Lovibond CheckitDirect Mode D'emploi page 16

Calibration Mode
GB
Store Date
RESULT
Time Cal
Zero
Mode
Test
On
Off
SEL
CAL
SEL
cAL
Mode
SEL
CAL
On
Off
16
Factory calibration reset
Resetting the user calibration to the original factory calibration will
reset all methods and ranges.
A user calibrated method is indicated by an arrow while the test result
is displayed.
To reset the calibration press both the [MODE] and [ZERO/TEST] key
and hold.
Switch the unit on using the [ON/OFF] key.
Release the [MODE] and [ZERO/TEST] keys after approx. 1 second.
The following messages will appear in turn on the display:
The factory setting is active.
(SEL stands for Select)
or:
Calibration has been set by the user.
(If the user calibration is to be retained, switch the unit off using the
[ON/OFF] key).
Calibration is reset to the factory setting by pressing the [MODE] key.
The following messages will appear in turn on the display:
Switch the unit off using the [ON/OFF] key.
CheckitDirect COD_3b 05/2011