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acetone or a soap solution.
After electrode treatment, a new calibration should be performed. If the electrode slope is still not
good, the electrode might need to be replaced.
5.4
Self-diagnosis
When meter is on, press and hold button-
Read
and button-
Cal
simultaneously until the meter
displays the full screen. Each icon blinks one after the other.
This way you may check whether all icons are correctly shown. The next step is to check that the
keys are functioning correctly. This requires user interaction.
When
b
blinks, five icons are displayed.
Press the five keys in any order. Each time you press a key an icon disappears from the
screen, continue to press the other keys until all the icons have disappeared.
When the self-diagnosis has been completed successfully,
PAS
appears. If self-diagnosis fails,
error message
Err 1
appears.
Note:
You have to finish pressing all five keys within
2 minutes
, otherwise
Err 1
appears and you
will have to repeat the procedure.
5.5
Recover factory settings
When the meter is off, press and hold button-
Read
& button-
Cal
& button-
Exit
together for 3
seconds, the screen displays
and blinks,
means “Reset”. Then we have 2 choice:
Press button-
Read
to reset factory settings (MTC, slope and offset, etc.), display
then restart the meter.
Or press button-
Exit
to quit the setting, display
then turn off the meter.
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