District metering solutions for drinking water networks
What is District Metering?
Preserving water resources, monitoring volumes flowing through networks, locating leaks, making savings and reducing unbilled water volumes are some of the daily concerns of contract operators. Network district metering offers an effective solution to this permanent challenge.
The principle of district metering is to measure distributed drinking water and the water leaving the network (billed water) and to divide the network into consistent sectors (500 to 3000 subscribers). The volume of water is also measured when it enters and leaves each sector in order to improve knowledge of the network. Remote meter reading with SOFREL LS data loggers very quickly detects the appearance of a leak and guides the network maintenance teams to the leaking sector.
Data and calculations (average/min./max. flow, night flow) performed by the data logger are regularly transmitted via the GSM/GPRS network to the central systems for analysis. Daily processing of district metering data obtained through telemetry and SCADA has become a key factor in reducing water losses and improving network output.
Remote reading for district meters
• daily volumes distributed in the network,
• night-time volumes according to time slots,
• minimum, maximum and average flows,
• pressure readings, etc.
This data remotely provides a permanent view of volumes of water passing through different network sectors and cuts running costs (no more manual meter reading rounds). So-called "major consumer" customers have a strong influence on the distribution network. Remote reading and reckoning of their consumption is thus needed to carry out network diagnostics.