Hanna Instruments HI 9828 - Manual (Page 23)

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Use the keyboard to insert the time and then press OK.
To choose AM or PM, press A or P on the keyboard after inserting the time.
Auto off
The meter shuts off automatically if no keys are
pressed for the set time. By pressing the MODIFY
softkey it is possible to select the desired option
for this feature: NO (disabled), 5, 10, 15, 20,
30 or 60 minutes.
Log interval
Set the logging time interval from 1 second to 3 hours.
Reference temperature
For conductivity readings, a reference tempera-
ture for the displayed value has to be set. The
available options are 20°C and 25°C. Press the
MODIFY softkey to select the desired option.
Temperature coefficient
The temperature coefficient can be set from
0.00%/°C (no temperature compensation) to
6.00%/°C. Press MODIFY and then use the
keyboard to insert the desired value. The left ar-
row softkey 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 fac-
tor is 0.5 and for weak ionic solutions, as nutri-
tive solutions, is 0.7.
To set this parameter, press MODIFY, insert the
value and then confirm by pressing OK.