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4. Make sure the restrictor is in calibration mode.
5. Invert the instrument so the sensors are facing up.
6. Ensure the sensor face and inside of restrictor / calibration cell are thoroughly cleaned and free of debris. Rinse the
sensor face and inside of the restrictor with DI or tap water.
7. Take the calibration solution and pour 10-20 mL (1/2” above the sensor face) on top of the sensors to perform the
first rinse.