CL17sc with SC4500 Controller

Welcome to the CL17sc Resource Center

Here you will find everything you need to install, operate and maintain your instrument. If you have any additional questions, contact us and we will be happy to help get you the information you require.

Which Installation Kit is Right for Your Analyzer?

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Step by Step Installation Videos

With Pressure Regulator

With Standpipe
(>10 psi at y-strainer)

With Standpipe
(<10 psi at y-strainer)

If you ordered a CL17sc prior to 3/31/25 and require a modified standpipe, we will send you one at no charge.

Request Modified Standpipe

CL17sc is Now Available on a Pre-Assembled Panel

CL17sc Panel

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How to Change Your Reagents

How to Replace Tubing

How to Clean the Flowmeter

How to Clean the Colorimeter Cell

CL17sc Configuration Options

CL17sc

Range: 0.03-10 mg/L Cl₂

Ultra Low Range CL17sc

Range: 0.008 - 5 mg/L Cl₂

CL17sc

The CL17sc online chlorine analyzer extends Hach's decades-long legacy at the leader in online chlorine analysis. It uses EPA-approved colorimetric DPD analysis to deliver accurate and reliable measurements of free or total residual chlorine.

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CL17sc Panel

When you buy a water quality monitoring station from Hach, you'll receive an expertly designed, preassembled panel that makes installation straightforward and user friendly.

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ULR CL17sc

Online residual chlorine measurement options for ultra-low range have been either inadequate or inefficient - until now. The Ultra Low Range CL17sc gives you direct total chlorine results, eliminating the need for ORP or amperometric measurement.

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ULR CL17sc Panel

Our panel configurations allow you to maximize the inherent quality of the instruments, providing peace of mind while leveraging Hach's 100 years of water quality innovations.

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Welcome to the CL17sc Resource Center

Which Installation Kit is Right for Your Analyzer?