Flow Measurement Equipment
The flow measurement systems are divided into passive acoustic sensors mounted directly on piping section, or in a dedicated measurement cell. A remote electronic device (calculator) interrogates the sensors with ultra-low power pulses.
CRE: Mini-Blade Flow Calculator/Transmitter
The CRE is an all digital, ultrasonic time-of-flight (TOF) flow calculator and blind transmitter. It has been specifically designed to meet the need of compact integration into process tools and skids. The IP20 type package has a thermal management plane to allow it to be installed in the existing control electronics enclosure to save space, cost and simplify construction. The device interrogates the sensors in the flow path using ultra-low power ultrasonic pulses and calculates the flight times to resolutions of 120 picoseconds. The transmitter segment can provide current loop or pules logic for connection to legacy PLC, as well as a digital output via a RS485 or CAN network, to connect to HMI or remote networks. The high update rate of the CRE allows it to measure smooth average flow rates in pulsating conditions caused by bellows, or diaphragm pumps. Besides flow rate, the calculator provides totalizing, fluid properties, and pump diagnostics over digital stream with compact 256-byte packets.
TWD: Corrosian-Resistant Wash-Down Transducer
TWD is a line of external sensors designed for the aggressive environment inside semiconductor and pharmacutical production processes. Clamping to the outside of existing PTFE or PFA tubing, the risk of leaks is eliminated. There is no need to interrupt the process. The IP67 compliant, metal-free design is optimized for use in confined spaces, and has an ergonomic mounting method specific to the challenges of clean room operation. It is ideal for concentrated acids and etching solutions found in wet-bench processes. It is normally combined with the CRE transmitter to form the Extreme Fluid Measurement System.