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EMS Smart Water Meter owns 3 tamper proof functions,
including O Days, H Days, and U Days.
 

-O Days: Static Days, the number of days that no flow is detected.
-H Days: Magnetic Interference Days, the number of days detecting magnetic interference.
-U Days: Reverse Days, the number of days that reverse flow is detected.

To precisely detect leakge and maintain water balenace,
EMS Smart Water Meter can record the water consumption of
3 specific durations at night, including L1, L2, and L3.
 

-L1: The default setting is 03:30~03:35, parameters are configurable
for pipeline leakage detection.
-L2: The default setting is 03:00~04:00, parameters are configurable
for supply network/ DMA management.
-L3: The default setting is 01:00~05:00, parameters are configurable
for maintaining water balance.

To maintain the stable operation and performance of flow meters,
EMS Smart Water Meter is equipped with three smart monitoring functions:

-N Days: Operation Days, the number of days that the water meter has been operating.
-B Days: Battery Power Shortage Days, the number of days that the battery is in low power.
-Overload Times: The number of times that the instant rate value is higher than 
Qmax(overload flow rate).