User guide
Action: Recharge your transmitter as soon as possible. See the Charging the transmitter section in the Sensor
features chapter.
CHARGE TRANSMTR
Reason: The transmitter battery is depleted.
Action: Recharge your transmitter immediately. See the Charging the transmitter section in the Sensor
features chapter.
CHANGE SENSOR
Reason: You may receive this alert after you receive two Cal Errors in a row, without the Cal Errors, or when
initializing your sensor.
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 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 144 hours (6 days). The 144-hour life span of
the sensor begins when the pump 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 number was entered from the meter into the pump.
• 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.
Troubleshooting, alerts and alarms 181
Chapter 13