Xylem HandyLab 680 - Manual (Page 80)

Operation HandyLab 680
80 ba77041e01 03/2014
4.10.3 Temperature compensation
The calculation of the temperature compensation is based on the pre-
set reference temperature, 20 °C or 25 °C. It appears on the display as
Tr20 or Tr25.
You can select one of the following temperature compensation meth-
ods:
 Nonlinear temperature compensation (nLF) according to EN 27
888
 Linear temperature compensation (Lin) with adjustable coeffi-
cients of 0.000 ... 10.000 %
/
K
 No temperature compensation (off)
Note
The reference temperature and temperature compensation are set in
the menu for the parameter, conductivity (see section 4.10.4).
Application tips Select the following temperature compensations given in the table
according to the respective test sample:
Test sample Temperature compensation Display
indicator
Natural water
(ground water, surface
water, drinking water) nLF
according to EN 27 888 nLF
Ultrapure water nLF
according to EN 27 888 nLF
Other aqueous solu-
tions lin Set linear
temperature coefficient
0.001 ... 10.000 %/K lin
Salinity (seawater) Automatic nLF according to
IOT (International Oceanogra-
phic Tables Sal, nLF