User Guide

135 Zinc
• Fill one cuvet with 10 mL of the reacted
sample up to the mark.
• Place the cap and insert the cuvet into
the cell and ensure that the notch on
the cap is positioned securely into the
groove.
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will
show “-0.0-”. Now the meter is zeroed
and ready for measurement.
• Remove the cuvet and add 0.5 mL of HI 93731B
cyclohexanone to the cuvet.
Note: To prevent any contamination from
the polycarbonate cap, prior to replacing it,
close the sample cuvet with the supplied
HDPE plastic stopper.
• Replace the cap and mix the sample for
15 seconds.
• Insert the sample into the instru-
ment.
10 mL