BEFORE CALIBRATION, A ZERO READING AT THE UUC AND THE GAS PRESSURE STANDARD WHILE THE PRESSURE SYSTEM IS OPENED TO THE ATMOSPHERE AFTER EXERCISE SHALL BE OBSERVED. IF NOT, ZERO SET IS NEEDED.
- NUMBER OF THE PRESSURE CALIBRATION POINTS OF THE UUC CAN BE DETERMINED ACCORDING TO THE REQUIREMENT IN THE DKD R 6–1 : CALIBRATION OF PRESSURE GAUGES, WHICH DERCRIBED IN TABLE 1.
- AFTER APPLYING THE INPUT PRESSURE AT EVERY MEASUREMENT POINT, WAITING
TIME OF 30 SECONDS MINIMUM IS NEEDED BEFORE TAKING A READING.