22
3. CAL 2 Immerse the electrode(s) in the second buffer solution and allow the instrument to
stabilise. When no pH change of less than 0.005pH is detected over a five second period the
endpoint symbol will be displayed.
The symbol display will show:
where 2/3 is the number of calibration points selected.
Value should show the manually temperature corrected value of the buffer used.
Press the STO or CAL key.
The display will then show the next part of the calibration sequence if a 2 and/or 3 point calibration
has been selected. If a 2 point calibration only is required the instrument will display CAL OK, the
Eo value and the slope efficiency and then return to the main measuring screen. The current
calibration information, including the Eo value can be found on the Status screens.
Rinse the electrode(s) in deionised water.
3. CAL 3 Immerse the electrode(s) in the second buffer solution and allow the instrument to
stabilise. When no pH change of less than 0.005pH is detected over a five second period the
endpoint symbol will be displayed.
The symbol display will show:
where 3/3 is the number of calibration points selected.
Value should show the manually temperature corrected value of the buffer used.
Press the STO or CAL key.
The instrument will display CAL OK, the Eo value and the slope efficiency.
The instrument will return to the main measuring screen. The current calibration information,
including the Eo value can be found on the Status screens.
16
Содержание 3520
Страница 1: ...Instruction Manual 352 050 REV B 01 17 pH mV Temperature Meter Model 3520...
Страница 2: ......