wtw inoLab 740, Operating Manual

Page: 179 / 274

Conductivity
179
10.1.4 Setting the temperature compensation
The calculation of the temperature compensation is based
on the preset reference temperature,
Tref 20 or Tref 25 (see
chapter 10.2 D
ETERMINING
/
SETTING UP THE CELL CONSTANT
).
You can select the following temperature compensations for
the temperature functions:
l Nonlinear temperature compensation "nLF"
according to EN 27 888
l Linear temperature compensation "lin" with the
adjustable coefficient of 0.001 to 3.000 %
/
K
l
No temperature compensation "off"
Note
Select the following temperature compensations from the
table according to the respective test sample:
Application notes
Test sample Temperature
compensation Display
indicator
Natural water
(ground water,
surface water,
drinking water) nLF
EN 27 888 n
Ultrapure water nLF
EN 27 888 n
Other aqueous
solutions Linear temperature
compensation
Select 0.001 ... 3.000 %/K q
Salinity
(seawater) Automatically nLF
according to IOT
k
,
n