Flow Technology, Inc. (FTI), a manufacturer of precision flow measurement instruments, systems and calibrators, introduces the QCT Series of in-line ultrasonic flow meters for use in low viscosity liquid applications. The compact QCT Series can be used in a wide range of industries. The meter’s construction makes it suitable for many high purity and corrosive fluids. Typical applications include water treatment for boilers and cooling towers, clean-in-place (CIP) systems, mechanical seal flushing/cooling, high purity water systems, process water, cooling loops, reverse osmosis (RO) systems and small line injection systems.
High accuracy and repeatability are reportedly achieved through the measurement section within the QCT Series meter where flow is conditioned and Delta T measured along the meter’s axis. The meter bases its operation on measuring the time difference of an ultrasonic wave traveling with and against the flowing medium. The time difference is directionally proportional to the fluid’s flow rate.
The QCT has no moving parts, non-wetted sensors and there is nothing in the flow stream that will cause an obstruction to the flow path. The meter is available in sizes of 1/8 inch to 1 inch, accurate to +/- 0.5% of reading plus zero stability and repeatability is +/- 0.2% over 10:1 calibration range, according to the company. It has a 0.035 to 70 GPM flow range, 14°F to 176°F (-10°C to 80°C) temperature range and analog, scaled frequency and Modbus RTU outputs.
