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● Performing conductivity calibration
The factory-certified cell constant is indicated on the label on the electrical conductivity
cell. Cell constant may change depending on the usage condition. In such case, the
conductivity cell can be calibrate automatically or manually.
You can select calibration method. For how to set the mode, refer to "Changing the
calibration method" (page 73).
•Automatic calibration
1. Clean the conductivity cell with pure water (or
deionized water) and wipe it with filter paper
or tissue paper.
Do not touch the black electrode part.
Refer to the instruction manual of the conductivity
cell for how to clean the conductivity cell.
2. Immerse the conductivity cell in the standard
solution.
Make sure the hole at the upper part of the cell is
immersed.
3. Press the
mode.
Stability judgment starts and the COND icon
blinks. When the measured value stabilizes, the
COND icon changes from the blinking state to
the lit state.
4. Press the
key or the
The 1st point calibration ends and the calibration history icon corresponding to the
calibration range lights, indicating that 1st point calibration is complete.
The display returns to the measurement screen.
key or
key
For multiple point calibration, repeat the steps 1. to 4.
key to enter the calibration
key.
key
Conductivity measurement
Stabilized
57
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