A: CALIBRATION PROCEDURE IMPORTANT: Do not attempt to recalibrate this scale and excessive aircurrents.2. When the scale is turned off, press the < I > button to turn on the scale until 0.00 is displayed. Press and hold the < M > button until the display shows "CAL".3. Release the < M > button and press the < M >button again until "100.0" flashes on the display. Place the required 100g weight onto the center of the platform. 4. After the required weight is placed on the platform, the display will show PASS followed by 100.0g.5. If the calibration was not successful, please repeat this procedure again until the calibration procedure has been completed.