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Obtain Accurate Differential Pressure and Vacuum Readings

| By Chemical Engineering

The Type 226A and 228A Baratron Differential Capacitance Manometers (photo) provide accurate and repeatable differential pressure and vacuum readings from 0.027 to 133 kPa at ambient temperature. The direct linear signals are accurate for very small pressure drops and flow rates, and the measurements are not sensitive to gas composition, thereby eliminating any need for gas-specific correction factors. The Inconel nickel alloy capacitance sensor is highly corrosion resistant, permitting use in difficult chemical environments. The Baratron manometer operates on either ±15 V d.c. or +24 V d.c. input voltage, and offers four different analog output signals in either uni-directional or bi-directional calibrations, making them suitable for use in a wide variety of processing systems. — MKS Instruments, Inc., Andover, Mass.