Intelligent Liquid Leak Detector Controller

The Deeter Intelligent Leak Detector System comprises a leak detector controller in a DIN-rail mounting enclosure and a set of leak detector sensors in small, floor-mounting ABS enclosures. The controller can identify each sensor and provide information about the location of a leak whenever a leak is detected. The intelligent leak detector controller has an LCD and three push-button switches to enable the user to access option menus and select from a variety of programmable features. Power to the Controller can be from a mains supply (220-240VAC) or a low- voltage supply (10-24V), either AC or DC. The controller has a variety of process outputs including two SPDT relays to directly control mains powered pumps, valves or alarms, an open-collector transistor is also provided for connection to a programmable logic controller (PLC), building management system (BMS) or for indirectly driving further valves or pumps via an external relay and finally an RS485 serial communications port for remote monitoring. The relays and transistor output can be independently assigned to respond to any leak or to a leak within a group of sensors. Alternatively, they can be assigned to a fault condition. Intelligent Leak Sensors are housed in ABS enclosures rated to IP65 and have a pair of stainless steel sensing probes protruding through the underside. Sensors are linked in a daisy-chain configuration using 4-core cable which also provides power to the sensor. The maximum number of sensors in a system is 79 and the maximum cable length between sensors is approximately 200m. The intelligent leak detector can be used in conjunction with the deeternet® wireless gateway to provide the user with constant monitoring of all leaks in their system, this system can be set up so that every time a leak is found in the system, alerts can be set to provide notifications via email or SMS of the location of any leaks so that they can be dealt with as quickly as possible.