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3.
REF. TEMP.
– If the Temperature Coefficient (TC) is not zero
then the model 6308CT will use the value here to calculate and
display the compensated conductivity or TDS. The display will
be the value as if the temperature is the Reference Temperature.
The normal reference temperature is between 15 to 25°C but you
can actually select between 10 to 29°C in this option.
4.
TEMP. COEFF.
– This will be used by conductivity or TDS if you
want your display to be compensated. Setting this option to
0.00% will disable compensation. You can select between 0.00%
to 4.99%.
5.
TDS F
– TDS Factor, this value is multiplied with the
conductivity to get the TDS value. The user can direct adjust this
value from 0.300 to 0.999. The user must experimentally
determine this factor. Even if this factor is determined any
change in the ionic substances in the sample will affect the TDS
reading. Unless the ionic substances in the sample remain
constant, the TDS can’t be determined accurately. The default
value of 0.5 is only useful for a coarse estimate of TDS.
6.
C@25°C
- If the user is calibrating the Cell Constant the user
must enter the conductivity value of the standard solution at
25°C.
Before calibration remember to do the following:
1.
Use properly stored standard solutions and a clean calibration
container.
2.
Rinse the probe with de-ionized or distilled water (wipe dry)
before using in standard solutions.
3.
After immersing into the solution let the reading stabilize for
about 1 minute and shake the probe lightly to remove any air
bubbles.
4.
If possible and to minimize errors perform the calibration as
close as possible to the selected reference temperature.
