Aquaprobe - Insertion Type Electromagnetic Flowmeter

AquaProbe II is an economic alternative to full bore metering and has been designed for worldwide needs. It comprises an electromagnetic sensing head mounted on the end of a support rod. This whole assembly can be installed in existing pipelines without the need for the major excavations or alterations to pipework associated with full bore meters. It can also be fitted without interruption to the flow and can be easily removed for periodic calibration or inspection, or inserted at a second location through the provision of tappings and valves on the supply pipelines.

Key features are the wide flow range, with minimum velocities well below insertion turbine or DP devices, and no moving parts, resulting in increased reliability and reduced maintenance. The AquaProbe meets the widest variety of site requirements and applications, from permanent monitoring through to site surveying.

The AquaProbe is designed for installation in existing pipelines by means of a small valved tapping. It is normally installed with the sensing head on the pipe centre-line, but may be located at the critical position (the mean velocity position) a distance of 1/8 of the diameter away from the wall.

It provides an accurate local measurement of the water velocity and, provided the flow profile is fully developed, a good flow volume measurement.

If the profile is not fully developed a traverse of the pipe can be carried out which enables an accurate flow volume measurement to be obtained in non-ideal networks.

Features and Benefits

• Fully submersible, rugged and robust sensor and transmitter - reliable, maintenance free operation in arduous environments
• 'Hot tap' capability - enables installation with no interruption to normal water supply
• Built-in multichannel, multivariable logger
• Good accuracy over wide operating flow range in both forward and reverse flow directions - enables user to accurately measure peak daytime flows and minimal night flows
• Price virtually independent of pipe diameter - low cost alternative to full bore meters
• 'Fit and Flow' - foolproof installation. No on-site setup
• Suitable for permanent or temporary installation - total user flexibility
• No moving components and hence no bearing wear problems - stable calibration and reliable operation
• Choice of transmitter
• Battery Operation
  21/2 year life
  no external power supply required. Facilitates installation in remote location
• AC powering with optional battery backup - Continuous measurement even during power-down