Ziehl-Abegg counter with the Harmonics under control display

Photo: Mariusz Młynarczyk / CloudAir.tech

A staff member stands behind the glossy blue Ziehl-Abegg counter in front of a display titled "Harmonics under control" with the German subline "Oberschwingungsverzerrungen unter Kontrolle". A fan unit with an ECblue motor and electronic components are shown on the panel, with blue glass walls all around.