7.5.3
Three-Point Calibration
17. Use the remaining buffer (either the pH4 or pH10) for a three-point calibration.
18. Rinse the pH/ORP sample cell three times with the remaining buffer. Fill the sample cell with the
remaining buffer.
19. Allow 5–10 seconds for the pH measurement to stabilize and the padlock (
) to appear.
20. Press
Calib
(
or
) to start a three-point calibration.
21. If the calibration succeeds, a checkmark (
), a ”pH4 Calibration success!” or a ”pH10 Calibration
success!” message, and a ”Completed!” message will appear (Figure 46). Otherwise, a warning mes-
sage is displayed.
22. After a successful three-point calibration, press
Exit
(
,
, or
) to return to measurement
mode.
Figure 44.
Figure 45.
Figure 46.
SP-710 User Manual
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