Important; Ph Measurement; Mv Measurement; Temperature Measurement - Consort C931 Anleitung

Important

pH measurement

mV measurement

Temperature measurement

3
• 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 unsta-
ble. Insufficient stirring or a worn electrode may be the cause.
1. Select [pH] by pressing MODE. The display will immediately show the measured
value according to the previous calibration. Should you want to recalibrate,
press CAL.
2. The display shows up to five of the 9 buffers in memory (1.68, 4.00, 4.01, 6.87,
7.00, 9.18, 9.21, 10.01, 12.45). Select the proper values or enter manually
special values and press CAL. The unused buffers should be switched off.
3. Rinse the electrodes with distilled water and immerse them in the first buffer
solution. Select [CALIBRATE], press CAL and follow the instructions on the
screen until the calibration is finished.
4. After rinsing the electrodes with distilled water, immerse them in the samples
and read the display.
5. Rinse the electrodes always with distilled water after use and store them in a
3...4 M KCl solution.
Using pH electrodes with an abnormal zero point:
1. Select [E0 = x mV] and press CAL.
2. Enter the zero point of the electrode and press CAL.
• Press ê to change the resolution from 0.1 to 0.001 pH.
1. Select [mV] by pressing MODE. The display will immediately show the meas-
ured value according to the previous calibration. Should you want to recali-
brate, press CAL.
2. Immerse the electrodes in a standard solution of known potential, adjust to
the proper value and press CAL.
• Press ê to change the resolution from 1 to 0.1 mV.
1. Select [°C] by pressing MODE. Without Pt1000, adjust the manual temperature
compensation and proceed by pressing MODE. Should you want to recalibrate,
press CAL.
2. Immerse the Pt1000 in a standard solution of known temperature. Calibrate to
the proper value and press CAL.
C931 • C932 • C933