Swimming Pools and Spas use Chlorine as a disinfectant and so use chlorine analysers and pH meters to control the amount of chlorine that gets dosed. Residual Chlorine Analyzers include; Free Chlorine Analyser, Total Chlorine Analyser, and Combined Chlorine Analyzers. They may be colorimetric, amperometric, or polarographic (membrane) in design. Some advanced chlorine analysers offer bufferless operation. Some advanced residual chlorine analyzers offer reagentless operation. Polarographic sensors offer the most reliable, cost effective solution for Spa and Swimming pool disinfection control. The sensors used by Process Instruments in our Pool and Spa Controller are the same sensors that we use in our water treatment analysers.

An ideal Residual Chlorine Analyser and pH controller should be bufferless and reagent free, meaning it has a low total cost of ownership and with maintenance intervals at 6 or even 12 months. Bufferless Chlorine Analysers are fast becoming the instrument of choice for the engineer who wants the best residual chlorine analyser at the best price. A combined long-life pH sensor should be incorporated with options for more than one chlorine sensor and ORP. Temperature sensors should also be incorporated.

In the modern municipal swimming pool or spa or a swimming pool or spa operated privately in the leisure industry a Chlorine Residual Analyser Controller must offer an array of communication and control options. It should be possible to interface and control the Chlorine Analyser Monitor remotely over the internet, enabling data, alarms and setup information to be sent direct to your computer via GSM/GPRS modem or via a TCP/IP Local Area Network (LAN). Purchase costs for a Free or Total Residual Chlorine Monitor controller with pH meter should be less than, or comparable to, its competitors, but offer far greater functionality.

In many Spas and Pools the disinfection control is managed by a service provider who is usually off site. The swimming pool and spa disinfection controller should provide remote access via mobile phone texts and via the internet using GPRS.

Total Chlorine Analysers, and Free Chlorine Analyser, can enhanced with a long life pH sensor. Spa and Pool controllers that can automatically control chlorine dosing Total Chlorine Analyser, and Free Residual Chlorine Analysers are all available.

Pool and Spa Disinfection and Chlorine and pH Controller Key Benefits:

• Stable and reliable Residual Chlorine and pH measurement
  
• Low purchase cost
  
• Low cost of ownership
  
• SMS text alarms 
  
• Remote Access via Internet
  
• Automatic dosing control
  
• Other inputs to Datalog and Alarm
• Pool and Spa Chlorine Controller