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Flow measurement

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.

  • Automatic performance of hydrodynamic pumping and head tests
  • Control of pumping to maintain a constant flow rate or water level
  • Automatic and manual operating modes
  • Continuous measurement of water level and flow rate
  • Recording of measured values in the device’s memory
  • Remote data transmission via GSM/GPRS
  • Data display and processing via a web browser
  • Color graphic touchscreen for device display and control
  • Frequency-controlled pump speed regulation
  • Option to remotely configure pumping test parameters
  • Option to add pH, conductivity, temperature, and turbidity sensors
  • Option to monitor water levels in other boreholes and wells

Description

The basic configuration consists of a control panel with an H3-G-TB3 control unit, a frequency converter, and control elements for both manual and automatic operation, a FLODIS water meter with a CYBLE NF 001 inductive speed sensor, and a TSH37 submersible level sensor.
The system can operate in automatic or manual mode. The measured data is displayed on the measuring station’s color graphic touchscreen, which is also used to configure and control the system.
In automatic mode, the system regulates the pump speed based on the required flow rate or water level. The measured data is transmitted via GSM/GPRS to a server, where it is accessible through a standard web browser on a PC or mobile phone.
The measurement range of the level sensor, cable length, and water meter type can be customized according to the customer’s requirements when placing an order. The system can also be expanded to include additional sensors for measuring water quality parameters.

Applications

  • For the automatic performance of hydrodynamic pumping and head tests on drilled wells
  • For verifying the yield of boreholes and wells
  • For long-term monitoring of changes in water level and flow rate during a pumping test
  • For controlling pumping to maintain a constant flow rate or constant water level
  • For applications requiring unattended, automatic operation
  • Suitable for hydrogeological measurements, water management, research institutes, and other applications related to the assessment of groundwater yield

Technical specifications

Technical Specifications Equipment for Pumping Tests on Boreholes and Wells
Control Unit H3-G-TB3
Frequency Converter ATV320U15M2C
Power Supply 230 V AC / 16 A
Pump Output 3 x 400 V AC / 16 A
Maximum Pump Power 1.5 kW
Water meter FLODIS 2.5-15-165-3/4, Qn = 2.5 m³/h, DN 15, L = 165 mm, G ¾"
Water meter speed sensor CYBLE NF 001, single output, K = 1
Level sensor TSH37, measuring range 0–40 m v.s., 50 m cable
Operating mode automatic / manual
Pump control constant flow / constant level
Data transmission GSM/GPRS
Display color graphic touchscreen
Remote Access PC web browser / mobile phone
Data Output CSV (Excel)
Expandability pH, conductivity, temperature, turbidity, and other measured parameters

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Equipment for Pumping Tests on Boreholes and Wells



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