MARKETS
EL Positioner
Kinetrol's EL 4-20mA electropneumatic positioner uses a unique low power proportional servo valve to control the position of a quarter-turn actuator. It provides fast, smooth and precise control from a digital circuit and proportional servo valve. Simple calibration allows for quick and easy field set up. Find out more in the PDF.
The microprocessor in the loop-powered 4-20mA position circuit reads the signal via one channel of a 12-bit A-D converter, reads the position voltage from the feedback potentiometer via the second channel of the A-D converter, and compares the two. If it detects a position which is different from that required by the signal, it changes the output to the servo valve, in order to drive the actuator in the direction required to reach the correct position. As the actuator moves, the feedback potentiometer voltage changes and the microprocessor continually calculates the adjustments required for the servo valve in order to guide the actuator accurately into position.
The microprocessor is programmed with a sophisticated but compact algorithm which allows this critical dynamic valve adjustment to be made correctly. This in turn gives optimal results with any actuator/load combination - slow or fast, low or high friction, low or high inertia. All can be optimised by tuning the PGAIN and DAMP parameters via the positioner circuit push buttons.
The microprocessor is programmed with a sophisticated but compact algorithm which allows this critical dynamic valve adjustment to be made correctly. This in turn gives optimal results with any actuator/load combination - slow or fast, low or high friction, low or high inertia. All can be optimised by tuning the PGAIN and DAMP parameters via the positioner circuit push buttons.
ADDITIONAL INFO
The EL positioner can be directly mounted on standard Kinetrol actuator models 05 to 15, both double acting and spring return, giving an assembly with no external piping, wiring or mechanical connections and the best backlash free control. Mount kits are available for models 16,18, 21, 30 and 60 actuators.
Alternatively, discrete versions mount on any actuator via VDI/VDE 3845 NAMUR drive, or Kinetrol male square, with mounting bracket.
Special adaptations for linear cylinders are alsoavailable - consult Kinetrol for details.
The EL Positioner ATEX approval includes the fitting of a special version of the popular.
Clear Cone high visibility monitor.
Alternatively, discrete versions mount on any actuator via VDI/VDE 3845 NAMUR drive, or Kinetrol male square, with mounting bracket.
Special adaptations for linear cylinders are alsoavailable - consult Kinetrol for details.
The EL Positioner ATEX approval includes the fitting of a special version of the popular.
Clear Cone high visibility monitor.
SIMILAR PRODUCTS
