Calibration and Measurement
7
Calibration and Measurement
pH Calibration
J
STD control and SLOPE control
STD control and SLOPE control are connected to the volume through the shaft and pin, as
following diagram.
Push the control with turning to connect the pin and the volume.
Soak the electrode in the standard solution.
Set the value of the LCD display to the value of the standard solution with STD/SLOPE
controls.
z
STD control
Adjust the value of the LCD display to the value of the pH7 standard solutioin affected by
the temperature. (example: pH6.86 25
°
C).
z
SLOPE control
Adjust the value of the LCD display to the value of the pH7 standard solutioin affected the
temperature. (example: pH4.01 25
°
C of pH9.18 25
°
C).
Calibrate other standard solution according to the explanation for that standard solution.
STD control
SLOPE control
Push with turning.
The volume is connected.
Pull to release connection.
Push and insert into the notch.
The control is connected to the volume.
Pull to release connection.
The control is ideled.