31
QUCIK CALIBRA
TION
Note: Do not attempt to dry wipe the D.O. sensor as damage to the membrane may occur.
• Screw the empty calibration beaker on the probe body. The beaker should not be dry.
• Press
Accept
to close the displayed message.
• When the measurement is stable, “Ready” appears. Press
Confirm
to store the calibration data and the “Storing”
message will appear.
• Press
OK
to return to “Calibration” menu.
Note: To quit the quick calibration procedure, press ESC at any time. After every calibration the
quick calibration window will show a check mark in the box next to the calibrated parameter.
To optimize the pH measurement follow the general guidelines mentioned in the
Chapter 7
introduction.
From the “Calibration” menu select “Single param. calibration”
and then “pH calibration”.
The display shows two options: “Calibrate pH” and “Restore
factory calib.”. If a new pH sensor has been installed use
“Restore factory calib.” before performing a user calibration as
some warning messages are based on changes from previous calibrations.
If “Restore factory calib.” is selected, all user calibration data will be deleted and the default
calibration is restored. A user calibration should follow immediately.
If “Calibrate pH” is selected, the user can perform a new calibration using up to 3 buffers
(pH 4.01, 6.86, 7.01, 9.18, 10.01 or one custom buffer). When a 3‑point calibration is performed,
all old data are overwritten, while with a single or 2‑point calibration the meter will also use
information from the previous calibration, if exists.
Preparation
Pour small quantities of the selected buffer solutions into clean beakers. To minimize
cross‑contamination, use two beakers for each buffer solution: the first one for rinsing the sensor and
the second one for calibration.
pH CALIBRA
TION
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