Ivanenko, I.A. Gulbekyan, G.G. Ivanov, G.N. Kalagin, I.V. Semin, V.A. JACoW Publishing Geneva, Switzerland 978-3-95450-205-9 10.18429/JACoW-Cyclotrons2019-MOP019 English 70-72 MOP019 cyclotron operation experiment ECR MMI Contribution to a conference proceedings 2020 2020-06 https://doi.org/10.18429/JACoW-Cyclotrons2019-MOP019 http://jacow.org/cyclotrons2019/papers/mop019.pdf The DC280 cyclotron is the new accelerator of FLNR Super Heavy Elements Factory. It was commissioned in the beginning of 2019. DC280 is intended for production of high intensity, up to 10 pmkA, beams of heavy ions with mass to charge ratio A/Z= 4 - 7. The wide range of accelerated ions from helium to uranium and smooth variation of extracted beam energy in the range W= 4 - 8 MeV/n are provided by varying of level of main magnetic field from 0.64 T till 1.32 T. The DC280 magnetic field was formed in a good conformity with results of computer modeling. In spite of commissioning of cyclotron still is in progress, the first experiments gave the intensity 1.35 pmkA of 84Kr¹⁴⁺ and 10 pmkA of 12C²⁺. At the present work the results of calculations, magnetic field measurements and first experiments are presented.