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Use the validation procedure to ensure that the instrument is properly calibrated.
Warning:
Do not validate the instrument with any standard solutions other than the Hanna Instruments
CAL Check
™ Standards, otherwise erroneous results will be obtained.
Note: The validation is performed only for the selected parameter. For full validation of the
instrument, the following procedure must be performed for each parameter.
• Turn the meter on by pressing
ON/OFF
.
• When the beeper sounds briefly and the LCD displays dashes, the meter is ready.
• Place the
CAL Check
™ Standard Cuvette A into the cuvette holder and ensure that the notch
on the cap is positioned securely into the groove.
• Press
ZERO/CFM
and the lamp, cuvette and detector icons will appear on the display, depending
on the measurement phase.
VALID
ATION PROCEDURE