Water Analytics

Hach CL17sc / CL17Dsc

Online Chlorine Analyzer

A DPD-based online analyzer for continuous free or total chlorine measurement in drinking water, wastewater and industrial cooling water.

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Hach CL17sc / CL17Dsc Online Chlorine Analyzer
Hach · CL17sc / CL17Dsc
01

Overview

The CL17sc / CL17Dsc continuously measures free or total chlorine using the established DPD colorimetric method. Automatic baseline correction, controlled sample flow and SC-platform diagnostics support stable monitoring with predictable reagent use.

02

Key characteristics

  1. 01Free or total chlorine configurations
  2. 02Automatic baseline correction
  3. 03SC controller platform integration
  4. 04Colorimeter and flow diagnostics
03

Technical specifications

Measured parameter
Free or total chlorine, configuration dependent
Measurement method
DPD colorimetry
Measurement range
0 to 10 mg/L as Cl₂
Limit of detection
0.03 mg/L
Sample temperature
5 to 40 °C
Sample pressure
0.3 to 5.2 bar to the Y-strainer; 0.1 to 0.3 bar at the analyzer
Sample flow
60 to 200 mL/min
Enclosure
IP66; approximately 342 × 329 × 177 mm, 4.1 kg
04

Applications

  • Drinking water
  • Secondary water supply
  • Industrial cooling water
05

Selection notes

  1. 01

    Choose free- or total-chlorine chemistry for the monitoring objective.

  2. 02

    Provide a representative sample with stable pressure, flow and temperature.

  3. 03

    Plan reagent replacement, drain routing and SC controller integration.