Chlorine Analyzer - Colorimetric Dpd Chemistry | Continuous Monitoring, 30-day Unattended Operation, Simple 15-minute Maintenance

The Hach CL17 Chlorine Analyzer uses colorimetric DPD chemistry to monitor water continuously for free or total residual chlorine which is the same method (Standard Method 4500-Cl G) as used for grab samples. This analysis method is not affected by changes in sample pH, temperature, chlorine concentration (within the measurement range), pressure or flow, thus offering more accuracy than other methods in the market today.
Simple, Predictable Maintenance

Monthly routine maintenance for the CL17 can be performed in 15 minutes and includes changing reagents and cleaning the colorimetric cell. No special tools are required. Under typical use, the CL17 will operate unattended for 30 days.

Re-Calibration Not Necessary

Calibration of the CL17 with a chlorine standard or against a reference analysis is possible; however, it is neither necessary nor recommended due to its factory-established embedded calibration curve.