Seven Hills International Limited


 - Water Quality Mointoring Systems



BIOAqua Online Dammed Water Quality Analyser


Reservoirs are essential infrastructures in the water management field. The origin of its waters may be diverse (rain, streams, run-off of cultivated land, etc.), not guaranteeing the quality of the environment because these flows may contain large amounts of nutrients, organic matter and other contaminants.

Likewise, the natural behaviour of dams and reservoirs can actively influence the state of the water. The eutrophication state of some dams represents a serious problem for managing the resource. The BIOAqua Online Dammed Water Quality Analyzer system constitutes the most complete solution on the market for automatic monitoring of the quality of dammed water and the optimization of its use.

BIOAqua Online Dammed Water Quality Analyzer is comprised of a multi parameter self positioning probe that automatically measures chemical and physical properties that represent the quality of water at different depths in dams.

This tool is highly effective for managing water in reservoirs, which allows optimizing operating costs and minimizes organoleptic problems in subsequent purification. BIOAqua Online Dammed Water Quality Analyzer ensures quality control in real time and defines the ideal depth at which water is extracted depending on its end use.

BIOAqua Online Dammed Water Quality Analyzer – Operation

Automatic Operation

BIOAqua Online Dammed Water Quality Analyzer carries out automatic measurements of the parameters at different depths in order to develop profiles graphics. The frequency and depth of the measuring points are configurable.

BIOAqua Online Dammed Water Quality Analyzer has a cleaning system that enables the extension of the system’s autonomy.

Data are collected automatically by the control center for their analysis and operation.

Manual Operation

The measurement process is set off by a local order from the BIOAqua Online Dammed Water Quality Analyzer keyboard or by a remote command.


BIOAqua Online Dammed Water Quality Analyzer - System Components
  • Multi parameter analyser: temperature, pH, conductivity, redox, oxygen, turbidity, chlorophyll and Secchi disk

  • Control system of the multi parameter analyser, which manages the positioning, communication and self-cleaning of the analyser

  • Download data, reporting and remote control of the equipment or a network of the equipment



Unique Characteristics of BIOAqua Online Dammed Water Quality Analyzer
  • Complete system, from the measures collection to the description by profiles graphic

  • Historic record generated of all profiles developed

  • Key information for reservoir water management, enabling the definition of the ideal depth for water extraction in real-time

  • Automatic and remote operation with a high autonomy because of the robustness and the patented cleaning system

  • Easily integrated into control and operational networks (water quality information systems and so on)

  • Quick and easy setting-up




Benefits of BIOAqua Online Dammed Water Quality Analyzer
  • Water companies and authorities can get instant profile of dammed water quality.

  • Water companies can draw water from select depths / areas after reconfirming online water quality using BIOAqua Online Dammed Water Quality Analyzer; this will substantially reduce the drinking water treatment cost.

  • Water Quality changes according to depth and BIOAqua Online Dammed Water Quality Analyzer can provide an accurate information of water quality at different depths.

  • Mass control of artificial and heavily modified (reservoirs), lakes and wetlands.

  • User configurable measurement depths and frequency of measurements.

  • Probe descents to detect water (depth zero)

  • Continuous dammed water quality knowledge helps identify inherent risks during certain seasonal times.

  • Analog measurement of light output as a substitute of Secchi Disk.

  • Help in implementation of the new Legislative Framework DMA/2000/60/EC for control of Artificial Water bodies.

  • Help protect and improve the ecological balance and potential of stored dammed water.


Oxygen Profile at different depths

Reservoir profile (2005, 2006 & 2007)


BIOAqua Online Dammed Water Quality Analyzer - Specifications


Power supply:

220 VAC/50 Hz


700 W without the complete cleaning system

3300 W with the complete cleaning system


Profibus DP, integrated GSM/GPRS Modem,

Front panel RS-232 port, RS-232 port / RS-485 terminals

Temperature 0…50ºC
pH 0…14 uds pH
Redox -2000 … +2000 mV
Conductivity 0 … 8000uS/cm
Oxygen 0 … 20 ppm O2
Turbidity 0 … 300 FAU
Chlorophyll 0 … 200 mg/l Chla
Depth 0 … 80 m
Secchi Disk 0 … 100%


BIOAqua Online Dammed Water Quality Analyzer – Software

BIOAquaView, the desktop-based data download application which allows data download, visualization and export in a user-friendly environment. The software allows tracking events such as sampling status or cleanups. BIOAquaView is the perfect complement to your BIOAqua range of products.