User Guide

15
TO VIEW pH CALIBRATION DATA
Press the CAL DATA key and the meter will
display the last calibration data, in the fol-
lowing sequence:
- CAL indicator with month, day and year
Press the CAL DATA key again and the
meter will display the last calibration time as:
- CAL indicator with hour and minutes.
Press the CAL DATA key again, the display
will show the offset calibration factor as:
- CAL indicator with pH offset value
- pH offset calibration buffer value (BUF1)
Note: The offset pH value should be between
±0.50pH.
For values higher than +0.50 pH or
lower than -0.50 pH the electrode is no
longer reliable and should be replaced.
CAL DATA
CAL
DATE
CAL DATA
CAL
CAL DATA
CAL
1
BUF
pH
pH