| 摘要 |
<p>Irrigation control unit with electronic programme selection and timing means, provided with main valve means (17) and auxiliary valve means (31). The latter are actuated by an electromagnetic arrangement comprising an electric gearmotor (21, 22), a lever (24), a first magnet (28) and a second magnet (30). The lectronic programme selection arrangement (11) controls said auxiliary valve means (31). The solution according to the invention is particularly simple and reliable. <IMAGE></p> |
