
Time since last calibration What happens
• The system will not take glucose measurements again until you enter a
new Meter BG measurement.
To calibrate your system:
1 Check the sensor icon on the screen to make sure monitor and transmitter are communicating.
•
Not communicating. Do not enter your meter BG measurement for calibration. Check the
following:
• The sensor and transmitter are correctly connected.
• The sensor has been started.
• The monitor is not too far from the transmitter.
• The transmitter is charged.
• The correct transmitter ID has been entered.
•
Communicating. Go to the next step to calibrate your system.
If there is still no communication, see the Troubleshooting and alarms/alerts chapter for information
on how to restore communication between the monitor and the transmitter.
2 Take a meter BG measurement. Immediately enter the meter BG measurement into your monitor
by following the rest of the steps in this procedure.
3 Open the ENTER BG screen.
Main > Sensor > Enter Meter BG
The ENTER BG screen shows three dashes.
4 Enter the number from your meter. The number on the screen must match the measurement from
your meter, and values below 40 mg/dL (2.2 mmol/L) or above 400 mg/dL (22.2 mmol/L) cannot be
used for calibration.
5 Press ACT. The calibration has been successfully entered. It takes 10-15 minutes after entering your
meter blood glucose value for the measurement to be accepted, and for the system to show those
values.
If you enter an incorrect calibration value:
1 If you enter an incorrect calibration value, immediately re-enter the correct value (if two values are
entered within 15 minutes of one another, the system uses the most recently entered value).
Using your system 49
Chapter 6
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