The industry standard Hach CL17sc Colorimetric Chlorine Analyzer uses colorimetric DPD chemistry to continuously monitor water for free or total chlorine. The CL17sc will operate unattended for 30 days and is compliant with US EPA regulation 40 CFR 141.74. Monthly routine maintenance for the CL17sc can be performed in a few minutes, including changing reagents and cleaning the colorimetric cell. No special tools are required, and step-by-step, on-screen instructions for all routine maintenance activities give you the confidence that you performed the task correctly without missing any key steps.

The CL17sc is equipped with a comprehensive set of diagnostic features that help you prevent downtime. With a built-in flow meter, three-color status light, measurement cycle indicators, colorimeter window, and on-screen diagnostics menu you’ll spend less time identifying and fixing issues when they arise.