he HI709 Checker®HC is a simple, accurate,
and cost e'ective way to measure high
ranges of manganese. Designed as a
more accurate alternative to chemical
test kits, the HI709 provides quick,
accurate results in four easy steps.
Step One - Add a sample to
the included cuvette(s).
Step Two - Insert sample into the
Checker HC and press the button to zero.
Step Three - Remove sample
and add reagent.
Step Four – Reinsert sample, press and
hold the button for 3 seconds to start
reaction timer. Reading will be taken
automatically and the results displayed.
The HI 709 uses an adaptation of the
Standard Methods for the Examination
of Water and Wastewater, 18th edition,
Periodate method. The reaction
between manganese and reagents
causes a pink tint in the sample.