the are constantly are re-adjusted to adapt the device to changing conditions of the water system. The
four sub-areas result in different alarms because the user action on these alarms may be different.
All normal water outlets in a home limit the speed of water. Even parallel consumption of water will
not result in speed of water beyond a certain level. In case the system detects a very high speed
of water a possible root cause is a bursting pipe (Section A4). Depending on the measured speed
of water the Aqua-Scope will issue a Heavy Flow-Alarm after few seconds. Please note that an
interruption of the water supply or a manual shut-off of the water will result such this alarm type
too since the Aqua-Scope Water Monitor must assume that the water disappeared somewhere.
The „Usage“-scenario (section A3) is defined by speeds of water typically for normal water
consumption of toilets, appliances, or faucets. Two thresholds define the alarm condition:
Max time in seconds, factory-default is 900 s = 15 m
Max amount of water in liter, factory-default is 200 liters
Exceeding these thresholds will cause a Usage-Alarm.
Additional protection is provided by the external wired water contact sensor, connected to one of
the two sockets of the Aqua-Scope. This will recognize e.g. spillovers or other loss of water. A
Flood-Alarm is sent out in this case.
The most dangerous and most common type of leaks are caused by a chemical reaction in the
water pipe leading to small orifice, also called micro-leaks (section A1). Since these orifices are
very tiny in the beginning, they are usually not seen. However, these very tiny leaks indicate a
much larger problem later on. The device has a built-in process to detect these small leaks. It is
called Pipe-Check. It requires to shut off the water for about 3 minutes. The application controls
this process by shutting off the water automatically (or advise the user to manually shut off before
triggering the pipe check). The completion of the pipe check is indicated with an uplink status
command or in case of a problem a Pipe-Check Alarm. The alarm includes the estimated speed
of water in ml /min plus the estimated elevation of the leak relative to the elevation of the water
microphone.
The “Drip”-scenario (section A2) defines flow speeds between about 100 ml/m and 2000 ml/m.
This is still quite low, but a Pipe-Check would come too late here. Hence, this range is monitored
permanently and detected leaks or dripping faucets will cause a Drip-Alarm within minutes.
Additional Monitoring
The system is permanently monitoring the water to detect pattern indicating a jamming toilet flap.
In this case a Jamming-Alarm is issued.
If the water pressure is too high the pipes may be damaged in the home. The Aqua-Scope will
determine automatically the highest acceptable pressure and report an Overpressure-Alarm if
this threshold is exceeded.
The internal temperature sensor allows issuing a Frost-Alarm when a certain threshold for frost
danger is hit. The factory default value for this threshold is 4 °C.
LED-Signals
Red fast blinking: Alarm
Green/red blinking: connection to wireless network pending
3 times green blinking plus buzzer: Aqua-Scope connected to network successfully and is ready to
Users and Installation Manual: Aqua-Scope Water Monitor (AQSWIE01)
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