Setting The Tds Factor - Xylem SI Analytics Lab 955 Operating Manual

Settings
Application tips
26
The reference temperature is set in the menu for the parameter
conductivity (see section 6.1 M
), page 24).
ITY
You can select one of the following temperature compensation methods:
• Nonlinear temperature compensation (nLF) according to EN 27 888
• Linear temperature compensation (lin) with adjustable coefficients of
0.000 ... 3.000 %/K
• No temperature compensation (---)
The temperature compensation is set in the calibration menu (see
section 6.1.3 S
25).
Select the following temperature compensations given in the table according to
the respective test sample:
Test sample
Natural water (ground water,
surface water, drinking
water)
Ultrapure water
Salinity (seawater)
6.1.4

Setting the TDS factor

The factor to calculate the total dissolved solids is set to 1.00 in the delivery
condition.
You can adjust this factor to meet your requirements in the range 0.40 ... 1.00.
1. Select the measured parameter TDS with <MODE>.
2. Set the TDS factor with <><>.
EASUREMENT SETTINGS
ELECTING THE TEMPERATURE COMPENSATION
Temperature compensa-
tion
nLF according to EN 27 888
nLF according to EN 27 888
Automatic nLF according to
IOT (International Oceano-
graphic Tables)
Lab 955
( -
CONDUCTIV
, page
Display
nLF
nLF
Sal, nLF
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