11
GENERAL OPERA
TIONS
-
“OUT OF SPECIFICATION“
and the
Calibration
key is available: The measured
value is near the expected value. To update the user calibration press
Calibrate
.
Press
Accept
to confirm or
Cancel
to return to the previous screen.
-
“OUT OF SPECIFICATION“:
A user calibration is not allowed, the measured value is
outside of the tolerance window. Check the certified value, expiration date and clean
the outside of the cuvette. Repeat the CAL Check procedure. If this error continues
contact your nearest Hanna Customer Service Center.
6.2. CHEMICAL FORMULA/UNIT CONVERSION
Chemical formula/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 enter menu by pressing
and use the
keys to select
Chemical
Form
. Press
Select
to change the displayed chemical form. Use the
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
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.