(1)Fundamental: According to the different pressures of the samples, the booster pump outputs high pressure for the calibration of the samples. (2)Test pressure: 0~30MPa (3)Control voltage accuracy: +2% of the upper limit of the test pressure value, -1% of the lower limit (4)Test medium: water (5)Pressure control method: computer control (6)Operation method: Computer operation (7)Number of samples: 1 way to control test pressure and test time (8)Structure and composition: Circulation system, pressure control system, workpiece mounting device, manual control