1.Water Leakage Detection Principle

The precise positioning leakage detection system is composed of a sensor cable for detecting liquid leakage and an embedded controller with positioning display alarm. When a leak occurs, the controller detects the change of the electronic signal of the induction cable, and after processing by the microprocessor, it displays the precise location of the leak, and at the same time starts the alarm.

The inductive cable consists of four different types of wires implanted in a special polymer. The two coloured wires are low resistance surface insulated wires; the two black wires are processed from a non-metallic conductive polymer, whose resistance per unit length has been precisely processed and is of a constant value, and which is highly corrosion- and abrasion-resistant.

2.The Main Advantages of Leakage Detection System

(1) Reasonable structure, high reliability, no adjustable parts, easy to operate, never ignore any alarm, nor false alarm;

(2) No exposed metal structure, special polymer structure makes the cable corrosion-resistant, high strength and reliable quality;

(3) Simple and easy-to-understand monitoring panel, clear and unambiguous indication of the system status, self-calibration, modular design, expansion of the ability to expand the configuration, easy to install, maintain and replace;

(4) Rapid detection, real-time response, so that the leakage is reduced to the minimum level of danger;

(5) High positioning accuracy, the error is not greater than one thousandth;

(6) Wide monitoring range, single controller detection distance up to 100 m;

(7) Advanced products, each part of the induction cable can continuously sense the presence of liquid, unlike the old point induction leak detection products; can be accurately located and can detect rope breakage, unlike ordinary induction cable.

(8) Good adaptability and compatibility, with a variety of signal interfaces, not only relay output, and RS-232/485 communication interface, convenient to incorporate into the centralized monitoring system;

(9) When the leakage occurs, the relay output of the controller can control the valve to close and cut off the source of liquid to avoid accidents;

(10) An embedded microprocessor-based alarm location controller displays the actual layout of the sensing cable on the LCD, and when a leak is detected, a water droplet flashes and an alarm is raised at the actual location of the sensing cable, making it easy to troubleshoot according to the diagram;

3. Application Examples

Large precision air-conditioners are usually installed in the server room, and air-conditioner humidifiers, water supply pipes, etc. may lead to leakage. Coupled with the laying of anti-static movable floor, the leakage under the floor is more difficult to detect. The floor is generally arranged under a variety of cables, sockets, etc., once the liquid leakage of large areas may lead to unpredictable and serious consequences.

Leak detection system can provide a variety of interfaces, convenient access to the centralized monitoring system or network management system in the server room. The controllers all provide RS485 communication interfaces and also provide network communication interface connection.

A location alarm system is recommended for medium-sized server rooms or those with multiple air conditioners and multiple water sources. This system not only quickly detects the occurrence of a leak, but also accurately reports the location of the leak, making it very easy to locate the water source and the leak.

In case of machine rooms with large area, large machine rooms composed of several scattered small machine rooms, or water sources are scattered, the monitoring network can be constituted by using inductive cables, which can directly display the alignment diagram of the leaking cables on the floor plan of the machine room and accurately locate the location of the leaking cables on the floor plan, which is convenient for troubleshooting, and at the same time, it realizes the centralized monitoring, alarming and processing.