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.

Features

  • Fits into a standard deep double gang electrical socket back box
  • 230VAC 50/60Hz operation
  • Audible warning device with “Mute” push button to silence the alarm
  • Flashing Red / Green Alarm lamp that changes to a steady Red when the alarm is muted
  • Green Power ON lamp
  • Volt free contact for onward alarm signalling to a BMS
  • Water shutoff valve control to stop the leak when an alarm is raised
  • Alarms latched until Mute operated to give indication of transient water leaks
  • Any double blanking plate can be used allowing the unit to match the surrounding décor

Specification

  • Housing type – Electrical double gang blank plate
  • Mounting – Double gang deep back box
  • Size – 149mm x 88mm x 22mm deep
  • Colour – White as standard
  • Input power – 50 Hz single phase 230VAC +/- 10%
  • Burden – < 150mW
  • Power termination – L, E & N terminal block mounted to back of the PCB
  • Water valve termination – L, E & N terminal block mounted to back of the PCB
  • BMS termination – Terminal block mounted to back of the PCB
  • Meter 1 output pulses = 1:1 size ó”, .”, 1”, 1 .”& 1 ó – Terminal block mounted to back of the PCB
  • Meter 2 output pulses = 1:1 size ó”, .”, 1”, 1 .”& 1 ó – Terminal block mounted to back of the PCB
  • Available Water Valve sizes – ó”, .”, 1”, 1 .”& 1 ó
  • Water valve type and voltage – 230VAC powered open, slam shut.
  • Minimum / Maximum valve water pressure – ó”, .”, 1”= 0.1 bar– 20 bar , 1 .” & 1 ó” = 16 bar

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