Calibrate the Accu-Chek SmartGuide sensor

The sensor requires calibration to provide you with the most accurate readings possible: 
  • An uncalibrated sensor will be in Trend Mode. You can see CGM values but should not use them for therapy decisions.
  • A calibrated sensor will be in Therapy Mode. You can use the values to make therapy decisions (e.g., to dose insulin).
The calibration routine consists of two steps:
  • The first calibration request will show up 12 hours after the insertion of the sensor.
  • A second request will appear 30 minutes to 3 hours after the initial calibration.
Image
A linear chart depicting the data collection from the warm up period until the second calibration time.
You should calibrate your sensor:
    • Whenever the mySugr app prompts you to do so.
    • At home or in a stable environment (avoid extreme sunlight or temperatures).
    • At a time when your blood glucose is stable (not shortly after a meal, insulin injection, or physical activity).

    If calibration is unsuccessful, wait 15-30 minutes before trying again. When you re-calibrate, use a new glucose value from your blood glucose meter.

Here’s how to calibrate the sensor

Step 1
The app will prompt you to calibrate 12 hours after applying the sensor. Tap the Calibrate Now button. Take a glucose reading with your glucose meter. When you enter it into the Calibrate screen, the reading must be within the 40 and 400 mg/dL (2.3 mmol/L and 22.1 mmol/L) range and not older than 3 minutes.
 

Step 2
Take a glucose reading with your glucose meter. When you enter it into the Calibrate screen, the reading must be within the 40 and 400 mg/dL (2.3 mmol/L and 22.1 mmol/L) range and not older than 3 minutes.
Step 3
Enter your blood sugar reading and confirm the safety notification. Tap Confirm. Make sure the value is correct because you cannot change it later. Tap Confirm to proceed, or Keep editing to return to the previous step.
If you confirm an incorrect value, system performance cannot be guaranteed. Discard the sensor, apply a new one, and repeat the previous steps.
Step 4
If calibration is successful, a confirmation screen will appear. If calibration is unsuccessful, wait at least 15 minutes before repeating the process using a new reading from your blood glucose meter.
Step 5
Calibrate the sensor whenever the app prompts you to do so.
You should enter the second calibration value 30 minutes to 3 hours after completing the first calibration test. Tap Calibrate and repeat steps 2 to 4. After these steps, your system will be in Therapy mode until the end of the sensor session.

 

Once the calibration process is completed, the Home screen will be displayed, and you can use the CGM values to make therapy-related decisions.
 

Get in touch

Chat with us

Online Sun-Fri from 8 a.m. to 7 p.m. Gulf Standard Time

Send us a message

We'll get back in under 72 hours.

Email us
Give us a call

Sun-Fri from 8am-7pm 
Holiday Hours
Our customer care team is fully operational even during public holidays from Sun- Fri from 8am-7pm.