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ENGLISH
C a lib r a t ion
Press for 5 seconds the CAL/OK bottun. The Calibration menu appears on the screen. You can look down the procedure of
the calibration for pH, please note that if calibration is for the redox measure there will be only one point calibration with the buffer
solution 475 mV. After calibration on the display will appear a life persentage of the probe, down 25% there will be a calibration
error, this means that the probe has to be replaced. PLEASE NOTE: Standard buffer solution for the pH measure are pH 7 and
pH 9, there will be an calibration error if a buffer solution 4 pH is used.
1)
INSERT PROBE IN BUFFER PH 7
2)
MOVE IT
3)
LET IT INSIDE AND DON’T TOUCH IT
PUSH CAL/OK for 5 seconds
Push ESC to exit from
calibration menu
CALIBRATING PH 7
7.20 PH (-90s)
1) WASH THE PROBE
2) INSERT PROBE IN BUFFER PH 9
3) MOVE IT
4) LET IT INSIDE AND DON’T TOUCH IT
QUALITY:
100%
7.07 pH
push OK
Push OK to confirm
QUALITY:
50%
7.10 pH
push OK
CALIBRATING ERROR
8.00 pH
push OK
Push OK to confirm
each step
CALIBRATING PH 9
9.20 PH (-90s)