12
GENERAL OPERA
TIONS
5. Insert the
HI97704B
CAL Check Cuvette B then press
Next
to continue. The
“
Please wait...
“
message will be displayed during the measurement.
6. When the CAL Check is complete the display will show one of the following
messages and the value obtained during the measurement:
•
“PASSED“
: The measured value is within the accuracy specification, no user
calibration is required.
•
“OUT OF SPECIFICATION“
and
Calibrate
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 Instruments Customer Service Center.
6.2. 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.
