Hanna Instruments HI 95747C - Manual (Page 15)

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• Turn the meter on by pressing ON/OFF.
When the LCD displays “747”, it is ready.
• Place the CAL CHECK TM Standard Cuvet A into
the holder and ensure that the notch on the
cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
• After a few seconds the display will show
“-0.0-”. The meter is now zeroed and ready for
validation.
• Remove the cuvet and place the CAL CHECK TM
Standard HI 95747-11 Cuvet B into the holder.
Ensure that the notch on the cap is positioned
securely into the groove.
• Press CAL CHECK TM and “SIP” will blink during
measurement.
• Wait for a few seconds and the display will show the validation standard value.
The reading should be within specifications as reported on the CAL CHECK TM Standard
Certificate. If the value found is out of specifications, please check that the cuvets are free of
fingerprints, oil or dirt and repeat validation. If results are still found out of specifications
then recalibrate the instrument.
VALIDATION PROCEDURE
Use the validation procedure to ensure that the instrument is properly calibrated.
Warning: do not validate or calibrate the instrument with standard solutions other than the Hanna
CAL CHECK
TM Standards, otherwise erroneous results will be obtained. For accurate Validation and
Calibration results, please perform test at room temperature: 18 to 25°C (64.5 to 77.0°F).