INE-
PHSJ-5 pH Meter
13
1 .When user calibrate electrode with his own standard buffer solution
( Non-standard buffer solution), he must know the pH nominal value of this
non-standard buffer solution under the range of calibrating temperature.
2. In each measurement, suggest to re-calibrating the electrode before hand. As
soon as you start to calibrate, the previous calibration data will be replaced.
Before calibration, please prepare 1~5 different kinds of standard buffer solution ( it can be normal
standard buffer solution, and can also be user‟s own standard buffer solution), leave them under
normal temperature for a while, then set the standard buffer solution according to the
CALIBRATION FUNCTION(8). Electrode calibrating will be effective after setting.
Clean the pH measuring electrode, reference electrode, temperature sensor and put them into the
measured standard buffer solution altogether. When the reading is stable, press “ENTER” key. The
meter shows “STD Result”. After a while, the meter will ask you “End Standardization?”(refer to
diagram 12); if user need to calibrate some other standard buffer solution, please press
“CONTINUE” button, then repeat above procedure till calibration finished.
Diagram 12
During the calibration, user can finished the calibration at any time by pressing “
End STD
” button.
After calibrating the fifth standard buffer solution, the meter will finish the calibrating automatically.
For the standard buffer solution with the range of pH value overlapped, such as the buffer solution of
6.865 pH & 7.000pH, suggest to calibrate as follows:
When user calibrates 6.865pH standard buffer solution, set standard buffer solution group to
6.865pH only, then arrange calibration. When finished, reset standard buffer solution group to
7.000pH only, then calibrate.
Adopt manual distinguishing mode to calibrate. Every time, when user calibrate standard buffer
solution, input nominal pH value under present temperature in correspond to present standard
buffer solution by manual.
As to normal standard buffer solution, user can use automatic distinguishing function with the
standard buffer solution group set before hand. No need to change distinguishing mode (if not
able to distinguish, the meter will point out: calibration wrong to ask you to exchange electrode
