The WPLD has been designed to detection water leaks in supply pipe lines from sizes 15mm to 38 mm diameter. The system operates by monitoring the output pulses of two water metres one fitted at either end of the pipe run and set up an alarm if the adjustable set points are exceeded.
Two user adjustable settings are provided, one to set the number of allowable missing litres of water, adjustable between 3 and 20L, the second to set the monitoring time period adjustable between 10 and 40 minutes. The settings allow a leak detection range for a continuous leak between 75ml (3L/40m =75mL) and two Litres (20L/10m =2L).
The WPLD also has a 230VAC output to a water shutoff valve to turn off the supply in the event of a leak being detected. A normally open volt free contact is also provided for onward signalling to a BMS or existing alarm system.
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