The IFM method is applied to leakage control zones. For each zone the
consumption is continuously integrated over the latest 24-hour period and
compared with the figures representing the same period from the previous
weeks, which are calculated as average values over a number of weeks defined
by the user. In case a leak is detected, an alarm will be submitted to the
SCADA system.
Figure 1. The AQUIS IFM response plot displaying a flow response for two
different averaging periods and the actual threshold value.