Operation Manual

8 Troubleshooting your

system

Error and other messages

The OneTouchUltra Plus Flex™ Meter displays messages

when there are problems with the test strip, with the

meter or when your glucose levels are above 33.3mmol/L

or below 1.1mmol/L. Improper use may cause an

inaccurate result without producing an error message.

NOTE: If the meter is on but does not operate (locks-up),

contact Customer Service. Contact OneTouch® Customer

Care on 0800121200 (UK) or 1800535 676 (Ireland).

What it means

You may have a very

low blood glucose level

(severe hypoglycemia),

below 1.1mmol/L.

NOTE: When your glucose result is below 1.1mmol/L, both

the LO and the Range Indicator Arrow will flash on the

meter screen.

What to do

This may require immediate treatment. Although this

message could be due to a test error, it is safer to treat

first and then do another test. Always treat according to

your healthcare professional’s recommendations.

Yellow= 5mm Red=7mm margin

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