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Move away from others wearing sensors: To reduce potential interference,
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stay more than 6 meters from other sensors until pairing is complete. For pairing,
you may have to go to a different area to get far enough away from other people
wearing sensors.
Check display device:
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Sensor can be paired with only one receiver.
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Sensor can be paired with only one smartphone.
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System can be paired with only one smartwatch.
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Keep app open: Keep the phone and watch apps open. The apps can run in the
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background, but don't force quit them. See your phone or smartwatch product
instructions for more information.
Issue
Signal Loss alert: Your display device has temporarily stopped getting sensor
readings from your sensor over Bluetooth.
If your display device doesn't get the sensor reading twice in a row, the Signal Loss
banner displays.
After about 20 minutes of not getting sensor readings, the display device sounds or
vibrates too. You can change Signal Loss alert settings in your phone app at Profile >
Alerts > Signal Loss, and in your receiver at Menu > Settings > Alerts > Signal
Loss.
You won't get alerts or sensor readings until fixed. Use your BG meter for treatment
decisions. When your sensor readings resume, up to 24 hours of missed sensor
readings can fill in on the trend graph.
11 • Troubleshooting |
Dexcom G7 User Guide
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Need help?
Do you have a question about the G7 and is the answer not in the manual?
Questions and answers
changed sensor, it paired but get a message sensor failed start new sensor
The Dexcom G7 sensor may show a failure message after pairing due to issues such as using an outdated sensor version that is not compatible with certain devices, signal loss, or sensor adhesion problems. If pairing with a Tandem hybrid closed-loop system, an older Dexcom T7 version may cause an error message like "sensor not started 43t." Checking the sensor's LBL number and ensuring compatibility can help resolve the issue. If the problem persists, contacting Dexcom for a replacement may be necessary.
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How long after eating does readings reach the sensor?
The Dexcom G7 sensor measures glucose in interstitial fluid, not blood, and glucose levels in interstitial fluid can lag behind blood glucose levels, especially when glucose is changing rapidly. This means that after eating, the sensor reading may take some time to reflect actual blood glucose changes. The exact time can vary, but differences are more noticeable when glucose levels are rising or falling quickly.
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Wait time between showing & inserting new G7 sensor
The Dexcom G7 sensor has a 12-hour grace period at the end of its session, allowing time to replace the sensor. After inserting a new sensor, there is a sensor warm-up period before readings and alerts begin.
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Power off is where
The power off button on the Dexcom G7 receiver is the right button with a circle on it, also known as the Select button.
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How to change zone settings in G7 on Android phone app?