Applikon Analytical has added two products to its Alert range: the Alert Colorimeter for Total Chlorine and the Alert Colorimeter for Free Chlorine.
The analysers have been designed for reliability and minimal operator attendance and conform to ISO 7393/2 - 1985 water quality - determination of free and total chlorine.
The analysers use a buffer and DPD solution and perform the analysis either at 10 minute intervals or at lower frequency where required.
Using both analysers can allow a determination of combined chlorine (chloramines and organic chloramines) to be carried out.
Both analysers use Differential Absorbance Colorimetry (DAC) methodology to prevent background sample colour and solids adversely affecting the analysis.
Both analyses have a working range of 0 - 2.5 mg/l with a limit of detection at two parts per billion.
The analysers feature low reagent use, typically less than 0.5ml per analysis for each reagent, and minimal consumables.
Attendance for planned maintenance is usually carried out on an annual basis.
