User Guide

74Total Hardness MR
• Add 2 drops of HI 93735B
Buffer reagent
• Replace the cap and shake gently to mix.
Wait for 15 seconds.
• Place the cuvet 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.
• 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 the content of 1 packet
of HI 93735C Fixing reagent.
• Replace the cap and shake
gently till dissolution is com-
plete.
• Place the cuvet into the holder and
ensure that the notch on the cap is
positioned securely into the groove.
x 2