Operational Guide
36
Procedure
Basic mode operation permits up to three-point buffer calibration.
For accurate measurements, at least a two-point calibration is recommended.
However, a single point calibration can also be used.
The calibration buffers can be selected from the calibration buffer list that
includes the standard buffers, pH 4.01, 6.86, 7.01, 9.18 and 10.01.
Three-Point Calibration
Submerse the pH electrode approximately 3 cm (1¼”) into a buffer solution
and stir gently. Press CAL. The “CAL” tag will appear and the “7.01” buffer will
be displayed on the 3rd LCD line. If necessary, press the ARROW keys to select
a different buffer value.
The “ ” along with “STIR” tag will be displayed and
“WAIT” will blink on the LCD until the reading is
stable.
When the reading is stable and close to the selected
buffer, the “CFM” tag will blink. Press CFM to confirm
calibration.
The calibrated value will be displayed on the 1st LCD
line and the second expected buffer value on the 3rd
LCD line.
After the first calibration point is confirmed, rinse
and submerse the pH electrode approximately 3 cm
(1¼”) into the second buffer solution and stir gently.
If necessary, press the ARROW keys to select a different buffer value.
pH
Calibration
Summary of Contents for Edge
Page 1: ...Instruction Manual Multiparameter Benchtop Meter ...
Page 92: ...Warranty 92 Notes ...
Page 93: ...Warranty 93 Notes ...
Page 94: ...Warranty 94 Notes ...
Page 95: ...Warranty 95 Notes ...