Water Quality Instruments

Applications we specialize in:

pH Measurement & Control

While a variety of pH meters are used in wastewater neutralization, process control, drinking water or wastewater permit compliance, sensor selection is the key.  We provide unique sensors for the following water types:

  • Clean – processes include:
    • Filtered water for pharmaceutical manufacturing
    • Power generation
    • Food production
    • Potable water
    • Reverse osmosis
    • Boiler feed water
    • Boiler condensate
  • Dirty – these types of applications are where sensors can be coated, but the electrode is unharmed. The coating may be sticky or a sludge. Applications include:
    • Municipal wastewater treatment
    • Food manufacturing
    • Industrial water and wastewater
  • Aggressive – this water often creates hard coatings that crystallize on the sensor. Applications include:
    • Parts washing
    • Metal plating
    • Metal finishing
    • Chemical production
    • Refinery processes 

 pH Measurement & Control

 

Chlorine Monitoring

This is a difficult and often misunderstood measurement to make for industrial water treatment.

Here’s why: Chlorine in solution is a weak acid, so the concentration of active chlorine is affected by changes in pH.  Furthermore, if Ammonia is present, chlorine reaction time changes. Each application is different and may require the use of ORP measurement, free-chlorine, combined chlorine or total chlorine measurements.  We can help identify the most straightforward sensing technology for you.

Conductivity Monitoring

Electrical conductivity is the ability of an electrical current to pass through water.

This can change based on the concentration of salts, minerals, acids or caustics dissolved in the water, and the resulting conductivity measurement is an indication of water purity.  This is especially important in these applications:

  • Reverse osmosis filtration
  • Boiler feed
  • Boiler condensate water
  • Cooling towers
  • CIP treatment
  • Metal plating
  • Metal finishing
  • Pickling
  • Power generation
  • Water used in food and pharmaceutical production.

These systems are most often used for process control for permit compliance.

Conductivity Monitoring

Contacting Conductivity

Toroidal Conductivity

Toroidal Conductivity

Sanitary Toroidal Conductivity

Sanitary Toroidal Conductivity