411homerepair.com

Latest Articles

Timber Products in Wet Environments

Although timber and water do not mix well, it is really hard not to use any wood at all in the bathroom. More often than not cabinets are made out...

on Nov 22, 2017

The Best Glass Garage Doors for Restaurants

Restaurants have different sizes and features. But so do garage doors. When they meet each other, they make the perfect pair for all the right...

on Nov 17, 2017

How to Pick the Right Refrigerator for Your Kitchen

Whether you love cooking or just enjoy being in the kitchen to grab a quick bite out of the fridge; there’s no denying the importance your...

on Nov 16, 2017

How to Repair Your Forklift Battery

Although in principle forklift batteries are similar to car batteries when it comes down to repairing them the process is very different. In...

on Nov 15, 2017

Why Sectional Doors are the Best Garage Door Option

One would think that an overhead garage door, which consists of many parts, and needs good care to remain safe will not t be so popular. But the...

on Nov 15, 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

Random Articles

3 Simple Ways to Give Your Living Room a Quick Makeover

If your living room needs more life, you don't need to roll up your sleeves, repaint, and install new carpet to achieve it. The answer to your...

Interior Design / Decor

Marble Cleaning and Maintenance Tips

Marble is a natural stone that is commonly used in construction. Though marble cleaning is not a hectic process, there are some things you should...

Floors / Tile / Hardwood

Modern Canvas Art in Interior Design

Art can be a way of giving an interior the wow factor without the need to spend thousands on painting and decorating. Decorating, wallpaper and...

Interior Design / Decor

Looking for Something More Than Just a Garden Shed

How have garden outbuildings have evolved into more than just places to keep the lawnmower. Most of us have childhood memories of how the garden...

Garden / Landscaping

4 Quick Budgeting Tips for Saving for a House

Buying a home is one of the biggest milestones in a person’s life, and is therefore also one of the most expensive and perhaps one of the most...

Real Estate / Finance

Actions

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