Hanna Instruments HI 96101 - Manual (Page 29)

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The reading should be within specifications as reported in the CAL CHECK TM Standard
Certificate. If the value is found out of the specifications, please check that the cuvettes are free
of fingerprints, oil or dirt and repeat validation. If results are still found out of specifications,
then recalibrate the instrument.
CALIBRATION PROCEDURE
Note: It is possible to interrupt calibration procedure at any time by pressing CAL CHECK or
ON/OFF keys.
Warning : Do not calibrate the instrument with standard solutions other than the HANNA CAL
CHECK TM Standards, otherwise erroneous results will be obtained.
When calibrating, only the selected range is affected.
• Turn the meter on by pressing ON/OFF. When
the beeper sounds briefly and the LCD displays
dashes, the meter is ready.
• Press and hold CAL CHECK for three seconds to
enter calibration mode . The display will show
“CAL” during calibration procedure. The blinking
“ZERO” asks for instrument zeroing.
• Place the CAL CHECK TM 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.
• After a few seconds the display will show “-0.0-”.
The meter is now zeroed and ready for calibration.
The blinking “READ” asks for reading calibration
standard.
• Remove the cuvette.