New Intrinsically Safe Area-Velocity Flowmeter

The new Isco 2150EX Flowmeter is the intrinsically safe version of Isco’s (USA) modular Area-Velocity flow system. The 2150EX is designed and Baseefaapproved for use in potentially Explosive Atmospheres (category 1G) under the ATEX Directive 94/9/EC. Powered by two Lithium batteries, the 2150EX uses highly efficient power management to achieve battery life up to 9 months with two-minute data storage interval. Rechargeable batteries and an AC-powered Network Interface Module provide great flexibility for a variety of long-and short-term monitoring applications. Isco’s exclusive variable rate data storage enables programmable changes in the data interval, to further extend battery life and provide more detailed data only during unusual flow events.

Area velocity flow measurement provides greater accuracy in openchannel applications where weirs and flumes are not practical, and where submerged, full pipe, surcharged, and reverse flow conditions may occur. Applications for the 2150EX flowmeter include: Portable and permanent-site AV flow monitoring for inflow/infiltration, sewer overflow, and other sewer studies; Measuring shallow flows in small pipes. The low-profile Area Velocity sensor minimises flow stream obstruction and senses velocity in flows down to 25 mm in depth; Level measurement in potentially explosive areas such as manholes, digesters, and storage tanks. The 2150EX stores data continuously in "flash" memory to protect against loss in case of power failure. Isco’s versatile Flowlink® Software provides site setup as well as retrieval and analysis of stored data.