horiba LAQUAact ES-71G, Инструкция по эксплуатации

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Conductivity measurement
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Performing conductivity calibration
A verified cell constant is printed on a label of the conductivity cell.
However, the actual cell constant may fluctuate depending on the usage circumstances
and it is desirable to calibrate the cell constant in that case.
The procedures of cell constant calibration are shown below.
1. Press the key to enter the calibration mode, and enter the conductivity value
of the standard solution at 25°C.
2. Wash 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.
3. Immerse the conductivity cell in the standard
solution.
Immerse it the standard solution up to the hole in
the lower part of the cell.
4. While the conductivity cell is immersed in the standard solution, then press the
key.
Stabilization judgment starts and the HOLD icon blinks. When the value is stabilized,
the HOLD icon changes from the blinking state to the lit state and calibration to the set
standard solution value is performed.
Calibration is complete. Cell constant is set automatically.
key
Stabilized
key