To calibrate a blood pressure monitor, take your blood pressure the device while relaxed or seated. Please write down the reading you see on the monitor since you will need it to complete the process. On the performance monitor, press the home button to open the main screen. Look for a moving arrow on the right and tap on it before pressing the settings icon.
Using the arrow down, select SBP Calibration followed by User Name. Put the cuff on the left arm, ensuring it is level with your heart, and press START. You will see a calibration screen, into which you should press anywhere. Enter the upper number of your initial blood pressure reading and press, OK. Go through the process once again for a second calibration.