Margo Utomo, Suryono Suryono


Water has many benefits one of which is a good conductor of electricity, because the water contains ions that can conduct electricity, the amount of water's ability to conduct electricity known as electrical conductivity or electrical conductivity (EC). The electrical conductivity of the water is in practice often used as parameters of water quality. Therefore the need for a monitoring electrical conductivity of water so that the levels of electrical conductivity in a body of water. The method used for water monitoring system for electrical conductivity using Wireless Sensor System (WSS). By using WSS data monitoring can be done at a distance, direct or realtime network using Wi-Fi. To know the symptoms of the changes that occur in the water sensor uses electrical conductivity of water. Values that comes out of analog value which is then converted into digital values by microcontroller ATSAM3X8E with features Analog to Digital Converter (ADC), then the data is sent to a computer using serial communication. The data sent is stored in a database at the station Remote Terminal Unit (RTU). The data has been stored subsequently sent to the Terminal Station Control Unit (CTU) using Wi-Fi networks. Data sent to CTU station can be accessed by accessing the IP address in a web browser. The results of the characterization of the sensor to a standard measuring instrument obtained the following equation y = 58,666x - 42929. Furthermore, the equation to be incorporated into the program the microcontroller then do the calibration. The results of the calibration of linear correlation coefficient (R) and standard deviation (δ), a conductivity sensor has R = 0.999 and δ = 129.76 μS / cm. Of data sent and received data error does not occur, so it can be ascertained that the data transmission no data is wrong, less, or increases. 


Wireless Sensor System, a microcontroller, ADC, database, monitoring

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