Chlorine, Ozone, ClO2

Two different technologies are available for monitoring free chlorine, ozone, chlorine dioxide or monochloramine. The choice of the technology depends on water quality and treatment methods:

• Amperometric three electrode system TRIDES: Seawater  or common city water. Treatment with free chlorine, chlorine dioxide or ozone. pH below 8.5. No anticorrosion additives. Amperometric systems have lower cost of ownership (no reagents). Under unknown conditions, however, it is safer to use a photometer.
• Process photometers CODES: Work under the same conditions as the amperometric system. In addition they can be used also for monochloramine and total residual chlorine. No limit for pH levels. They also work well in the presence of anticorrosion additives. Biofouling can be powerfully reduced with the optional Cleaning Module.

A high precision portable photometer is needed for calibration in any case: CHEMATEST portable photometer