Instructions and user manual DOS-ECO
NOT041ENV01_FP1
19
INSERT PROBE IN BUFFER 7pH, MOVE, LET INSIDE DON’T TOUCH IT
press OK
CALIBRATING pH 7
7.25pH
*
(-90s)
QUALITY
100%
4.0Ph press OK
INSERT PROBE IN BUFFER 4pH, MOVE, LET INSIDE DON’T TOUCH IT
press OK
CAUTION :
before soaking the sensor in the
pH4 solution, rinse well using clean water
CALIBRATING pH 4
4.25pH
*
(-90s)
*
: 7.25 is an example of instantaneous
measurement before calibration (values are
commonly between 6.5 and 7.5)
↓6.
9pH
SET CAL
↓6.
9pH
720mV
↑
720mV
↑
SET CAL
Tip
PRESS THE
ESC
KEY AT ANY TIME TO
EXIT THE CALIBRATION PROCEDURE
After pressing OK, the unit
continues operating normally
*
: 4.25 is an example of instantaneous
measurement before calibration (values are
commonly between 3.5 and 4.5)
STEP 10 : Calibrating the pH probe
Remove the probe from its soaking water in
STEP 2
and remove the excess water.