horiba LAQUAact-EC110, Инструкция по эксплуатации

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Conductivity measurement
42
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Performing measurement
Immerse the conductivity cell in a sample to perform measurement. Auto stability mode
and auto hold mode are available to judge the stability of the measurement value.
For details of settings, refer to "Setting the auto stability and auto hold function" (page
58).
1. Press the key to change to the
measurement parameter to measure.
2. 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.
3. Immerse the conductivity cell in the sample
solution.
Make sure the hole at the upper part of the cell is
immersed.
Stability judgment starts and the measurement
item icon blinks. When the measured value
stabilizes, the measurement item icon changes
from the blinking state to the lit state, and the
display is fixed to the stabilized measured value.
Note
・
The criteria of stability judgment in the auto stability mode and auto hold mode are as
follows.
Conductivity: Display value change for 10 seconds is less than 3 digit and temperature
change is less than 2.0°C.
Salinity: Display value change for 10 seconds is less than 1.0 PPT (0.1%) and
temperature change is less than 2.0°C.
TDS: Display value change for 10 seconds is less than 30 mg/L and
temperature change is less than 2.0°C.
Resistivity: Display value change for 10 seconds is less than 3 digit and temperature
change is less than 2.0°C.
・
If the measured value is above the display range, "Or" (over) appears. For details on the
action to take, refer to "The measured value is outside the display range" (page 78).
Stabilized