9.1.10 Conductive
[conductivity]
Temperature compensation and reference temperature
NOTICE!
The sensor must be dry
Do not allow the conductivity sensor to come into contact with liquid. Only allow the conduc‐
tivity sensor to come into contact with liquid once the conductivity sensor has been con‐
nected, configured and calibrated. The sensor parameters (zero point) of a moist or wet con‐
ductivity 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 recali‐
brated to the sensor parameters.
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 of
[TDS]
and
[SAL]
.
Tab. 11: Temperature compensation and reference temperature
Variable Description Type of temperature
compensation
Area Reference tempera‐
ture
(°C)
Specific conduc‐
tivity / Electrical
resistance
off none
lin linear, 0 … 9.99%/K - 20 °C…150 °C 15 °C … 30 °C
adjustable
nLF non-linear for nat‐
ural water (DIN EN
27888)
0 °C…35 °C 20 °C or 25 °C
selectable
extended nLF func‐
tion
35 °C … 120 °C 20 °C or 25 °C
selectable
TDS --- linear 0 °C…40 °C 25 °C, fixed
SAL --- non-linear according
to PSS-78
0 °C…35 °C 15 °C, fixed
according to
PSS-78
Configuring measured variables
77
To Next Page
Loading...
Need help?
General
