Adjust the pressure of splay gun maximum of 10kg/cm² . Normal of speed 6kg/cm²,and minimum pressure of splay gun of 0 kg/cm². The calibrated Digital Pressure Calibrator and Pressure Module Pneumatic should be used for measurement. Instrument was calibrated in vertical position by comparison with Digital Pressure Calibrator according to NFI Method W 814 Based on DKD-R 6-1 Guideline Calibration of Pressure Gauge.