Digital amplifier for Monosolenoid proportional valves in the EDC-1 open ring is a digital amplifier for the control of proportional valves in the open ring, with a graft assembly on the type DIN electric connection and DIN or M12 connection side electrical connection. It provides a current proportional to the reference signal and independent to the variations in temperature and load impedance, with a resolution of 1% on a scale bottom 2600 mA. Power supply to the Solenoid using the PWM stadium allows you to reduce the hysteresis of the valve by improving the precision of the regulation. The EDC-1 range offers several maximum current calibrations and switching frequency (PWM), according to the type of valve to be controlled. The adjustment of the parameters takes place through buttons and display, or via portable PC with EDCPC software and connection to the RS232 socket located inside the box. The EDCPC configuration kit can be ordered separately.