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Chlorine Sensors 
Chlorine sensors measure free chlorine, monochloramine, and total chlorine. The primary application is drinking water disinfection, although total chlorine is often measured in treated wastewater, including reclaimed wastewater.
Model 498CL pH-Independent Free Chlorine Sensor
The Model 498CL-01 sensor is intended for the determination of free chlorine in drinking water. Unlike other amperometric free chlorine sensors, the response of the Model 498CL-01 is practically independent of the sample pH.
Model 499ACL Chlorine Sensors
Model 499ACL-01 sensors are a family of three sensors for the determination of free chlorine (option -01), total chlorine (option -02), and monochloramine (option-03). The total chlorine sensor must be used in the sample conditioning system (TCL).
Model FCL Free Chlorine Measuring System
The Model FCL is a complete system for the determination of free chlorine. It includes a 499 ACL-01chlorine sensor, a pH sensor, cables, analyzer, and a constant head flow controller. The pH sensor is used to correct chlorine readings for pH changes.
Model FCLi Free Chlorine Measuring System
The Model FCLi is a complete system for the determination of free chlorine. It includes a Model 498CL-01 chlorine sensor, cable, constant head flow controller, and analyzer. No auxiliary pH sensor is required.
Model MCL Monochloramine Measuring System
The Model MCL is a complete system for the determination of monochloramine in water. It consists of the 499ACL-03 sensor, a cable, an analyzer, and a constant head flow controller.
Model TCL Total Chlorine Analyzer
The Model TCL is a sample conditioning system used with the Model 499ACL-02 total chlorine sensor to measure total chlorine in water. The TCL continuously injects reagents into the sample that convert total chlorine into a measureable form.
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