AIR & Hydraulic Systems
has released the new J+J digital positioning system, which features a modulating function whereby the movement of the actuator is controlled by either a 4-20mA or a 0-10VDC control signal.
Any change in the control input signal results in a corresponding and proportional change in the position of the actuator, which is achieved with the use of an internal digital positioning system.
The digital positioning system can be supplied as a retro-fit kit containing all the parts required to convert a standard on-off actuator to a modulating unit. An internal microprocessor on the digital positioning system circuit board monitors the analogue input and output signals digitally and compares them to the physical position.
When the actuator is used in manual mode and put back into automatic mode with the actuator out of its normal operating quadrant, the digital positioning system will auto-adjust itself back into the correct quadrant.