32Free Chlorine
• 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.
Powder reagents procedure
• Add the content of one packet
of HI 93701 DPD reagent.
Replace the cap and shake
gently for 20 seconds (or 2
minutes in case of seawater
analysis).
• Wait for a minute to allow the
undissolved reagent to precipitate
and reinsert the cuvet into the
instrument.
• Press READ DIRECT and the display will show “SIP” during
measurement.
• The instrument directly displays concentration in mg/L of free
chlorine on the Liquid Crystal Display.
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