Bronkhorst ES-FLOW Ultrasonic Flow Meters

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Bronkhorst’s ES-FLOW Ultrasonic Flow Meters are for low flow rates of water, additives and other liquid substances.

The flow meters measure volume flow from 2 to 1500 mL/min with high precision, linearity and low-pressure drop, using ultrasound in a small-bore tube.

The instruments are liquid-independent due to a measuring principle in which the actual sound velocity is accounted for in the flow calculations.

The combination of a straight sensor tube with zero dead volume makes the flow meter self-draining. The flow meter with orbital TIG-welded flanges is CIP or SIP cleanable and meets 3-A sanitary standards for hygienic applications. Wetted parts are made of stainless steel, while the exterior design is rated to IP66 or IP67.

The local user interface is touchscreen with a TFT display to operate and readout the instrument.

For remote operation, Bronkhorst added various Ethernet-based fieldbuses to the range of analog and digital communication options. The onboard PID controller can drive a control valve or pump, enabling users to establish a complete, compact control loop.

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