17
VALIDATION PROCEDURE
VALIDATION PROCEDURE
VALIDATION PROCEDURE
VALIDATION PROCEDURE
VALIDATION PROCEDURE
• Turn the meter on by pressing ON/OFF.
When the LCD displays “----”, the meter is ready.
On the secondary LCD “P1” or “P2” will appear,
indicating that the free or total chlorine parameter
is selected. The display code that appears is the
one of the last selected parameter.
• Select the parameter program for Free Chlorine
“P1”, or Total Chlorine “P2”, by pressing UP or
DOWN keys.
• Place the CAL CHECK™ Standard Cuvet
A
into the
holder and ensure that the notch on the cap is
positioned securely into the groove.
• Press ZERO/ and “----” will blink on the display.
• Wait for a few seconds and the display will show
“-0.0-”. The instrument is now zeroed and ready
for validation.
• Remove the cuvet.
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 Hanna CAL
CHECK
TM
Standards, otherwise erroneous results will be obtained. For accurate validation
and calibration please perform test at room temperature, 18 to 25°C (64.5 to 77.0°F).
