15
• If the temperature compensation is active, mea-
surements are compensated using the tempera-
ture coefficient (default value 1.90 %/°C).
To change the temperature coefficient, enter the
setup mode and select the “tc” item (see “Setup”
section for details).
• If the temperature reading is out of the -9.9 to
120.0°C interval and the ATC option is selected,
the temperature full scale value will be displayed,
together with the °C tag blinking. No tempera-
ture compensation will be performed.
• The reference temperature can be set from 15
to 30°C. When the reference temperature is
changed, the temperature coefficient must be
manually adjusted by the user.
For example, if
?
is the coefficient with refer-
ence temperature of 25°C, if changing the tem-
perature to 20°C, the new coefficient can be cal-
culated with the following formula:
?
=
?
/(1-
?
/20)
If
?
=1.90%/°C, then
?
=2.10%/°C.
•
Always set reference temperature to 25°C
when measuring TDS.
22
SETUP
Setup mode allows to view and modify the instrument
parameters.
To enter setup mode, press SETUP key from measure-
ment mode. The SETUP tag lights up. The primary LCD
will display the temperature coefficient (default value
1.90%/ºC), while the secondary LCD shows the code
of the current setup item.
Select the desired setup item using the arrow keys, then
press CFM to select and edit the setup item value, and
its current value starts blinking (if it is a changeable pa-
rameter).
