Electro-Chemical Devices
An all-in-one sulfide analyzer helps control odor
The new SMS-22 Sulfide Ion Measurement System (photo) can be quickly installed with no special tools, features user-selectable automated sequential sampling of sulfide ions in water and lowers plant technician and supply maintenance costs. The SMS-22 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 SMS-22 uses a sulfide ion selective electrode (ISE) to measure the total amount of sulfide present in the sample. — Electro-Chemical Devices, Inc., Irvine, Calif.
www.ecdi.com
Automation Products
Density measurement with no moving parts
The Dynatrol CL 10-HY Density Cell and Series 2000 Density Digital Converter (photo) can be used to measure the density of ammonium hydroxide, caustic soda, ethylene glycol, hydrochloric acid, methanol, nitric acid, oleum, phosphoric…
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