Two hours after starting a new sensor, do your first sensor calibration. Your pump sends a “CALIBRATE NOW” alert. Your first sensor glucose reading appears about 10 to 15 minutes after you calibrate.
Six hours after your first calibration, do your second sensor calibration. A “CALIBRATE NOW” alert appears, and your pump stops calculating your sensor glucose (SG) values. When you receive a “CALIBRATE NOW” alert, it takes about 15 minutes after you calibrate to receive SG values again
After you do your 2nd calibration, you need to calibrate at least every 12 hours. If you do not calibrate for more than 12 hours, a “CALIBRATE NOW” alert appears. It takes about 15 minutes after you calibrate to receive SG values again.
Follow these handy guidelines for best calibration results:
- Spread out your calibrations throughout the day. To optimise sensor accuracy, calibrate 3 to 4 times a day.
- Although you can calibrate any time during any rate of change, calibrating with 2 up or down arrows may temporarily decrease accuracy until the next calibration.
- Enter your blood glucose (BG) meter reading into the pump immediately after testing your BG.
- Your BG meter reading is only valid for 12 minutes; do not wait to enter it later.
- Always use clean, dry fingers when you test your blood glucose levels.
- Use only your fingertips when obtaining blood samples for calibration.
- If your BG meter readings are significantly different than your sensor glucose readings, you need to wash your hands and calibrate again.