow Meter

M2001Q - Flow Meter

The M2001Q recording unit is designed to measure instantaneous flow rate and calculate the volume of water that has flowed through the system. Depending on the type of connected measuring probe or sensor, flow can be monitored in an open channel (if an ultrasonic or pressure level sensor is connected) or in a pipe (the unit is connected to the output of an inductive flowmeter).

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Parshall flumes and weirs

Parshall flumes and weirs are used to accurately measure water flow in open channels. They enable reliable monitoring and evaluation of flow rates for water management, industrial, and environmental applications.

Measuring weirs

Weir gauges are used to accurately measure water flow in open channels and reservoirs. They enable reliable monitoring and evaluation of flow rates for water management, industrial, and environmental applications.

Specific Overflows

Specific Overflows

Weir gauges are used to measure instantaneous flow based on the Q/h curve—the consumption equation (the relationship between instantaneous flow and the water level upstream of the weir).

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Parshall flumes

Parshall flumes are used to accurately measure water flow in open channels. They provide reliable data for water management, industrial, and environmental applications.

Parshall flumes

Parshall flumes

Parshall flumes are among the most widely used weir structures designed to measure both instantaneous flow and total volume of wastewater by measuring the water level in the flume and applying the appropriate consumption equation.

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Sets for well pumping tests

Testing systems for drilled wells are used to measure flow rate and changes in water level during pumping capacity tests. They enable reliable data collection and evaluation of well performance for water management and environmental applications.

Well pumping tests

Pumping tests on drilled wells are used to determine the well's capacity and hydraulic parameters. They enable the reliable collection of data on flow rate and water level for water management and environmental applications.

Tipping bucket flowmeter

Paddlewheel flow meters are used to accurately measure the flow of liquids in pipes. They provide reliable data for water management, industrial, and technological applications and enable continuous flow monitoring.

Bucket flowmeter

A tilt-wing flowmeter is used for the precise measurement of liquid flow in pipes. Thanks to its simple operating principle, it ensures reliable data collection and continuous flow monitoring in various applications.

PF500 - Paddle-Type Tipping-Bowl Flowmeter

PF500 - Paddle-Type Tipping-Bowl Flowmeter

The PF500 flow meter’s robust stainless steel construction consists of two interconnected cups, each with a capacity of 750 ml, which are mounted on a rotating shaft. Using rubber stops and a balancing mechanism, the flow meter is calibrated so that the cups tip over when the water volume reaches 500 ml. Each time the cups tip over, the relay contacts close briefly, and this event is then stored in the connected data logger.

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