DIGITAL HIGH PRESSURE CONTROLLER
The Controllers are designed to maintain confining pressure at the set value with the help of servo valve based on PID closed loop feedback principle. Sensing back is from a sensitive pressure transducer. Pressure is maintained with in the range of +2 % irrespective of any deformation that takes place during testing of the specimen. A series of relays are provided for automatic actuation of the main pumping unit depending upon the volume change in the specimen. This unit can be operated by the same hydraulic power pack.