62
Fluoride
• Place the cuvet with the reacted distilled
water (# 1) into the holder and
ensure that the notch on the cap is
positioned securely into the groove.
• Press TIMER and the display will show the countdown prior to
zeroing the blank or, alternatively, wait for two minutes and
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.
• Insert the other cuvet (# 2) with the
reacted sample into the instrument.
• Press READ DIRECT and "SIP" will blink on the LCD during
measurement.
• The instrument directly displays concentration in mg/L of fluoride
on the Liquid Crystal Display.
Note: For wastewater or seawater samples, before performing
measurements, distillation is required.
Note: For most accurate results, use two graduated pipettes to
deliver exactly 8 mL of distilled water and 8 mL of sample.
# 2
# 1
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