User`s guide

102 | Dexcom G4 Continuous Glucose Monitoring System

9.2.2 STATUS AREA SYMBOLS DURING CALIBRATION

PROMPTS

1. Clear the prompt from the screen by pressing the SELECT button.

2. Check the status area at the top of the screen. You

will decide what to do based on the symbol shown

in the status area:

a. If the startup calibration symbol is displayed:

• Take 2 more blood glucose values and enter

them into your receiver

b. If the additional startup calibration symbol is

displayed:

• Take 1 more blood glucose value and enter it into your receiver.

c. If the calibration needed symbol is displayed:

• Take 1 more blood glucose value and enter it into your receiver.

Prompt in status area

9.3 CALIBRATION ERROR TROUBLESHOOTING

This screen means you recently entered a calibration

blood glucose value and the sensor is having trouble

calibrating. If you clear this screen by pressing the

SELECT button this symbol will be displayed in

the status area.

If you see this screen, wait 15 minutes and then enter

1 more calibration blood glucose value. Wait 15 more

minutes. If this error screen still appears enter 1 more

blood glucose value. Wait another 15 minutes. If this

error screen still appears, the sensor needs to be

replaced.

This screen means you recently entered a calibration

blood glucose value and the sensor is having trouble

calibrating. If you clear this screen by pressing the

SELECT button, this symbol will be displayed

in the status area.

Wait 15 minute

calibration error screen

Wait 1 hour calibration

error screen