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Follow on Google News | FCI Thermal Mass ST100L Air/Gas Flow Meter For Municipal Water DisinfectionIdeal for Cramped Chlorination System Equipment Areas Where Other Meters Fail
By: Fluid Components International In order to provide a safe source of clean drinking water, all municipal water system operators rely on a disinfection system to kill germs. There are several different methods of disinfection treatment, such as chlorine and ozone, but chlorine remains a popular disinfectant around the world. Where chlorine systems are in use, accurate chlorine gas measurement is essential for disinfection and safe operation of the system. The successful measurement of chlorine presents a challenge for flow meter suppliers. Due to safety hazard regulations, flow meter manufactures cannot flow chlorine gas at their facilities to calibrate chlorine gas flow meters accurately. Furthermore, research has shown that the theoretical “air equivalency” The Model ST100L is an in-line, spool piece gas mass flow meter suitable for chlorine gas service and is available with an optional built-in Vortab Flow Conditioner. This inline model is designed specifically for line sizes of 1, 1.5 or 2 inches [DN25, DN40 or DN50], and the optional built-in flow conditioner overcomes any lack of available straight-run pipe in the installation. The meter’s Vortab flow conditioner eliminates both swirl and profile disturbances throughout the full flow range, including transitional region, to produce a repeatable flow profile for accurate, highly repeatable flow measurement. The ST100L Flow Meter is typically installed in a water disinfection system’s chlorine gas inlet line to the chlorinator panel. For operation in corrosive chlorine gas environments, this meter’s wetted material, including sensor element, inline flow body, flow conditioner and process connections, are all fabricated of Hastelloy C-276 to ensure their corrosion protection and long life. When selecting the ST100L Flow Meter, users have multiple communication options: 4-20 mA analog, frequency/pulse, or certified digital bus communications such as HART, Foundation Fieldbus, Profibus PA or Modbus RS485. Should a water plant’s communication need change, so can the ST100L meter with field or factory replacement of the output circuit board? Developed with a graphical, multivariable backlit LCD display, the ST100L Flow Meter brings new meaning to the term “process information” The feature-rich ST100L Flow Meter utilizes constant power thermal mass flow sensing technology that measure flow with 100:1 turndown in ranges from 0.006 to 1850 SCFM [0.01 to 3140 NCMH]. The transmitter/ Fluid Components International is a global company committed to meeting the needs of its customers through innovative solutions for the most challenging requirements for sensing, and measuring flow, pressure and temperature of gases. End
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