User's Manual

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1. When you see this screen, press the
SELECT
button to clear it.
a. The startup calibration symbol will stay at the top of the trend graph until you calibrate.
b. The system will re-alert you every 15 minutes until you enter the blood glucose values.
c. If you do not clear the prompt, the system will re-alert you every 5 minutes.
2. Take 2 separate blood glucose measurements with your meter, and enter the blood glucose values into
the receiver (see Chapter 7, Section 7.2, How to Calibrate).
7.4 12-HOUR CALIBRATION UPDATE
Calibrate your system at least every 12 hours after your first calibration (2-hour startup calibration) to make
sure your sensor glucose readings remain accurate and close to your blood glucose meter values. You can
enter blood glucose values earlier than 12 hours if you want. If you have not entered any blood glucose
values in the past 12 hours, the receiver will ask you to enter a blood glucose value to update its calibration.
WARNING
Calibrate at least once every 12 hours. Calibrating less often than every 12 hours
might cause sensor glucose readings to be inaccurate, and you might miss a low or
high blood glucose value.
The following steps show you how to enter this calibration.
1. When you see this screen, press the
SELECT
button to clear it.
a. The startup calibration needed symbol will stay at the top of the trend graph until you calibrate.
b. The system will re-alert every 15 minutes until you enter the blood glucose values.
2. Take 1 blood glucose measurement with your meter, and enter the blood glucose value into the receiver.
If this screen reappears soon, see Chapter 13, Section 13.2, Calibration Troubleshooting.
7.5 OTHER REASONS YOU MAY NEED TO CALIBRATE