Electro-Chemical Devices' SMS-22 Sulfide Ion Measurement System
The SMS-22 Sulfide Ion Measurement System can be installed with no special tools. It features user-selectable automated sequential sampling of sulfide ions in water and lowers plant technician and supply maintenance costs. The measurement system saves time and labor costs for municipal water operations by completing all the necessary steps to measure sulfide ions in a water sample. Because sulfide ions only exist at high pH values, this is a multi-step process. The SMS-22 conditions the sample, measures the sulfide, neutralizes the sample, measures the pH and drains and rinses the cell. After measurement, the highly caustic sample pH is reduced to a safe level near pH 8. The system iseasy to install and maintain and features 4-20 mA outputs that display the total sulfide as well as the neutralized pH value. The output values are captured in the measurement cycle and displayed until the next measurement cycle. The rugged enclosure provides IP66 protection and is rated NEMA 4X. The base is made of gray hot-molded fiberglass-reinforced polyester and the cover is made of transparent polycarbonate with non-metallic hinges.