Ph/Mv/Temperature Measurement - Consort C32 Serie Anleitung

pH/mV/temperature measurement

pH measurement
•
Select the desired mode (pH) by pressing . The display will immediately show the measured value
according to the previous calibration. Should you want to recalibrate, press CAL.
•
The instrument permits to choose between the buffers in memory (1.68, 2.00, 4.00, 4.01, 6.87, 7.00,
9.18, 9.21, 10.01, 12.00, 12.45 + up to 5 user tables). Select the proper values and press OK. The
unused buffers should be switched off.
•
Rinse the electrodes with distilled water and immerse them in the first buffer solution. Select
[CALIBRATE], press OK and follow the instructions on the screen until the calibration is finished.
•
After rinsing the electrodes with distilled water, immerse them in the samples and read the display.
•
Rinse the electrodes always with distilled water after use and store them in a 3...4 M KCl solution.
•
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.
Using pH electrodes with an abnormal zero point
1. Press CAL.
2. Select [Eo = x mV] and press OK.
3. Enter the zero point of the electrode and press OK.
4. Hold MODE pressed and press
mV measurement
Select the desired mode (mV) by pressing . The display will immediately show the measured value
1.
according to the previous calibration. Should you want to recalibrate, press CAL.
2. Immerse the electrodes in a standard solution of known potential. Select [CALIBRATE] and press OK.
Adjust to the proper value and press OK.
6. Select [RESET] and press OK to reset the calibration.
7. Hold MODE pressed and press ê to change the resolution from 1 to 0.1 mV.
Temperature measurement
1. Select the desired mode (°C) by pressing éê. Should you want to recalibrate, press CAL.
2. Immerse the Pt1000 in a solution of known temperature. Select [CALIBRATE] and press OK. Adjust to
the proper value and press OK.
•
Select [RESET] and press OK to reset the calibration.
•
Without Pt1000, press CAL, adjust the manual temperature compensation and proceed by pressing OK.

to change the resolution from 0.1 to 0.001 pH.
3