User Guide

127

Phosphorus

x 10

• Wait for a few seconds and the display

will show "-0.0-". Now the meter is

zeroed and ready for measurement.

• Remove the cuvet.

• Add 10 drops of HI 93706A Molybdate

reagent.

• Add the content of one packet of

HI 93706B-0 Phosphorus Reagent B

(Amino Acid) to the cuvet. Replace

the cap and shake gently until

dissolution is complete.

• Reinsert the cuvet into the instrument.

• Press TIMER and the display will show the countdown prior to the

measurement or, alternatively, wait for 5 minutes and press READ

DIRECT. In both cases "SIP" will blink during measurement.

• The instrument directly displays concentration in mg/L of phosphorus

on the Liquid Crystal Display.

INTERFERENCES

Interference may be caused by:

Sulfide

Chloride above 150000 mg/L

Calcium above 10000 mg/L as CaCO

Magnesium above 40000 mg/L as CaCO

Ferrous iron above 100 mg/L