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Introducing the NEW Hach CL17sc Chlorine Analyzer
Hach CL17sc Chlorine Analyzers
Hach CL17sc Chlorine Analyzers
Continuous chlorine measurement for up to 30 days unattended
Simplified tubing replacement cartridge harness easily clips into place
See-through enclosure window highlights diagnostic multicolored warning/status indicators
Hach’s CL17sc colorimetric chlorine analyzer offers familiar features and the same reliability as the original CL17, now with enhanced diagnostics, communication, and ease of maintenance. Continuously monitor up to 10 mg/L chlorine content in your sample stream with a robust flow-through instrument design that’s not affected by changes in chlorine concentration, sample pH, temperature, flow or pressure. This ensures reliable, accurate measurements with minimal operator intervention. Even maintenance is easy—just change the reagents and clean the colorimetric cell monthly. Compliant with US EPA regulation 40 CFR 141.74.
New user-friendly housing and components
The CL17sc analyzer housing has been completely redesigned with ease of use in mind. The IP66-rated housing features a window that lets you view reagent levels and colorimeter status. The multicolored warning indicator alerts you to problems with just a glance. The quick-change one-piece tubing cartridge harness easily snaps into place in seconds; no special tools required.
Measure both free and total chlorine
Analyzers measure either free or total chlorine; just select the unit with the right buffers and reagents. The CL17sc automatically mixes the solutions into your sample every 2.5 minutes, producing a magenta color with intensity proportional to its chlorine concentration. Onboard flow meter continuously measures incoming flow to ensure it’s within specifications. Flow and photometrically measured chlorine concentration measurements are sent out of the instrument to your controller via 6.6'L digital cable assembly included with CL17sc analyzer. Extension cables (3.2'L and 25'L) are available below.
Expanded connectivity with SC controllers
CL17sc analyzers connect to any SC-based digital Hach controller for power, operation, data collection, data transmission and diagnostics (all controllers sold separately). We recommend the Hach sc200 controllers listed above right. These rugged controllers mount remotely and provide a local readout display. They feature two 4-20 mA outputs, four relays (for user-programmable alarms), internal data logging with SD card removable memory and an expansion slot for facility communications such as Modbus, PROFIBUS® DP or HART®. Detailed user-programmable diagnostic alerts include high/low chlorine alarms and bubble detection, with additional alarms for sample flow faults. Choose from single- or dual-input controllers. Dual-input models allow connection of an additional Hach digital sensor such as another CL17sc or another parameter (pH, DO, conductivity, turbidity, etc).
Analyzers include: a one-month supply of reagents (except where noted) and installation kit. Installation kits include: sample inlet and drain tubing, Y-strainer, and shutoff valves for flow control.
Analyzers are available with two types of installation kits. For standard mounting, choose models with the debubbling standpipe installation kit. For applications with high or fluctuating pressures, choose models with a pressure regulator installation kit.
For a complete system, order:
1. CL17sc analyzer
2. SC controller (sc200 models listed below; sc1000 models on page 1227 in Catalog 130)
Range: 0.03 to 10 mg/L free or total residual chlorine
Accuracy: ±5% or ±0.04 mg/L (ppm) as Cl₂ (whichever is greater) ≤5.0 mg/L; ±10% as Cl₂ >5.0 mg/L
Measurement interval: 2.5 minutes
Inlet pressure: 1.5 to 5 psig
Sample flow rate: 60 to 200 mL/min through the instrument (integral flow meter reports value)
Tubing connections
Inlet (sample): 1/4" OD quick-connect fitting for rigid tubing
Outlet (drain): 1/2" ID slip-on fitting for soft plastic tubing
Output: Hach digital sensor cable signal for SC-based controllers
Display: supplied by connected SC-based controller
Operating temperature: 41 to 104°F
Power: supplied by connected SC-based controller (12 VDC)
Enclosure: IP66
Cable: 6.6'L single digital Hach type (can be extended up to 49'L max.)
Dimensions: 12.9"W x 13.5"H x 7.0"D
If your source pressure is higher than this range, be sure to order an analyzer with a pressure regulator kit.
Tubing replacements take almost no time Housing features a window that lets you view reagent levels and the colorimeter status lights
MFR # DESCRIPTION INCLUDED REAGENTS STOCK #
8572300 CL17sc Analyzer with Standpipe Kit None 53221
8572700 CL17sc Analyzer with Standpipe Kit Free Chlorine 53222
8572800 CL17sc Analyzer with Standpipe Kit Total Chlorine 53223*
8572400 CL17sc Analyzer with Pressure Regulator Kit None 53224
8572900 CL17sc Analyzer with Pressure Regulator Kit Free Chlorine 53225
8573000 CL17sc Analyzer with Pressure Regulator Kit Total Chlorine 53226*
*Shipping: Hazmat fees apply when shipping by air.
sc200 Controllers and Installation Accessories
MFR # DESCRIPTION STOCK #
LXV404.99.00502 sc200 Controller with One Digital Sensor Input, 100-240 VAC 29175
LXV404.99.00552 sc200 Controller with Two Digital Sensor Inputs, 100-240 VAC 202010
LXV404.99.70552 sc200 Controller with Two Digital Sensor Inputs, 24 VDC 29179
5448800 Power Cord for sc200 Controller, with Strain Relief, 125 VAC, 6'L 38060
6122400 Extension Digital Cable, 3.2'L 204614
5796000 Extension Digital Cable, 25'L 204595
4743800 Sample Inlet Tubing, 1/4"OD x 7'L, Polyethylene 45314
Drain Outlet Tubing, 1/2"ID x 25'L, Polyethylene 48693
Additional Resources
CL17sc Data Sheet
CL17sc Q&A Sheet
CL17 vs. CL17sc Comparision Guide
Free Chlorine Reagent Set 28235 Free Chlorine Reagent Set 28235
Hach Chlorine Reagent Sets & Replacement Parts for CL17sc Analyzers
Genuine Hach reagents are formulated to meet the strictest quality standards
Free chlorine reagent sets include: one 24-gram bottle of DPD compound (stock # 32497), one 473-mL bottle of free chlorine indicator solution (stock # 32498) and one 473-mL bottle of free chlorine buffer solution (stock # 32499).
Total chlorine reagent sets include: one 24-gram bottle of DPD compound (stock # 32497), one 473-mL bottle of total chlorine indicator solution (stock # 32495) and one 473-mL bottle of total chlorine buffer solution (stock # 32496).
Chlorine Reagent Sets for CL17sc Analyzers
MFR # DESCRIPTION STOCK #
REAGENT SETS
2556900 Free Chlorine Reagent Set 28235
2557000 Total Chlorine Reagent Set 28236*
REAGENT SET COMPONENTS
2297255 DPD Compound, 24 g 32497
2314011 Free Chlorine Indicator Solution, 473 mL 32498
2314111 Free Chlorine Buffer Solution, 473 mL 32499
2263411 Total Chlorine Indicator Solution, 473 mL 32495
2263511 Total Chlorine Buffer Solution, 473 mL 32496
*Shipping: Hazmat fees apply when shipping by air.
Tubing replacements take almost no time 53227
Tubing replacements take almost no time to change out with the one-piece cartridge harness kit
Replacement Parts for CL17sc Analyzers
MFR # DESCRIPTION STOCK #
4743800 Sample Inlet Tubing, 1/4"OD x 7'L Polyethylene 45314
Drain Outlet Tubing, 1/2"ID x 25'L Polyethylene 78693
8560400 CL17sc Pre-Assembled Tubing Cartridge Harness Kit w/ Tubing Clip & Stir Bar 53227
8573100 CL17sc Cell Cleaning Kit 53228
244932 Sulfuric Acid, 5.25 N, 100 mL, Dropper Bottle 21143
Wooden Handle Swabs, 1000 Count 43796
8568200 CL17sc Calibration Verification Kit 55311
8573200 CL17sc Calibration Verification Refill Kit 55501
8560500 CL17sc Installation Kit (Standpipe) 53229
8565700 CL17sc Installation Kit (Pressure Regulator) 53230
Reagent Label Redesign
Hach has redesigned the labeling on the indicators, buffers and DPD compound for the CL17 and CL17sc reagents. The new color-coded design ensures that operators will not confuse the indicator and buffer while servicing the CL17 or CL17sc.
Although the label has changed, chemical formulations for the indicators, buffers and DPD remain identical for both total and free chlorine components. Indicators, buffers and DPD are identical for the CL17 and the new CL17sc.
Hach CL17sc Chlorine AnalyzersOld label version Hach CL17sc Chlorine AnalyzersNew color-coded version
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