Inhoudsopgave
Advertenties
Beschikbare talen
Beschikbare talen
Measurement:
1. Select [S/cm] 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. The display shows the three standards in memory (1413 µS/cm, 12.88 mS/cm,
111.8 mS/cm). Select the proper values or enter manually special values and
press CAL. The unused standards should be switched off.
3. Select the temperature to which all future measurements will be referred to
(REF=25°C) and press CAL.
4. Select whether or not automatic temperature compensation (ATC) should be
applied and press CAL.
5. 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 30°C. When no Pt1000 is used, do not forget
to compensate manually first! Select [CALIBRATE], press CAL and follow the
instructions on the screen until the calibration is finished.
6. Rinse the electrode several times with the sample, immerse it in that solution
and read the display.
7. Rinse the electrode always after use and store it in distilled water (add some
detergent to keep the spongy platinum surface in perfect condition).
•
When starting a titration, press ê to lock the actual range and avoid cross-
over errors due to differences in the measuring frequency. Press MODE to
return to the normal measuring mode.
Capacitive compensation:
1. Capacitive compensation increases accuracy in the very low conductiv-
ity ranges (<10 µS/cm). Select whether or not this compensation should be
applied. Verify if the attached electrode is completely dry and press CAL.
Select [COMP.ON] or [COMP.OFF] and press CAL. Follow the instructions on the
screen.
1. Select [Ω.cm] 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. Proceed as for conductivity.
1. Select [SAL] 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. Proceed as for conductivity.
1. Select [TDS] 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. Proceed as for conductivity.
C931 • C932 • C933
Conductivity measurement
Resistivity measurement
Salinity measurement
TDS measurement
4
Advertenties
Inhoudsopgave
