13
GENERAL OPERA
TIONS
6.2. CHEMICAL FORMULA & UNIT CONVERSION
Chemical formula and unit conversion factors are pre-programmed into the instrument
and are method specific. In order to view the displayed result in the desired chemical
formula for the total hardness method enter menu by pressing
and use the
functional keys to select
Chemical Form
. Press
Select
to change the displayed chemical
formula. Use the functional keys to highlight the desired chemical formula and press
Select
. The selected formula will be saved when the instrument is powered off.
6.3. GLP
Press the
key to enter the menu. Use the functional keys to select
GLP
and
press
Select
. Good Laboratory Practice (GLP) shows the date and time of the last user
calibration (if available) or factory calibration. To erase the last user calibration and to
clear the CAL Check press
Clear
and follow the prompts. Press
Yes
to erase and return
to the factory calibration data or
No
to exit the clear procedure.
6.4. LOGGING DATA & LOG RECALL
The instrument features a data autolog function to help users keep track of all
measurements. Every time a measurement is made the data is automatically saved.
The data log can hold 50 individual measurements. When the data log is full (50 data
points) the meter will rewrite the oldest data point.
Viewing and deleting the data is possible using the
Log Recall
menu.
Press the
key to enter the menu. Use the functional keys to select
Log Recall
and press
Select
.