Accurate, Reliable Results

The Hach CL17 Chlorine Analyzer uses colorimetric DPD chemistry to monitor water continuously for free or total residual chlorine. The CL17 is a simple, dependable and economic solution, and the preferred choice to high-maintenance instruments that require frequent calibration. The CL17 analysis method is robust and not affected by changes in chlorine concentration, sample pH, temperature, flow, or pressure, thus offering more accuracy and reliability than alternative instruments and technologies.

Simple, Predictable Maintenance

Monthly routine maintenance for the CL17 can typically be performed in 15 minutes and includes changing reagents and cleaning the colorimetric cell. No special tools are required. For typical use, the CL17 will operate unattended for 30 days. Challenging applications may require more frequent cleaning.

Factory Calibrated

The CL17 Chlorine Analyzer is factory calibrated. A built-in electronic calibration curve is preprogrammed into the instrument. This instrument does not require recalibration unless specified by your regulatory agency for compliance reporting purposes.

EPA Compliant

The CL17 is compliant with US EPA regulation 40 CFR 140.74, and both Method 4500-CL G and Method 334.0 can be used for measurement of residual chlorine in drinking water.

Pump Control

Both an alarm for manual chlorine feed control and a 4-20 mA output for automatic control of chlorine feed pumps is available on the CL17 Analyzer.

What's in the box

Hach CL17 Chlorine Analyzer with AquaTrend Circuit Board, a one-month supply of reagents, 100 mL of Sulfuric acid, Maintenance kit, Installation kit, and Manual. （The power cord is ordered separay.）

Specifications

Accuracy:± 5 % or ±0.03 mg/L （ppm） as CL₂, whichever is greater

Air Purge:0.1 cfm （0.17 m³/h） instrument quality air at max. 20 psig （ca. 1.4 bar）

Alarm:Two alarms selectable for sample concentration alarm, analyzer system warning, or analyzer system shut-down alarm. Each is equipped with an APDT relay with contacts rated for 5A resistive load at 230 V AC.

Certifications:CE Approved
ETL Listed to UL 1262
ETL Certified to CSA 22.2 No. 142

Cycle Time:2.5 minutes

Dimensions （H x W x D）:37.1 in x 16.5 in x 7.5 in （943 mm x 419 mm x 191 mm）

Display:LCD, 3-1/2 inch digit measurement readout and six-character alphanumeric scrolling text line

Drain:1/2-inch ID flexible hose, hose barb

Enclosure Construction:ABS plastic, two clear polycarbonate windows, IP62-rated with the gasketed door latched.

Inlet:1/4-inch OD polyethylene tube, quick-disconnect fitting

Interferences:Other oxidizing agents such as bromide, chlorine dioxide, permanganate and ozone will cause a positive interference. Hexavalent chromium will cause a positive interference: 1 mg/L Cr?? = approximay 0.02 mg/L as Cl?. Hardness must not exceed 1,000 mg/L as CaCO?.

Light Source:Class 1 LED （light emitting diode） with a peak wavelength of 520 nm; 50,000 hours estimated minimum life

Lower Limit of Detection （LOD）:0.03 mg/L （ppm）

Mounting:Wall mount

Operating Humidity:90% at 40 °C （90% at 104 °F） maximum

Operating Temperature Range:5 to 40 °C （41 to 104 °F）

Power Requirements （Amps）:2.5 A

Power Requirements （Hz）:50/60 Hz

Power Requirements （Voltage）:100 - 115/230 V AC

Pressure Limit:Inlet Pressure to Sample Conditioning: 1.5 to 75 psi （0.1 bar to 5.2 bar）

Range:0 to 5 mg/L free or total residual chlorine

Ranges:0 to 5 mg/L free or total residual chlorine

Repeatability:0.01 ppm or 3.0 % , whichever is greater

Sample Flow Rate:200 to 500 mL per minute minimum required

Sample Temperature:5 to 40 °C （41 to 104 °F）

Weight:24.91 lbs. （11.3 kg）

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