Ultrasonic Flow Meters

Ultrasonic flow meters use cutting-edge technology to precisely gauge the velocity of gas coursing through pipes. These meters employ transducers strategically positioned on opposite sides of the pipe. One transducer emits ultrasonic waves across the pipe, while its counterpart catches these waves. By timing the waves' journey upstream and downstream, these meters can accurately determine gas velocity. This data, when combined with the pipe's cross-sectional area, facilitates the calculation of gas flow rate. Renowned for their non-intrusive nature and versatility, ultrasonic flow meters find applications in various fields, including natural gas distribution, compressed air systems, and HVAC installations. Their appeal lies in their remarkable accuracy, wide turndown ratios, and low maintenance requirements, making them a preferred choice for gas flow measurement across industries. For further assistance and expert advice on selecting the right ultrasonic flow meter for your application, contact the product experts at Centro. They'll be glad to assist you.

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The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement.
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The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement.
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The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement.
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"The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement."
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"The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement."
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The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement.
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ICON UltraFlo 5000 Ultrasonic Flow Meter Sensor

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The UltraFlo® 5000 Flow Meter Sensor utilizes ultrasonic technology to measure both conductive and non-conductive liquids and is an excellent choice for very corrosive liquids such as strong acids and alkalies. The UltraFlo® 5000 has no moving parts and can measure pulsating, dosing and metering flow applications. All parts that contact the liquid are made of corrosion-resistant Polysulfone. The UltraFlo® 5000 is characterized by its high measurement accuracy, repeatability and guaranteed long-life performance.
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The Micronics PF333 is a Portable Clamp-On Ultrasonic Flow Meter engineered for quick, accurate, and non-invasive measurement of liquid flow within closed pipes. Using advanced cross correlation and transit time ultrasonic technology, the PF333 provides precise flow and velocity readings without interrupting operation. The clamp on ultrasonic design eliminates the need to cut pipes or stop processes, making it ideal for field service, testing, and industrial maintenance applications. Built for durability and simplicity, the PF333 Portable Ultrasonic Flowmeter features a clear graphic display, intuitive keypad, and multilingual interface. It delivers professional-grade performance in a rugged IP67-rated case designed for demanding field environments.
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Micronics - U1000-HM Clamp On BTU Meter

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The Micronics U1000-HM is a clamp on ultrasonic BTU energy meter that provides an affordable, non-invasive alternative to traditional in-line energy meters. Designed for energy management, sub-metering, and billing applications, it is ideal for heating and cooling systems in domestic, commercial, and district networks. Its non-intrusive installation saves both time and cost by eliminating the need to drain systems or cut into existing pipework. The system measures flow rate using ultrasound and temperature difference with PT100 sensors to calculate energy transfer. It displays real-time flow, power, and energy readings and can be integrated with Modbus or M-Bus communication networks for building and energy management systems.
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The Micronics U3300 is a permanently mounted clamp-on ultrasonic flow meter designed for accurate, non-invasive measurement of liquids in full pipes. It uses Transit Time / Cross-Correlation technology to provide precise bi-directional flow readings without cutting the pipe or contacting the fluid. This wall-mounted system delivers long-term, maintenance-free performance for process control, water management, and industrial monitoring applications. The wall-mounted electronics assembly integrates all operating controls, signal processing, and display functions within a robust IP65-rated enclosure. The front panel features a backlit graphic display and keypad for configuration, setup, and diagnostics. Programming is simple—select “Quickstart” and follow on-screen prompts in multiple languages. The display continuously shows flow rate, signal strength, totalized volume, and time/date, with directional indication and diagnostic feedback.
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The Micronics UF3300HM is a fixed Clamp-On Ultrasonic BTU Flow Meter designed for accurate and non-invasive measurement of both liquid flow and thermal energy in closed pipe systems. Using advanced transit-time ultrasonic technology and precision temperature sensors, the UF3300HM measures flow, temperature differential, and total energy transfer for heating and cooling applications. This permanent-mount system provides a maintenance-free alternative to inline heat meters, offering exceptional reliability and accuracy for hydronic energy monitoring, HVAC systems, and process energy management. Built on the proven UF3300 platform, the UF3300HM features the same robust IP65 wall-mounted display enclosure that houses all electronics, keypad, sensor connections, and output terminals. The clear graphical display shows flow rate, energy, signal strength, temperature differential, and system diagnostics at a glance. Configuration is simple using the multilingual QuickStart interface, guiding users through setup in English, German, French, or Spanish.
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The Micronics PF222 is a Portable Clamp-On Ultrasonic Flow Meter engineered for accurate, non-invasive measurement of liquid flow within closed pipes. Using advanced cross correlation and transit-time ultrasonic technology, the PF222 provides precise and repeatable readings without requiring pipe modification or flow interruption. The Clamp On sensors attach externally, making installation simple and eliminating contamination or shutdown risks. Compact and rugged, the PF222 Portable Ultrasonic Flowmeter is built for consistent performance in demanding industrial environments. It features a clear 64 x 240 pixel graphic display, intuitive 16-key control panel, and multilingual interface. Powered by a rechargeable NiMH battery offering up to 14 hours of operation, the PF222 can also run while charging via mains power. Housed in a durable polypropylene carrying case with foam inserts, it ensures protection and portability for reliable use in the field. The PF222 uses Clamp On transducers suitable for a wide range of pipe materials and diameters, making it ideal for clean liquids such as water, glycol mixtures, oils, and chemicals. It provides dependable results for both spot checks and continuous flow monitoring in process, manufacturing, and utility applications.
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The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement.
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The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement.
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The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement.
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"The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement."
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"The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement."
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The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement.
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ICON UltraFlo 5000 Ultrasonic Flow Meter Sensor

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The UltraFlo® 5000 Flow Meter Sensor utilizes ultrasonic technology to measure both conductive and non-conductive liquids and is an excellent choice for very corrosive liquids such as strong acids and alkalies. The UltraFlo® 5000 has no moving parts and can measure pulsating, dosing and metering flow applications. All parts that contact the liquid are made of corrosion-resistant Polysulfone. The UltraFlo® 5000 is characterized by its high measurement accuracy, repeatability and guaranteed long-life performance.
Configure Product

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The Micronics PF333 is a Portable Clamp-On Ultrasonic Flow Meter engineered for quick, accurate, and non-invasive measurement of liquid flow within closed pipes. Using advanced cross correlation and transit time ultrasonic technology, the PF333 provides precise flow and velocity readings without interrupting operation. The clamp on ultrasonic design eliminates the need to cut pipes or stop processes, making it ideal for field service, testing, and industrial maintenance applications. Built for durability and simplicity, the PF333 Portable Ultrasonic Flowmeter features a clear graphic display, intuitive keypad, and multilingual interface. It delivers professional-grade performance in a rugged IP67-rated case designed for demanding field environments.
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Micronics - U1000-HM Clamp On BTU Meter

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The Micronics U1000-HM is a clamp on ultrasonic BTU energy meter that provides an affordable, non-invasive alternative to traditional in-line energy meters. Designed for energy management, sub-metering, and billing applications, it is ideal for heating and cooling systems in domestic, commercial, and district networks. Its non-intrusive installation saves both time and cost by eliminating the need to drain systems or cut into existing pipework. The system measures flow rate using ultrasound and temperature difference with PT100 sensors to calculate energy transfer. It displays real-time flow, power, and energy readings and can be integrated with Modbus or M-Bus communication networks for building and energy management systems.
Configure Product

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The Micronics U3300 is a permanently mounted clamp-on ultrasonic flow meter designed for accurate, non-invasive measurement of liquids in full pipes. It uses Transit Time / Cross-Correlation technology to provide precise bi-directional flow readings without cutting the pipe or contacting the fluid. This wall-mounted system delivers long-term, maintenance-free performance for process control, water management, and industrial monitoring applications. The wall-mounted electronics assembly integrates all operating controls, signal processing, and display functions within a robust IP65-rated enclosure. The front panel features a backlit graphic display and keypad for configuration, setup, and diagnostics. Programming is simple—select “Quickstart” and follow on-screen prompts in multiple languages. The display continuously shows flow rate, signal strength, totalized volume, and time/date, with directional indication and diagnostic feedback.
Configure Product

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The Micronics UF3300HM is a fixed Clamp-On Ultrasonic BTU Flow Meter designed for accurate and non-invasive measurement of both liquid flow and thermal energy in closed pipe systems. Using advanced transit-time ultrasonic technology and precision temperature sensors, the UF3300HM measures flow, temperature differential, and total energy transfer for heating and cooling applications. This permanent-mount system provides a maintenance-free alternative to inline heat meters, offering exceptional reliability and accuracy for hydronic energy monitoring, HVAC systems, and process energy management. Built on the proven UF3300 platform, the UF3300HM features the same robust IP65 wall-mounted display enclosure that houses all electronics, keypad, sensor connections, and output terminals. The clear graphical display shows flow rate, energy, signal strength, temperature differential, and system diagnostics at a glance. Configuration is simple using the multilingual QuickStart interface, guiding users through setup in English, German, French, or Spanish.
Configure Product

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The Micronics PF222 is a Portable Clamp-On Ultrasonic Flow Meter engineered for accurate, non-invasive measurement of liquid flow within closed pipes. Using advanced cross correlation and transit-time ultrasonic technology, the PF222 provides precise and repeatable readings without requiring pipe modification or flow interruption. The Clamp On sensors attach externally, making installation simple and eliminating contamination or shutdown risks. Compact and rugged, the PF222 Portable Ultrasonic Flowmeter is built for consistent performance in demanding industrial environments. It features a clear 64 x 240 pixel graphic display, intuitive 16-key control panel, and multilingual interface. Powered by a rechargeable NiMH battery offering up to 14 hours of operation, the PF222 can also run while charging via mains power. Housed in a durable polypropylene carrying case with foam inserts, it ensures protection and portability for reliable use in the field. The PF222 uses Clamp On transducers suitable for a wide range of pipe materials and diameters, making it ideal for clean liquids such as water, glycol mixtures, oils, and chemicals. It provides dependable results for both spot checks and continuous flow monitoring in process, manufacturing, and utility applications.
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