Calibration of pH and Oxygen Sensors Applied to Aquaponic System
Dwi Novianto(a*), Setiyo Prajoko(a), Ika Setiyowati(a)
Universitas Tidar
Jl. Kapten S Parman No. 39 Magelang 56116, Jawa Tengah, Indonesia
*nopi_jte[at]untidar.ac.id
Abstract
Abstract - Majority of agriculture in Indonesia still relies on rainwater for irrigation. In dry season, there are many agricultural lands become unproductive. It decrease farmers income. To solve this problem, Aquaponic Planting System was offered but the system is complicated. It needs adequate oxygen and suitable pH to ensure nitrification process to occur. In nitrification process bacteria convert NH3 to NO3- and NO2. Therefore, a system which controls oxygen and pH levels are needed. For pH calibration, curveting method was used to get accurate measurement. For oxygen calibration, saturated dissolved oxygen water was used. It was obtained by using Potentiometric method. Finally, A Simple Moving Average was used to get stable readings.
Keywords: Calibration; pH, Oxygen; Sensor; Aquaponic
Topic: Electrical Engineering