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ASCO™ Series 908 Electronic Proportional Control Unit
The ASCO Series 908 electronic control unit converts analog input control signals to the coil current of a proportional solenoid valve by means of pulse-width modulation.
The switch-off function occurs at less than 2% of the maximum control signal. The control unit is suitable for proportional valve applications in the automotive, tire manufacturing, chemical, food and beverage, medical and life science, and packaging industries.


  • Electronic circuit is integrated in a standard housing according to DIN EN 175301-803, Form A
  • Adjustable up/down ramp control
  • LED-Display is integrated in the connector
  • Output coil current independent of coil resistance (temperature) and supply voltage variations
  • Parameter setting via PC interface and programming adapter or, optionally, via the switches integrated in the connector