Bronkhorst ES-FLOW Ultrasonic Flow Meters

Bronkhorst has released its new generation of ES-FLOW Ultrasonic Flow Meters for low flow rates of water, additives and other liquid substances.

The flow meters measure volume flow from 2 up to 1500 mL/min with higher precision, high linearity and low pressure drop, using ultrasound in a small-bore tube. The instruments are liquid-independent, thanks to the unique measuring principle in which the actual sound velocity is accounted for in the flow calculations. Thanks to the combination of a straight sensor tube with zero dead volume the flow meter is self-draining.

The flow meter with orbital TIG-welded flanges is CIP cleanable, and now meets 3-A sanitary standards for hygienic applications. Wetted parts are made of stainless steel, the exterior design is rated to IP66 or IP67. The local user interface is a capacitive touchscreen with a TFT display to operate and readout the instrument. For remote operation, Bronkhorst added a variety of Ethernet based fieldbuses to the already available range of analog and digital communication options. The on-board PID controller can be used to drive a control valve or pump, enabling users to establish a complete, compact control loop.

Typical applications for the new low-flow liquid flow meters and controllers can be found in food, beverage and pharma (eg, additives, sterilisation of packages); medical and chemical (eg, catalysts, reagents); and many other markets that require precision fluid-handling.