Abstract
Quality of water can be determined by measuring water resistance values. The resistance parameter is used as a reference to determine water quality based on physical properties where the minimum value for the clean water category is 333.33 Ω. Therefore we need a measuring device to check the value of water resistance. A voltage divider is a simple circuit that can be used to read water resistance values. In this research, a water resistance measuring instrument has been made with a simple method involving a voltage divider circuit with 1 sensor and 2 resistors installed in series, each resistor has a value of 10 kΩ. The sensor output voltage is in the form of an analog signal converted by a 10-bit ADC by an ATMega16 microcontroller. The DC output voltage of the ADC is entered into the voltage divider formula to obtain the water-resistance value from the sensor probe. With the comparative method of reading the tools between the tools made and the standard tools, a calibration using a simple linear regression method is used with the equation model 2984.783216 + (-0.00187724X). An error of 0.79% was obtained after the device was calibrated. The results of clean water testing for comparison in Perum PKT 2939.35764 Ω and Perum HOP 2940.8132 Ω.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
