Hanna Instruments HI 98280 - Manual (Page 24)

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Power save (min)
The power save mode allows to save the battery
life. After the set time is elapsed, the meter will:
1. automatically switch off, if in normal measure-
ment mode. Press on/off to switch on again.
2. enter a sleeping mode, if the continuous log-
ging mode is selected with a logging interval
of at least 1 minute. The “Power save mode“
message and the <Wake up> softkey appear
on the LCD; logging actions are not stopped.
Press <Wake up> to reactivate the display.
Available options are: No (disabled), 5, 10, 15, 20, 30 or 60 minutes. Press
<Modify> to select the desired time interval.
Log interval
Set the logging interval time from 1 second to 3 hours.
Reference temperature
For conductivity readings, a reference tempera-
ture for the displayed value has to be set. Avail-
able options are 20°C and 25°C. Press the
<Modify> softkey to select the desired option.
Temperature coefficient
The coefficient for temperature compensation
can be set from 0.00 (no temperature compen-
sation) to 6.00%/°C. Press <Modify> and then
use the keyboard to insert the desired value. Use
the left arrow softkey to move the cursor. To con-
firm the value press <OK>.
TDS factor
The TDS conversion factor can be set from 0.00
to 1.00.
A typical TDS factor for strong ionic solutions is
0.5, while for weak ionic solutions (e.g. fertiliz-
ers) is 0.7.
To set this parameter, press <Modify>, insert
the value and press <OK> to confirm.