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Total chlorine confidence. From the global leader in chlorine analysis.
Meet your unique water cycle needs with the new Ultra Low Range CL17sc online total chlorine analyzer from Hach. Whether treating utility water, product water, or wastewater discharge, you’ll have the direct chlorine measurements you need to optimize your process. You’ll be able to protect valuable assets and report to regulatory agencies with confidence.
| Accuracy | ± 5% or ± 0.01 mg/L (whichever is greater) from 0 – 4 mg/L; ± 10% from 4 – 5 mg/L |
| Air Purge | Optional with 3/8-inch quick-connect fitting and tubing; 0.003 m3/min at 1.38 bar (20 psig) maximum |
| Alerts | Low and high chlorine. Dirty cell. Low and high sample flow. |
| Certifications | CE compliant with: EN 61326-1, CISPR 11, EN 50581 ACMA RCM South Korea KC Certificate North America: FCC Supplier’s Declaration of Conformance, IEC/EN 60529, ICES-003 |
| Controller Compatibility | SC200, SC1000, SC4500. All controllers sold separately |
| Cycle Time | 2.5 minutes |
| Dimensions (H x W x D) | 342 mm x 329 mm x 177 mm |
| Drain | ½-inch ID flexible hose |
| Enclosure Rating | IP66 |
| Inlet | ¼-inch OD polyethylene tube, quick-disconnect fitting |
| Inlet Pressure | 0.3 – 5.2 bar (4.5 – 75 psig) supplied to Y-strainer 0.1 – 0.3 bar (1.5 – 5 psig) supplied to analyzer |
| Installation Kit | Standpipe Installation Kit |
| Interferences | Other oxidizing agents such as bromide, chlorine dioxide, permanganate, and ozone will cause a positive interference. |
| Light Source | LED, measurement at 510 nm, 1 cm light pathlength |
| Lower Limit of Detection (LOD) | 0.008 mg/L Cl₂ at 25 °C |
| Mounting | Wall mount |
| Operating Humidity | 0 – 90% relative humidity, non-condensing |
| Operating Temperature Range | 5 – 40 °C (41 – 104 °F) |
| Parameter | Chlorine, total residual |
| Power Requirements (Voltage) | 12 VDC, 400 mA maximum (supplied by the controller) |
| Range | 0.008 – 5 mg/L Cl₂ |
| Reagent Consumption | 0.5 L of buffer solution and 0.5 L of indicator solution in 31 days |
| Sample Flow Rate | 60 – 200 mL/min through the instrument |
| Sample Requirements | Y-strainer filtration with 40-mesh screen or higher |
| Sample Temperature | 5 – 40 °C (41 – 104 °F) |
| Warranty | 12 months |
| Weight | 4.1 kg (analyzer only) |
| What’s included? | ULR CL17sc Chlorine Analyser with Standpipe Installation Kit (9790200); SC4500 Controller for 2 digital sensors, Prognosys, 5x mA Output, 100-240 VAC, without power cord (LXV525.99A11551); User Manual |
