Hanna Instruments HI 9828 Instruction Manual page 24

Insert the time with the keyboard and then press OK.
Auto off
The meter shut off automatically if no keys are
pressed for the set time. This feature can be dis-
abled or enabled; by pressing the MODIFY soft
key it is possible to select the desired option: NO,
5, 10, 15, 20, 30 or 60 minutes.
Log interval
Set the logging interval between 1 second and 3 hours.
Reference temperature
For Conductivity readings it is necessary to set
the reference temperature for the displayed value.
The available options are 20 °C and 25 °C. To
set the value press the MODIFY soft key.
Temperature coefficient
This factor can be set from 0.00 %/°C (no tem-
perature compensation) to 6.00% /°C. To set
this value press MODIFY and then insert the
desired value with the keyboard. The left arrow
soft key allows to shift the cursor. To confirm the
value press OK.
TDS factor
The conversion factor can be set from 0.00 to
1.00. Usually for strong ionic solutions the set
value is 0.5 and for weak ionic solutions, as nu-
tritive solutions, is 0.7.
To set this factor press MODIFY, insert the value and then press OK.
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