Calibration (Ph Only); 1-Point Calibration (Calibration Mode: Auto) - Optex SE-pH-D Instruction Manual

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Calibration (pH only)

In pH measurement using the glass electrode method, reliable data can be
obtained only when the pH at the sensor location, the performance of the
electrode, and the accuracy of the calibration solution (standard solution) are
combined.
There are two types of pH calibration methods: automatic calibration and
manual calibration.
For details on selecting the calibration mode, refer to "Calibration mode
selection" P.16.
To calibrate SC-U1, press
Caution
Pressing

1-point calibration (Calibration mode: Auto)

Perform calibration with the pH standard solution set in step 4 of "Calibration
standard selection" P.18.
・ The 1-point calibration is for pH measurement. It does not affect
ORP measurement.
Caution
・ In 1-point calibration, span errors can be minimized by using
a calibration solution (standard solution) that is close to the
expected pH value of the measurement water.
Clean the sensor body and electrode surface.
1
Prepare the calibration solution (standard solution) of the selected
2
pH for the 1st calibration solution (standard solution) and immerse
the sensor.
Allow the sensor to settle to the temperature of the calibration
3
solution (standard solution) for about 5 minutes with little change
in temperature, then check that there are no bubbles on the
electrode surface.
Press
4
The sensor selection display is displayed.
.
automatically retains the measurement value.
.
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