HANNA HI 96761

The HI 96761 meter measures the traces of total chlorine ( Cl2) content in drinking water samples.

This meter uses an exclusive positive-locking system to ensure that the cuvette is in the same place every time it is placed into the measurement cell.

Chlorine is integrated into water supplies in it’ s molecular form for the purpose of destroying unwanted microorganisms. Once introduced to the water, chlorine will form into three different forms; free chlorine, hypochlorous acid, and hypochlorous ions. Free chlorine will combine itself with ammonia and nitrogen compounds, creating combined chlorine. When chlorine and ammonia combine, it creates chloramines ( monochloramine, dichloramine, and nitrogen trichloride. Proper testing should be administered when chlorinating any water supply, as potentially harmful compounds such as chloroform may be formed. N, N-diethyl-p-phenylenediamine ( DPD) as well as other methods are available for measuring total residual chlorine.

Order Information:
HI 96761 is supplied with sample cuvettes with caps ( 2) , 9V battery and instruction manual.
HI 96761C includes photometer, sample cuvettes with caps ( 2 ea.) , 9V battery, scissors, cloth for wiping cuvettes, instrument quality certificate, instruction manual and rigid carrying case.