AquaScan 620L

Leak Correlator

Leak Noise Correlator

A compact, easy-to-use laptop correlator with cordless sensors and advanced “Auto Filter” software for accurate leak detection.

FEATURES

There are three standard applications for the ZONESCAN 820 logger platform:

User-Friendly Interface

The AquaScan 620L software offers an intuitive, easy-to-use interface, suitable for both beginners and experienced operators.

Universal Applicability

This versatile correlator works with all pipe materials and can be enhanced with stainless steel hydrophone sensors for greater sensitivity on plastic pipes.

Cordless Operation

The AquaScan 620L’s wireless sensor technology eliminates the need for cables, improving safety and efficiency during extended correlation work.

Advanced Software Features

The software includes advanced features like “Auto Filter” for automatic frequency selection, “Notch Filtering” to remove electrical noise, and the ability to save and export correlation results.

CASE STUDIES

Water Leak Detection

Detecting and Localizing a Leak in an Underground Water Pipe

Q&A

How are water leaks detected and localised?

When water leaks from a pressurized pipe, acoustic leak noises are generated. Gutermann specializes in the development of highly sensitive Leak Noise Correlators that detect and localize these acoustic signals, pinpointing the exact source of the leak.

How does the Leak Noise Correlators work?

Correlators are advanced electronic devices used to pinpoint leaks in pressurized pipes, especially when the approximate leak location is unknown and the distances are relatively large. Two or more sensors are placed in contact with the pipe on either side of the suspected leak. These sensors record and wirelessly transmit the acoustic signals to a processing unit. Using mathematical algorithms, the system analyzes the noise profiles—such as the hissing sound of a leak—by correlating the signals received by both sensors and measuring the time difference it takes for the sound to travel along the pipe to each sensor, thus determining the exact leak location.

GUTERMANN is a pioneer in the development of leak-locating correlators. The AQUASCAN correlator range is renowned for its world-leading sensors, compact and ergonomic design, field durability, and advanced filtering capabilities.

How does Network Monitoring work?

Permanent (or fixed) network monitoring involves the deployment of sensors (loggers) within your water distribution network. These sensors continuously gather data on the pipe network and automatically send leak alarms to the control center for prompt action. The systems can operate as standalone units with their own radio transmission network (e.g., ZONESCAN NBIOT) or be integrated into existing infrastructure, such as large AMI networks (e.g., ZONESCAN AMI).

These loggers not only detect the presence of leaks (through leak noise logging) but also perform leak noise correlation to accurately pinpoint the location of leaks within the network

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