Conductive [Conductivity] - ProMinent DULCOMETER diaLog DACb Assembly And Operating Instructions Manual

11.1.10 Conductive
Temperature compensation and refer‐
ence temperature
Tab. 18: Temperature compensation and reference temperature
Variable Description
Specific conduc‐ off
tivity / Electrical
lin
resistance
nLF
TDS ---
SAL ---
[conductivity]
Set the temperature compensation and reference temperature for
correct display of the conductive conductivity and resistance.
Non-adjustable values are specified by the controller for the display
[TDS] and [SAL] .
of
Type of temperature
compensation
none
linear, 0 ... 9.99%/K
non-linear for natural
water (DIN EN 27888)
extended nLF function 35 °C ... 120 °C
linear
non-linear according
to PSS-78
The conductive conductivity measured at the fluid temperature is
converted to the reference temperature
NOTICE!
The sensor must be dry
Do not allow the conductivity sensor to come into
contact with liquid. Only allow the conductivity
sensor to come into contact with liquid once the
conductivity sensor has been connected, config‐
ured and calibrated. The sensor parameters (zero
point) of a moist or wet conductivity sensor can no
longer be properly calibrated.
If the conductivity sensor has come into contact
with liquid prior to calibration, there is an option to
dry the conductivity sensor. A dry conductivity
sensor can be successfully recalibrated to the
sensor parameters.
Area
- 20 °C...150 °C
0 °C...35 °C
0 °C...40 °C
0 °C...35 °C
Setting measured variables
Reference tempera‐
ture
(°C)
15 °C ... 30 °C adjust‐
able
20 °C or 25 °C select‐
able
20 °C or 25 °C select‐
able
25 °C, fixed
15 °C, fixed according
to PSS-78
[TREF] .
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