User guide

Table Of Contents
Action: If the alert resulted from two Cal Errors in a row, replace the sensor. If the alert happened
without two Cal Errors, use the transmitter's tester to make sure your transmitter is working properly. If
you received this alert during initialization, you may be able to resolve this alert without replacing your
sensor. Call the 24 Hour HelpLine or your local representative for further assistance.
SENSOR END
Reason: The sensor has reached the end of its life.
Action: Replace your sensor. The sensor has a maximum life of 72 hours (3 days). The 72-hour life span of
the sensor begins when the monitor receives the first METER BG NOW alert.
CAL ERROR
Reason: An error occurred when entering a new meter BG measurement to calibrate the system. Some
possible causes are:
An incorrect blood glucose measurement was entered from the meter into the monitor.
The entered blood glucose measurement was not current.
Your blood glucose is rising or falling rapidly.
The sensor needs more time to stabilize after being inserted.
The sensor is no longer reading the sensor glucose correctly.
Action: If you receive a Cal Error, wait until your BG is stable to enter a new meter BG measurement for
calibration. If you receive a Cal Error on your second calibration, a CHANGE SENSOR alert will occur. Call
our 24 Hour HelpLine or your local representative if you have questions.
METER BG NOW
Reason: A meter BG measurement is needed immediately to calibrate the system so that you can continue
receiving sensor glucose measurements.
Action: Take and enter a meter blood glucose measurement.
Troubleshooting and alarms/alerts86