International Journal of Research Available at https://edupediapublications.org/journals p-ISSN: 2348-6848 e-ISSN: 2348-795X Volume 03 Issue 12 August 2016 Available online: http://edupediapublications.org/journals/index.php/IJR/ Page | 1 Construction of Digital Water Level Indicator and Automatic Pump Controlling System Md.Sourove Akther Momin 1* , Pratik Roy 2 ,Mr.Md.Golam Kader 3 , Md.Sahid Hasan 4 , Samiul Islam 5 Department of Mechanical Engineering,Khulna University of Engineering & Technology, Khulna-9203, BANGLADESH. Corrosponding Author Email- Sur.sor269@gmail.com Abstract: In modern technology is largely depends on automation and control system. Automation and control system refers the use of various control systems for operating equipment such as machinery, processes in factories, boilers and heat treating ovens, switching on telephone networks, steering and stabilization of ships, aircraft, automobile and other applications with minimal or reduced human intervention. The greatest advantage of automation and control system is that it saves labor. A water level indicator system is a device that indicates the level of water in a tank or reservoir. It is widely used in industrial applications such as boilers in nuclear power plants and residential applications. The project is to design water level indicator with automatic water pump controlling system. water level sensor has been made for apprehended water level properly. Microcontroller is plighted to restrain the overall system accurately that reduces the control complexity. It takes input through the sensor unit that senses the water level. After taking input , output intends the pump’s action (on/off) with respect to current water status of the tank. A display unit indicates the status of pump and water level. The device also monitor the state of level of water whether it is stable, increasing or decreasing with what velocity. It also stores the total time of pump being kept ON. It also keep monitoring whether the pumping is working well or not. While Keeping the motor ON it detects whether the motor pump is working well or not every minutes. If the level is increasing or decreasing in each minutes then the indicator shows the motor pump is working well else after three minutes if the level remains stable then it shows there is a problem in motor. Thus it also monitor the working performance of the pump. . Keywords Automation; Control; Pump; Sensor; 1. Introduction An Water Level Indicator is a device by which the users can get the information of any water reservoir. Water level indicator system are quite useful to reduce the wastage of water from any reservoir, while filling such reservoir[2]. Availability of water resource in many region of the world is decreasing and becomes a dominant issue now a days. This problem is arising because of poor water allocation, inefficient use, and lack of adequate and integrated water management. Water is in general used for agriculture, industry, and domestic fields of consumption[4]. That is why it is becoming an important matter of concern for efficient use and water monitoring and water management system for home or office. Recently there are many systems have been developed to ensure the proper utilization of this resource with minimum wastage. Proper monitoring of water level and its management can be a task for government and residence perspective[3]. Scarcity of water is becoming a serious issue in major cities. It is becoming a common problem to almost every house owner, while his tank is getting empty he has to switch on the motor and when the tank is full switch off the motor. As life is getting more busy it is most often found that the tank overflows without notice. So it is needed to keep on observing water level of the tank to switch off the motor once it is switched on[5]. There are chance to burn the motor coils when there is absence of water in the tank. Hence these are the everyday problem that force to motivate to come up with an affordable, automatic water level indicator and water pump control system which does not need any attention once it is installed. Implementation of water controlling system makes vital significance in residential applications[7]. The self-acting level controller will switch on the pump while the level of water reaches below the defined level and will switch off the pump when the sump of water level is at above defined level[6].