Testomat 2000 THCL® Process photometer for total chlorine 0-2.5 ppm and water hardness The process photometer Testomat 2000 THCL® dtermines the content of total chlorine in the 0 to 2.5 mg/l (ppm) range using the colourimetric analysis principle and the existing water hardness via titration. Application area: - Protection of reverse osmosis membranes against blocking due to hardnessand against destruction due to a high chlorine content. - Incl. 2 independently programmable limit value contacts for monitoring and controlling tasks; the analysis result is recorded via an optional printer board (current interface SK910) for a printer (0/4-20mA). Required reagents: CL2250A, CL2250B, CL2250Cand suitable hardness reagent TH202 5. i / i