RANCANG BANGUN SISTEM MONITORING SUHU DAN SALINITAS PADA AIR LAUT
Salinity is the level of saltiness or salt content dissolved in seawater. Temperature is the distribution of heat in the ocean caused by the movement of water and other factors. This study aims to make a measuring instrument for temperature and salinity and to determine the relationship between tension and salinity in seawater. This study used the method of meansuring electrical conductivity (DHL) to determine changes in a quantity. The temperature and salinity design consist of an Arduino Uno, a YL-38 module, and copper as an electrode, and a DS18B20 temperature sensor. From the research that has been done, the average error presentation value for salinity is 0,00732% and temperature 0,044%. Through this research, a salinity and the temperature instrument produced using electrodes made of copper and DS18B20 which operates at a voltage of 4,8 Volts. And obtained a linier graph between stress and salinity. And it is known that the relationship between voltage and salinity is directly proportional, the higher the salinity of seawater, the greater the output voltage.
Key words: Salinity, Temperature, Voltage