Start-Up Calibration - Dexcom SEVEN PLUS User Manual

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4.2

START-UP CALIBRATION

Two (2) hours after you start the Sensor (see Chapter 3, Section
3.8, "Beginning a Sensor Session") the Receiver will tell you
that you need to calibrate the Sensor. The Receiver will show
the screen shown to the right. If your Alerts are set to the factory
default settings, the Receiver will also vibrate to tell you it is ready
for calibration.
1. You can set your Receiver to beep and vibrate instead when
this screen appears (see Chapter 2, Section 2.3, Setting your Alerts).
2. When you see this screen, press the
3. Take 2 fingersticks with your meter and enter these meter readings. You can use the
OpenChoice Feature or the Auto Upload method to calibrate.
4. Your blood glucose readings must be between 40 mg/dL and 400 mg/dL for calibration.The
SEVEN PLUS cannot use fingerstick readings outside of this range for calibration.
HELPFUL HINTS:
• If your readings are less than 40 mg/dL or greater than 400 mg/dL you should determine if you
should treat yourself and then calibrate when it is convenient for you.
• Always check that the Receiver and blood glucose meter date and time
are the same.
• If you choose to silence the Double Blood Drop Prompt and calibrate later,
the Trend Graph will show a Blood Drop in the Status Box (upper right
corner). This means that fingerstick readings are still needed for calibration
(see inset image).
• Once you clear the Double Blood Drop Prompt, it will reappear every 15 minutes until you
successfully calibrate.
• Always make sure the Antenna Symbol is visible in the lower right corner before you calibrate.
62 | SEVEN PLUS Continuous Glucose Monitoring System
button to clear the display.
C
Double Blood Drop Prompt