An E4 displays on the meter, indicating not enough blood was drawn into the test strip for measurement or blood was applied after the test had started. You should discard the test strip and repeat the blood sugar test.
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No, check the use by date on the test strip container. Do not use test strips past the use by date.
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Yes. If the post-meal reminder marker is selected, the meter will beep 2 hours after the pre-meal test to remind you to perform a post-meal test. You can change the pre-meal test reminder to 1 hour after the pre-meal test.
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The Accu-Chek Performa meter uses Accu-Chek Performa test strips.
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The test strip may be damaged, not properly inserted, or was previously used.
Remove and reinsert the test strip or replace it if damaged or previously used.
This error could appear if the cap on the test strip container was not closed tightly.
The test strips may have been damaged due to improper storage or handling.
Blood glucose may be lower than the measuring range of the system.
Your meter measures blood glucose within a defined range (0.6–33.3 mmol/L or 10-600 mg/dL).
The display may indicate that your blood glucose is lower than the measuring range of the system (0.6 mmol/L or 10 mg/dL).
Follow the relevant instructions given by your healthcare professional for possible hypoglycemia and immediately repeat the test.
If this does not match how you feel, contact customer support.
The meter is connected to a PC and a blood glucose or control test cannot be performed.
EITHER remove the USB cable and perform a blood glucose or control test OR remove the test strip and start a data transfer.
Blood glucose may be higher than the measuring range of the system.
Your meter measures blood glucose within a defined range (0.6–33.3 mmol/L or 10-600 mg/dL).
The display may indicate that your blood glucose is higher than the measuring range of the system (33.3 mmol/L or 600 mg/dL).
Follow the relevant instructions given by your healthcare professional for possible hypoglycemia and immediately repeat the test.
If this does not match how you feel, contact customer support.
The meter was unable to pair with a mobile device.
Retry the pairing.
The batteries are almost out of power.
Change the batteries now. If the symbol reappears after the batteries have been replaced, remove the batteries again, press and hold either meter button for at least 2 seconds, then reinsert the batteries.
