I-JEF-300 yochungechunge lwe-electromagnetic flowmeter iqukethe inzwa nesiguquli.Isekelwe emthethweni ka-Faraday wokungeniswa kuka-electromagnetic, osetshenziselwa ukukala ukugeleza kwevolumu yoketshezi oluqhutshwayo olunomthamo omkhulu kuno-5μs/cm.Kuyimitha ye-inductive yokulinganisa ukugeleza kwevolumu ye-conductive medium.