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Ultrasonic Clamp-On Flow Meters

ABLE Instruments have been at the forefront of ultrasonic clamp-on flow measurement for over 30 years. With decades of experience in specifying and supporting non-intrusive metering systems, we offer an expert-led portfolio of solutions for both liquid and gas flow applications.

Our first of our flagship products is the Micronics UX5000 ATEX Clamp-On Flow Meter, a high-performance, hazardous area-certified ultrasonic flow meter for liquid measurement in demanding industrial environments. ABLE are the exclusive UK representative for Micronics across the UK and Ireland, ensuring expert application support, technical guidance, and fast delivery. The UX5000 is ideal for petrochemical, water treatment, and process industries where precision and reliability are paramount.

Also available is the ABLE SlugMaster, part of our premium Master Series range. This specialist clamp-on system is engineered to maintain flow measurement integrity in the presence of entrained gas or slug flow conditions. Designed to tackle the toughest flow challenges, the SlugMaster is trusted by process operators where conventional clamp-on meters fall short.

Have a particular project in mind? We’d welcome a call on +44 (0) 1189 169 420 or alternatively, email us now at info@247able.com

ABLE have been at the forefront of Clamp-On Technology for over 30 years. Learn more.

Our broader range includes standard clamp-on ultrasonic flow meters from Micronics, including portable and fixed-installation options suitable for clean or dirty liquids. These provide a cost-effective, low-maintenance alternative to inline metering, with quick installation and no disruption to process conditions.

For non-intrusive gas flow applications, we offer Siemens clamp-on systems including the SITRANS FS230 (Gas) and FS‑DSL11. These provide accurate, zero-pressure-loss metering of natural gas and process gases in remote or hazardous installations. While less common than liquid clamp-on systems, these gas-compatible devices offer a practical solution for retrofit or specialist use cases where inline metering is not viable.

From industrial liquids to process gases, ABLE can advise on the most suitable clamp-on flow metering solution for your application.

Micronics ultrasonic flow meters are widely used in Energy Management and retrofit Building Services markets worldwide, to help reduce energy consumption and monitor water use. Micronics’ extensive range of products include Ultrasonic Clamp-On Flow Meters, Portable & Fixed Liquid Flow Measurement Meters, Energy Meters for heating and cooling applications and in-line MID approved ultrasonic energy and water flow meters for direct billing applications. Flow sensors detect and then measure flow rates from the outside of the pipework, without any interruption to flow or process. In addition, for Process or Water industry applications, Micronics provide Clamp-On, full pipe or ‘Doppler’ open channel flow meters for contaminated or dirty liquid flows.

Measurement Principle: Micronics meters use a cross-correlation transit time algorithm to provide accurate flow measurements. An ultrasonic beam of a given frequency is generated and applied to the transducer crystals. This transmission goes first from the downstream transducer to the upstream transducer as shown in the upper half of Figure 1 (below). The transmission is then made in the reverse direction, being sent from the upstream transducer to the downstream transducer as shown in the lower half of Figure 1. The speed at which the ultrasound is transmitted through the liquid is increased slightly by the velocity of the liquid through the pipe. The subsequent time difference T1-T2 is directly proportional to the liquid flow velocity.