Consort C561, Руководство пользователя

Страница: 6 / 24

3
C561 • C562 C561 • C562
4
TDS/Salinity measurement
1. Select [TDS] or [SAL] by pressing MODE . The display will immediately show
the measured value according to the previous calibration. Should you want to
recalibrate, press CAL . Proceed as for conductivity.
Conductivity 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 one of the 3 standards in memory (0.01, 0.1, 1 M KCl). Select
the proper standard and press CAL . Also select the temperature to which all
future measurements will be referred to.
3. After rinsing the cell several times with the 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.
4. Rinse the cell several times with the sample, immerse it in that solution and
read the display.
5. Rinse the cell always after use and store it in distilled water (add some deter-
gent to keep the spongy platinum surface in perfect condition).
Oxygen measurement
1.
Select [O
2
] 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 the air pressure correction and the salinity correction.
Select the proper values and press
CAL
. Leave salinity correction to zero unless
you are going to measure in heavily salted solutions such as e.g. sea-water (35
g/l). Select [CALIBRATE], press
CAL
and follow the instructions on the screen
until the calibration is finished.
3.
The electrode exposed to the air reaches an equilibrium corresponding to the
partial pressure of oxygen and thus to saturation in water at the given temper-
ature. The instrument shows the measured saturation, current, temperature,
and will calibrate automatically when readings are stable.
4.
After rinsing the electrodes with distilled water, immerse them in the samples
and read the display. Stirring the solution during the measurements promotes
the homogeneity and is obligatory ! The advection rate must be at least 10
cm/s.
5. Rinse the electrode always after use and store it in distilled water.
Temperature measurement
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. Select
[CALIBRATE] and press
CAL
. Calibrate to the proper value and press
CAL
again
or press
MODE
to reset the factory settings.
(C562)
%O
2
measurement
1.
Select [%O
2
] 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 mg/l.
(C562)