EMERSON
Measurement Instrumentation
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Rosemount™ 499ACL Chlorine Sensor

Chlorine Sensors measure free, total, or monochloramine chlorine. Free and monochloramine sensors require no pre-treatment or reagents. Sensor avoids pH correction.

The Rosemount 499ACL Chlorine Sensors are used for measuring free chlorine, total chlorine or monochloramine. The free chlorine sensor doesn't require sample pre-treatment or expensive reagents to maintain. The total chlorine sensor eliminates the need for pH correction with a standard reagent sampling system. And the monochloramine sensor doesn't not use reagents or sample pre-treatment for measurement. All three chlorine sensors have an easily replaceable membrane that does not require special tools. These amperometric sensors are ideal for use in drinking water applications.

Key Features

  • Measure free chlorine without sample pretreatment
  • No messy and expensive reagents needed
  • Automatic correction to at least pH 9.5
  • Easily replaceable membrane; no special tools required
  • Automatic compensation for changes in membrane permeability with temperature
  • Automatic pressure equalization maintains correct membrane tension
  • Variopol (VP) connector option allows the chlorine sensor to be replaced without running new cable