Industrial Residual Chlorine Controller

Industrial digital online Residual Chlorine meter CL650 with large LCD display screen,can display multi-parameter at the same time.The meter had ATC 0-60℃,support RS485,can store 50 measurements.Hysteresis amount can be set freely.The watchdog function ensure the instrument will not crash.
Chat Now

Product Details

High Quality online residual chlorine/pH Controller LH-CL650


 Industrial Residual Chlorine Controller

Industrial Residual Chlorine Controller


1. The large LCD display, English menu operation.
2.Multi-parameter display at the same time: the value of residual chlorine,pH,temperature, output current, alarm points, etc. Intuitive and easy to read, and alarm for range over run.
3.Screen displays alarm status and accompanied by a switch ON / OFF signal output
4.Automatic Temperature Compensation: Automatic 0℃ to 60℃
5.Communication function (optional): RS-485 communication interface(MODBUS protocol is partially compatible), 4 to 20 mA current output corresponding to the DO value can be set freely.
6.Notepad: can store 50 measurements, the user can record measurement data.
7.Hysteresis amount can be set freely to avoid frequent switching relay action
8.Watchdog function: to ensure that the instrument will not crash
9.Core devices from famous foreign brands
10.Restore the factory settings. Power-down protection> 10 years

Industrial Residual Chlorine Controller 

Industrial Residual Chlorine Controller

Technical parameters:

Product Name:

Industry online residual chlorine/pH controller

Measure range & Accuracy

0-14 (pH)    ±0.02pH

Hypochloric acid:0-20ppm    ±0.01mg/L

Residual chlorine:0-10ppm    ±0.01mg/L


0.01pH, 0.01mg/L(residual chlorine),0.001mg/L(HOCL)

Input Resistance:

≥1x10 ¹²Ω

Temp Compensation:

Manual / Auto temperature compensation


RS485, standard Modbus

Signal output:

4-20mA output, Maximum loop 750Ω, 0.01%FS

Power supply:

220V AC 10%,50/60Hzz



Hole size




Industrial Residual Chlorine Controller

About us

Founded in 2008, Hangzhou Lohand Biological Technology Co., Ltd. Is a company that designs, develops, produces and sells water quality rapid test strips, reagents and precision testing instruments. It is located in Jianggan Science and Technology Park and relies on Zhejiang University Food Science and Technology Park and the West lake Science and Technology Park, focusing on technological innovation, has obtained a number of patents and produces provide customers with professional, fast, affordable and simple testing products and services to create a new history of water quality monitoring.

In the course of ten years of development, we have been constantly working hard in this field, and constantly improving product functions, testing accuracy, dedicating to environmental water quality monitoring and rapid monitoring of product development. The products developed and produced mainly include COD, ammonia nitrogen, total phosphorus, total ammonia integrated machine, miniature COD reactor, water quality monitoring electrode, digital refractometer, etc. Most of the company’s products have obtained CE certification; widely used in domestic environmental protection bureaus, industrial enterprises, university research institutes, food manufacturing enterprises; especially electrochemical testing products have been sold at domestic and foreign.

We sincerely welcome domestic and foreign merchants to achieve win-win cooperation, common development and create brilliant!

Industrial Residual Chlorine Controller

Industrial Residual Chlorine Controller


1、Telephone, network, on-site consultation, oral or text acquisition of company and product information;

2、Get product information by email or email to gain insight into company and product information;

3、Fill out the cooperation registration form to understand the product cooperation policy;

4、The company checks and evaluates cooperation credits;

5、In-depth discussion of cooperation details;

6、Achieve cooperation intentions;

7、Sign a cooperation agreement;

9、Delivery / inspection


Hot Tags: industrial residual chlorine controller, China, manufacturers, suppliers, factory, brands, customized, price


You Might Also Like