| January 15, 2013
Air/Gas Mass Flow Meter
The ST75 delivers precision flow measurement while reducing the consumption of fuel gases, specialty gases and pneumatic air.
Installing the flow meters in large process industry facilities and assembly plants with multiple gas compressors allows operators to compare compressor usage and adjust for optimum efficiencies. In addition, the use of mass flow meters at the point of compressed gas output helps to ensure peak performance at a given flow rate. Comparing the performance of multiple gas compressors is also useful in predictive maintenance applications where higher flow rates may indicate leaking valves or seals. Offering an extensive set of standard features, the unit is available for line sizes from 0.25 to 2.0 inches (6 to 51 mm), which is suitable for compressor gas line measurement, and provides three unique outputs: mass flow rate, totalized flow and media temperature. To ensure reliable performance under variable process and plant temperature conditions, the design includes media temperature compensation. The unit offers accuracy to ±1% of reading and ±0.5% repeatability. Its flow element has a no-moving parts design that employs platinum RTD sensors embedded in equal mass thermowells with microprocessor electronics that can be calibrated to laboratory standards for CO2 as well as many other gases.
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