Conductivity/Tds/Salinity/Resistivity Measurement - Consort C3 10-Serie Anleitung

Conductivity measurement
1. Select the desired mode (S/cm) by pressing é ê . The display will immediately
show the measured value according to the previous calibration. Should you
want to recalibrate, press CAL.
2. The instrument permits to choose between the standards in memory (1413
µS/cm, 12.88 mS/cm, 111.8 mS/cm + up to 3 user tables). Select the proper
values and press OK. The unused standards should be switched off.
3. After rinsing the electrode several times with the first standard solution,
immerse it in that standard. The solution temperature is not so critical but
should lie between 0°C and 40°C. When no Pt1000 is used, do not forget to
compensate manually first! Select [CALIBRATE], press OK and follow the
instructions on the screen until the calibration is finished.
4. Rinse the electrode several times with the sample, immerse it in that solution
and read the display.
5. Rinse the electrode always after use and store it in distilled water (add some
detergent to keep the spongy platinum surface in perfect condition).
• A blinking decimal point warns you for unstable measurements. Wait to read the
display!
• Stirring the solution during the measurements promotes the homogeneity and is
obligatory!
• The instrument will refuse automatic calibration when the electrode is unstable.
Insufficient stirring or a worn electrode may be the cause.
• When starting a titration, hold MODE pressed and press ê to lock the actual range
and avoid cross-over errors due to differences in the measuring frequency. Hold
MODE pressed and press ê to return again to the normal measuring mode.
Temperature compensation
1. Press CAL.
2. Select [REF.] and press OK.
3. Select the temperature to which all future measurements will be referred to
(25°C or 20°C) (C305x: 20°C...40°C in 1°C steps) and press OK. Select the
value 0 to disable the temperature compensation and read absolute
conductivity measurement values.
Capacitive compensation
1. Capacitive compensation increases accuracy in the very low conductivity
ranges (<10 µS/cm). Select whether or not this compensation should be
applied. Verify if the attached electrode is completely dry and press CAL.
2. Select [CAP.COMP] and press OK.
3. Select [YES] or [NO] and press OK. Follow the instructions on the screen.
TDS measurement
1. Select the desired mode (mg/l)(TDS) by pressing é ê . The display will
immediately show the measured value.
Salinity measurement
1. Select the desired mode (SAL) by pressing é ê . The display will immediately
show the measured value.
Resistivity measurement
1. Select the desired mode (W.cm) by pressing é ê . The display will
immediately show the measured value.
• To browse between conductivity, resistivity, salinity or TDS, hold MODE pressed and
press é sequentially.
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Conductivity/TDS/Salinity/Resistivity measurement

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