User`s guide
110 | Dexcom G4 Continuous Glucose Monitoring System
9
9.10 ALERTS ARE NOT WORKING
1. Make sure you have not disabled the sound and/or vibrations for the alerts.
Chapter 6, Section 6.1, Setting Your Alerts explains how to change these alert
options.
2. Check to be sure you have turned on and set the level for your advanced
alerts if you wish to receive these alerts (see Chapter 6, Section 6.2,
Advanced Alerts).
3. Remember the rst alert will vibrate only. Please see Chapter 12, Appendix
I, Receiver Alerts, Alarm and Prompts sequence tables for reference on how
the alerts, alarm and prompts work.
HELPFUL H INT:
• If your receiver gets wet or is dropped you need to make sure the
speakers and vibrate mode are still working. You can do this by using
the Try It option in the proles menu (see Chapter 6, Section 6.3.1, Alert
Prole Options).
• Your transmitter ID must be entered correctly into your receiver to receive
sensor glucose readings (see Chapter 2, Section 2.2, The Settings Menu).
Make sure you have removed your sensor and stopped your sensor session
before checking or changing your transmitter ID.
If you are still having trouble receiving system readings contact your local
distributor.
HELPFUL H INT:
• You can only set your Transmitter ID when you are not in a sensor
session. During a sensor session, “Transmitter ID” will not appear as an
option on the Settings menu.
The transmission range from the transmitter to the receiver is up
to 6 meters without obstruction. Wireless communication does not
work well under water so the range is much less if you are in a
pool, bathtub, water bed, etc.