Conductivity inoLab
®
Multi 9620 IDS
80 ba77173e04 12/2017
9 Conductivity
9.1 Measuring
9.1.1 Measuring the conductivity
Selecting the
displayed
measured parameter
You can switch between the following displays with <M>:
Conductivity [μS/cm] / [mS/cm]
Resistivity [Ω·cm] / [kΩ·cm] / [MΩ·cm]
Salinity Sal [ ]
Total dissolved solids TDS [mg/l] / [g/l]
The factor to calculate the total dissolved solids is set to 1.00 in the factory. You
can adjust this factor to meet your requirements in the range 0.40 ... 1.00. The
factor is set in the menu for the parameter TDS.
Stability control
(AutoRead)
& HOLD function
The stability control function (AutoRead) continually checks the stability of the
measurement signal. The stability has a considerable impact on the reproduc-
ibility of measured values.
The measured parameter flashes on the display
as soon as the measured value is outside the stability range
when the automatic Stability control is switched off.
The sensor connection and the USB-B (USB Device) interface are
galvanically insulated. This facilitates interference-free measure-
ments also in the following cases:
Measurement in grounded test samples
Measurement with several sensors connected to one
Multi 9620 IDS in one test sample
1. Connect the conductivity sensor to the meter.
The conductivity measuring window is displayed.
The measuring cell and cell constant for the connected IDS conductivity
sensor are automatically taken over.
2. If necessary, press <M> to select the measured parameter ϰ.
3. Immerse the conductivity sensor in the test sample.
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