411homerepair.com

Latest Articles

Home Energy Efficiency Key To Battling Climate Change

On April 22nd last year, the Paris Agreement was signed off by 175 nations to mark global action against climate change. The first ever...

on Mar 24, 2017

Tips for Excellent and Cost-Saving Home Repairs and Glass Works

When was the last time you did major repairs to the house you spend most of your days in? You know that prevention is better than cure, right? So,...

on Mar 21, 2017

Top Things You Should Prepare Before a Big Remodeling Project

Starting a home remodeling project is always exciting. You have a new design in mind and you are eager to get the project started. You have a team...

on Mar 16, 2017

How Large can I Build a Structure in my Backyard?

If you are really asking how big you can build without having to worry about permits and paperwork, that is a different issue than having an...

on Mar 16, 2017

How Handyman Services can be Handy

Living in the big city, where everything is on the go, life can get hectic and often times it is your home that may be left neglected over other...

on Mar 16, 2017

Residual Chlorine Analyzer Applications for Pools

by Guest on Jun 6, 2011

Chlorine meters are used in many applications requiring the measurement of residual chlorine concentration for chlorine monitoring or residual chlorine dosing control.

A residual chlorine analyzer or meter has various applications including:

  • Continuous chlorine monitoring
  • Water treatment plant residual chlorine control
  • Secondary chlorination free chlorine control
  • Distribution monitoring for total residual chlorine
  • Cooling tower chlorine monitoring and control
  • Pasteuriser chlorine dosing control
  • Seawater chlorination control
  • Chlorine in seawater monitor

The membraned amperometric chlorine sensor is enhanced with a third, reference, electrode which eliminates zero drift. pH correction is often not required at all. (NB. These chlorine sensors are often known as polarographic chlorine sensors although this is a misuse of the word polarographic).

The chlorine sensor used by the Residual Total Chlorine Monitors and the Residual Free Chlorine Monitors are both largely pH independent meaning that both chlorine analyzers are bufferless and reagentless. They both utilize amperometric chlorine sensors and both show remarkable sensitivity and stability. For those making a chlorine measurement at high pH (>pH 8.5) on variable pH water it is possible to provide pH compensation from either a pH sensor connected to the chlorine analyser or from an external pH meter.

The chlorine sensors work by separating the electrodes that perform the chlorine measurement from the sample, by a membrane. This membrane allows the free residual chlorine (HOCl and OCl-) or the Total Residual Chlorine (HOCl and OCl- plus chloramines) through the membrane. Inside the sensor the residual chlorine meets the electrolyte which is at a low pH. This converts the majority of the OCl- to HOCl. The HOCl is reduced at the gold working electrode and the current generated is proportional to the Free Chlorine or Total Chlorine present, and the chlorine analyzer gives a reading in chlorine ppm or mg/l.

This technique is the most advanced method of continuous chlorine measurement and has many benefits to the user including a very stable chlorine measurement and better chlorine dosing control.

In addition to residual chlorine measurement the free chlorine sensor determines the chlorine concentration and the chlorine analyzer can control the chlorine dosing using a variety of control algorithms including PID control.

The Residual Chlorine Monitor is bufferless and reagent free, meaning it has a low total cost of ownership and with maintenance intervals at 3 or even 6 months, the HaloSense bufferless Chlorine Monitor is fast becoming the instrument of choice for the engineer who wants the best chlorine monitor at the best price.

The HaloSense Free and Total Residual Chlorine Analyzers are equipped with process control options, datalogging, relay outputs, serial comms, (TCP, Ethernet, ModBus are available now with Profibus available soon). Remote Access of the chlorine monitors (including remote access to all control options) is available via the internet, and via a LAN. In fact the HaloSense range of chlorine analyzer products has all the options you could want in a Chlorine Analyzer whilst maintaining a low cost and great value for money.  

Most Recent Articles

Sponsored Articles

Random Articles

Tulip Planting Guide

The gems of bulb gardening are tulips. Tulips offer a wide array of colors and variety of flower shapes and sizes. Flower colors include pink,...

Garden / Landscaping

Porcelain Enamel Characteristics and Repair

Porcelain enamel is a specially formulated, highly durable glass permanently fused to metal under extremely high temperatures. The metal may be...

Kitchen / Bathrooms

Who Pays for What in Real Estate?

One very common question of real estate transactions is, "Who pays for what on a real estate transaction". Below is a list to give you an...

Real Estate / Finance

Commonly Asked Heating and Cooling System Questions

When it comes to heating and air conditioning, there are a multitude of questions that homeowners may have about their systems. This is especially...

Cleaning / Maintenance

Do You Need a New Roof? Twelve Warning Signs

As any homeowner knows (and cringes whenever they think about it), the roof of their home is far from permanent. Although it's generally made...

Roofing / Gutters

Actions

Contact Us | Submit Article | RSS | 411homerepair © 2017