How-To Guide

Calibrate Description
After warm-up is
complete.
Do your first sensor calibration.
Your pump displays a Calibrate now alert within two hours after
starting a new sensor. Your first SG reading appears up to
five minutes after you calibrate.
Within six hours
after your first
calibration.
Do your second sensor calibration.
Six hours after you calibrate for the first time, a Calibrate now
alert appears, and your pump stops calculating your SG values. It
takes up to five minutes after you calibrate to receive SG values
again.
Within 12 hours
after your second
calibration and at
least every 12 hours
thereafter.
After you do your second calibration, you need to calibrate at
least every 12 hours. For better sensor performance, it is
recommended that you calibrate your sensor three or four times
each day.
If you do not calibrate for more than 12 hours, a Calibrate now
alert appears. It takes up to five minutes after you calibrate to
receive SG values again.
When the Calibrate
now alert appears.
You may also receive additional Calibrate now alerts to let you
know that another calibration is required to improve
performance. It takes up to five minutes after you calibrate to
receive SG values again.
Note: When a BG is entered for calibration, dashes appear in place of the
SG reading, and "Calibrating…" appears on the sensor graph.
Guidelines for calibrating
Follow these guidelines for best sensor calibration results:
• Calibrate three or four times spread out throughout the day to improve
accuracy. For details, see When to calibrate, on page 206.
• You can calibrate any time. However, calibrating with two or three trend
arrows may temporarily decrease accuracy until the next calibration. For an
example of trend arrows on the Home screen, see Home screen with CGM in
Manual Mode, on page 173.
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Setting up CGM
Setting up CGM 207