Block Micro Proportional Driver by Canfield Connector

Manufacturer: Canfield Connector
A  compact electronic proportional control circuit built into a potted enclosure. The circuit controls proportional solenoids and operators. Functions include minimum and maximum current limiting, control signals from 0-5 V or 0-20 mA with a step function at 0.1 volts or 0.4 mA included for minimum current. Also included is a 0.10-20 seconds linear ramp up/ramp down adjustment, sine wave dithering with adjustable amplitude/frequency and output current proportional to input command signal.  Adjustments are made on the top surface of the unit. The unit can control any proportional solenoid valve operating within the values specified below, using high frequency pulse width modulation with sine wave dithering
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