RANCANG BANGUN SISTEM KENDALI KUALITAS AIR HIDROPONIK BERBASIS PLC
DOI:
https://doi.org/10.32497/orbith.v21i2.6693Keywords:
Automatic control system, hydroponics, nutrient content, pH, water temperatureAbstract
Sistem tanam hidroponik adalah sistem tanam menggunakan media air. Hasil kualitas panen tanaman hidroponik sangat dipengaruhi oleh kualitas airnya. Kualitas air ini perlu dijaga untuk mengoptimalkan pertumbuhan dan perkembangan tanaman. Penelitian ini bertujuan merancang sistem kendali otomatis untuk mengatur kandungan nutrisi, pH, dan suhu air pada media tanam hidroponik. Metode penelitian ini adalah eksperimen, yaitu merancang sistem kendali otomatis pada media tanam hidroponik dan menguji keandalan sistemnya. Sistem kendali yang digunakan pada penelitian ini adalah Arduino dan PLC Modicon TM221CE16T. Sistem kendali tersebut akan membaca kandungan nutrisi, pH, dan suhu air dari sensor TDS, sensor SEN0161, sensor DS18B20. Ketiga sensor tersebut diuji akurasinya melalui pengamatan dan perbandingan. Hasil penelitian ini menunjukkan bahwa bahwa sensor pH mampu beroperasi secara optimal dengan rentang selisih pengukuran sebesar 5,71%, sensor TDS memiliki rentang selisih pengukuran sebesar 9,1%, dan sensor DS18B20 memiliki rentang selisih pengukuran sebesar 1,88%. Sistem pendingin mampu mencapai set point suhu pada rata-rata waktu 40 menit di hari pertama, dan 53 menit di hari kedua. Sistem ini cukup andal untuk dimanfaatkan sebagai sistem otomatis untuk media tanam hidroponik.
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