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General Operations
10
4. Use the functional keys to enter the certificate value of the calibration standard found on the CAL Check
Standard Certificate.
5. Press
Next
to continue.
Note
: This value will be saved in the instrument for future validation.
6. Insert the
HI97100‑
ZERO CAL Check™ Cuvette A then press
Next
to continue.
“
Please wait...
“
message
will be displayed during the measurement.
7. Insert the CAL Check Cuvette B for the selected method (i.e.
HI97100‑420
for LR or
HI97100‑610
for MR,
HR, UHR), then press
Next
to continue.
“
Please wait...
“
message will be displayed during the measurement.
Note
:
HI97100-ZERO, HI97100-420, and HI97100-610 are in
cluded in the HI97106-11 CAL Check™
standards for COD photometer - cuvette kit. Please see Accessories for ordering codes.
8. When the CAL Check is complete, the display will show one of the following messages and the value
obtained during the measurement:
•
“PASSED“
: measured value is within the accuracy specification
•
“OUT OF SPECIFICATION“
: measured value is outside of the tolerance window
A.
Check the certified value, expiration date, and clean the outside of the cuvette.
B.
Repeat the CAL Check procedure.
C.
If this error continues, contact your nearest Hanna Instruments
®
customer service center.