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Ultrasonic Flow Meter

Non-Intrusive & Inline Ultrasonic Flow Measurement for Industrial Pipelines

Flow Measurement Using Ultrasonic Sound-Wave Technology

The FlowDo Ultrasonic Flow Meter uses ultrasonic measurement technology to determine fluid flow within compatible pipelines. Depending on the selected configuration, the instrument can provide fixed, inline or non-intrusive flow measurement without relying on a mechanical turbine rotor.

FlowDo Ultrasonic Flow Meter for industrial pipeline flow measurement
ULTRASONIC Technology
FLOW Measurement
NO TURBINE ROTOR Moving Parts
INDUSTRIAL PIPELINES Application
Product Overview

Ultrasonic Flow Measurement for Industrial Pipelines

The FlowDo Ultrasonic Flow Meter determines process flow using ultrasonic signals transmitted through or across the flowing fluid.

The FlowDo Ultrasonic Flow Meter determines process flow using ultrasonic signals transmitted through or across the flowing fluid. Depending on the selected ultrasonic measurement technology, the instrument analyses characteristics such as ultrasonic travel time or signal behavior to determine fluid velocity.

The measured velocity is then used with the configured pipe dimensions to determine the corresponding volumetric flow rate. Ultrasonic technology does not require a rotating turbine measurement element, making it suitable for a variety of industrial flow-monitoring applications when pipe, fluid and installation conditions are appropriate.

Selection Guidance: Final product selection should consider pipe size, pipe material, wall thickness, liner, fluid characteristics, flow range, temperature, pressure, installation type and required output.

Important Technology Distinction

Please note that an Ultrasonic Flow Meter is distinct from an Ultrasonic Level Transmitter:

  • Ultrasonic Flow Meter: Measures fluid velocity and volumetric flow rate inside industrial pipes.
  • Ultrasonic Level Transmitter: Measures air-gap distance and liquid height inside tanks, sumps, or open channels.
  • Electromagnetic Flow Meter: Uses Faraday's Law for conductive liquids with magnetic coils.
  • Turbine Flow Meter: Uses a mechanical rotating rotor driven by fluid velocity.
  • Vortex Flow Meter: Uses alternating vortices formed downstream of a bluff body.
Instrumentation Capabilities

Key Features

Engineered for dependable flow sensing across industrial utility and process piping systems.

๐Ÿ“ก

Ultrasonic Measurement

Uses ultrasonic sound-wave measurement technology for compatible flow applications.

โš™

No Turbine Rotor

Flow measurement does not depend on a rotating turbine rotor or mechanical bearings.

โšก

Continuous Flow Monitoring

Provides continuous process-flow information within the supported operating range.

๐Ÿงฒ

Non-Intrusive Option

Clamp-on configurations can measure flow from outside compatible pipes without cutting.

๐Ÿ–ฅ

Digital Indication

Applicable configurations provide local digital display of momentary rate and volume.

๐Ÿ“Š

Flow Totalization

Supported transmitter configurations include accumulated volumetric flow totalizers.

โŒ

Process Output

Supported configurations provide signals for remote monitoring and automation systems.

๐Ÿ“

Multiple Pipe Configurations

Available sensor configurations can be selected according to supported pipe sizes and installation requirements.

Operational Advantages

Flexible Ultrasonic Flow Measurement

Engineered for reliable flow measurement with maximum operational versatility.

01 โ€” Durability

No Turbine Rotor

No mechanical rotating measurement element is required, eliminating mechanical rotor wear in compatible media.

02 โ€” Versatility

Clamp-On Capability

Where supported, transducers can measure flow externally without process penetration or line disruption.

03 โ€” Reliability

Continuous Measurement

Provides ongoing process-flow information with stable electronic signal processing.

04 โ€” Visibility

Remote Monitoring

Compatible outputs can send flow information directly to plant monitoring and control equipment.

05 โ€” Maintenance

Retrofit Potential

Clamp-on models can be installed in suitable existing piping systems without plant downtime.

06 โ€” Automation

Automation Integration

Supported outputs integrate seamlessly with compatible PLC, SCADA, and telemetry systems.

Technical Configuration

Product Specifications

Comprehensive technical specification architecture for FlowDo Ultrasonic Flow Meters.

Brand / Manufacturer FlowDo
Product Name FlowDo Ultrasonic Flow Meter
Primary Category Flow Meters
Technology Ultrasonic Flow Measurement
Measurement Principle According to selected model (Transit-Time / Doppler)
Measured Parameter Flow / Volumetric Flow Rate
Installation Type According to selected configuration (Clamp-On / Inline)
Pipe Size Range Model / application dependent
Flow Range According to selected model
Velocity Range According to selected model
Accuracy According to selected model
Repeatability According to selected model
Pipe Material Compatibility According to selected configuration (e.g. carbon steel, stainless steel, PVC, copper, ductile iron)
Wall Thickness According to application / configuration
Pipe Liner Compatibility According to selected model requirements
Pipe Condition Acoustically sound, free of heavy interior scale or flaking
Fluid Compatibility Application dependent (clean liquids for Transit-Time; particle/bubble-bearing for Doppler)
Process Temperature Model dependent
Process Pressure Model dependent (for inline configurations; pipe-rating dependent for clamp-on)
Transducer Type According to selected model
Transducer Mounting Clamp-On / Inline (according to selected model)
Cable Length According to selected configuration
Transducer Temperature Rating According to selected transducer model
Display According to selected configuration (digital display available)
Flow Totalizer According to selected configuration
Analog Output According to selected configuration (e.g. 4โ€“20 mA)
Pulse / Frequency Output According to selected configuration
Digital Communication According to selected configuration (e.g. RS485 Modbus where supported)
Power Supply According to selected model
Ambient Temperature According to selected transmitter model
Enclosure Protection According to selected model
Primary Application Industrial Pipeline Flow Measurement
Technical Specifications Note: Final specifications depend on the selected FlowDo Ultrasonic Flow Meter model, pipe dimensions, fluid properties, and installation type. Contact FlowDo application engineering for technical selection.
Acoustic Physics

Flow Changes the Ultrasonic Travel Time

The transit-time differential is directly proportional to the average fluid velocity along the acoustic path.

NO FLOW: t_up โ‰ˆ t_down Stationary fluid: Upstream and downstream travel times are identical
โ†’
FLOW PRESENT: t_down < t_up Moving fluid: Downstream travels faster than upstream (ฮ”t)

The Transit-Time Concept

When fluid is stationary, sound travels between Transducers A and B at identical speeds in both directions. When the fluid begins moving, fluid velocity assists the downstream acoustic wave while retarding the upstream acoustic wave:

ฮ”t (Transit-Time Difference) โ†“
Fluid Velocity (v) โ†“
Volumetric Flow Rate (Q = v ร— A)

The exact relationship is determined by the meter geometry, pipe configuration and instrument calibration.

Doppler Ultrasonic Flow Measurement

Doppler ultrasonic flow measurement operates on a different acoustic principle. It detects frequency changes in reflected ultrasonic signals from suitable suspended particles or bubbles moving with the process fluid.

Doppler Signal Path:
TRANSDUCER โ†’ ULTRASONIC SIGNAL โ†’ MOVING PARTICLE / BUBBLE โ†’ REFLECTED SIGNAL โ†’ FREQUENCY SHIFT โ†’ FLOW VELOCITY
Technology Note: Transit-Time and Doppler measurement are distinct physical principles. Clear-fluid transit-time and particle-based Doppler systems are not interchangeable; suitability depends on the selected FlowDo model and fluid condition.
Non-Intrusive Installation

Measure Flow from Outside the Pipe

Clamp-on ultrasonic transducers are mounted on the outside surface of a compatible pipe. This allows flow measurement without inserting a mechanical sensor into the fluid stream.

Clamp-On Configuration

External Pipe Mounting Advantages

Clamp-on sensors attach directly to the exterior wall of the pipeline using clamping fixtures and acoustic coupling compound. The sound waves penetrate the pipe wall, traverse the fluid, and return through the opposite wall.

  • No process penetration: No pipe cutting, welding, drilling, or process shutdown required
  • No rotating element in flow path: Eliminates mechanical rotor friction and moving parts
  • Zero inline pressure loss: Does not cause any additional hydraulic pressure drop
  • Retrofit potential: Well-suited for existing plants, temporary audits, and clean pipelines
Inline Configuration

Inline Ultrasonic Flow Measurement

Inline ultrasonic flow meters integrate the ultrasonic measuring section directly into the pipeline with factory-calibrated geometry.

This configuration provides known acoustic path lengths and controlled sensor positioning while using ultrasonic sound-wave rather than mechanical rotor measurement.

Configuration Notice: Clamp-on and inline configurations serve different operational needs. Selection depends on pipeline access, pipe material, required accuracy, and process pressure ratings.
Transducer Mounting

Transducer Mounting Arrangements

Educational overview of standard acoustic transducer mounting methods used in clamp-on transit-time measurement.

V-Mount

V-Method Mounting

Transducers are mounted on the same side of the pipe. Signals reflect off the opposite pipe wall before reaching the receiving transducer. Typically used for small-to-medium pipe diameters.

Z-Mount

Z-Method Mounting

Transducers are installed on opposite sides of the pipe. The acoustic wave passes directly across the fluid path once. Recommended for large pipelines, high attenuation fluids, or lined pipes.

W-Mount

W-Method Mounting

Multiple acoustic reflections through the pipe walls increase the transit-time path length for enhanced resolution in very small pipeline diameters where supported.

Mounting Guidance: Mounting method depends on pipe diameter, pipe wall thickness, material, fluid attenuation, and the selected FlowDo transducer specification.
Pipe Compatibility

Pipe Material Matters for Ultrasonic Measurement

Ultrasonic signals must travel through the pipe wall and process fluid in clamp-on applications. Pipe material and acoustic properties therefore influence transducer selection and configuration.

Acoustic Medium

Pipe Material Compatibility

Compatible pipe materials may include carbon steel, stainless steel, PVC, copper, and ductile iron according to selected configuration. Acoustic impedance determines sound-wave transmission efficiency.

Pipe Geometry

Accurate Pipe Data

Pipe outside diameter and wall thickness are essential configuration parameters in clamp-on ultrasonic measurement because they directly dictate the internal acoustic travel path.

Liners

Consider Internal Pipe Liners

Internal liners (such as cement mortar, rubber, or epoxy) influence acoustic propagation and must be configured where present in the pipeline.

Coupling

Good Acoustic Coupling

Clamp-on transducers require effective acoustic coupling compound between transducer face and pipe exterior to eliminate air gaps and ensure maximum signal transfer.

Pipe Wall Thickness Significance

In clamp-on systems, the ultrasonic beam refracts according to Snell's Law as it crosses from the transducer wedge into the pipe wall and then into the process fluid.

Use actual measured pipe wall thickness rather than nominal pipe schedules whenever possible to achieve optimal flow-calculation accuracy.

Coupling Compound Application

Acoustic energy cannot cross an air boundary. A continuous layer of coupling gel, grease, or acoustic pad is applied between the transducer face and the clean pipe surface.

Use the installation method and coupling material specified for the selected FlowDo transducer.

Installation Conditions

Stable Flow Conditions Improve Measurement Quality

Elbows, pumps, control valves and piping disturbances can alter the flow velocity profile. Following installation guidelines supports dependable measurement.

Correct Transducer Positioning

Transducer spacing and mounting position depend on pipe dimensions, fluid properties, and selected ultrasonic measurement configuration. For horizontal pipelines, transducers are typically mounted at the 3 o'clock and 9 o'clock positions to avoid sediment at the bottom and gas bubbles at the top.

Straight-Run Guidance: Follow the upstream and downstream straight pipe run requirements specified for the selected FlowDo Ultrasonic Flow Meter model.
Fluid Condition Influences Ultrasonic Signals

For transit-time measurement, excessive entrained gas, bubbles, or heavy slurries can scatter and attenuate acoustic sound pulses. For Doppler configurations, a suitable concentration of reflective particles or bubbles is required.

Maintain a Suitable Filled-Pipe Condition

For liquid ultrasonic flow measurement, the pipeline cross-section must remain completely filled so that acoustic waves travel through liquid rather than air pockets.

Good Condition Full Liquid Path

Liquid completely fills pipe bore. Acoustic wave travels across full path uninterrupted.

Review Required Partially Filled / Air Pocket

Air at top of pipe blocks or refracts acoustic beam. Install in vertical rising pipe if needed.

Review Ultrasonic Signal Quality During Installation

Compatible transmitter configurations provide diagnostic signal indicators (such as signal strength, transmission ratio, and acoustic quality value) to assist during transducer positioning and commissioning.

Instrumentation Architecture

Fixed or Portable Ultrasonic Flow Measurement?

Choosing between permanent pipeline monitoring and temporary mobile flow surveys.

Fixed Ultrasonic Flow Meter

Installation Type
Permanent / continuous monitoring configuration.
Primary Purpose
Ongoing process-flow measurement and plant telemetry.
Integration
Connects to automation via 4โ€“20 mA, pulse, or digital communication.
Typical Use
Continuous industrial water, cooling water, and process pipelines.

Portable Ultrasonic Flow Meter

Installation Type
Temporary / portable hand-held measurement setup.
Primary Purpose
Plant surveys, flow meter verification, audit & troubleshooting.
Integration
Internal rechargeable battery, on-board logging, hand-held display.
Typical Use
Field testing, energy audits, balancing checks, and diagnostics.
Discuss Portable Ultrasonic Options โ†’
Applications

Industrial Process Applications

Practical ultrasonic flow measurement across water treatment, utilities, and process facilities.

Water Treatment

Raw water intake, filtration monitoring, and treated water distribution lines.

STP / ETP Facilities

Effluent monitoring and industrial treated discharge where conditions meet model criteria.

Industrial Water

Process cooling loops, boiler feedwater pipelines, and general plant water headers.

Cooling Water

Chiller pipelines, condenser water loops, and central refrigeration circuits.

Large Pipelines

Water transmission mains where non-intrusive clamp-on avoids expensive line cutting.

Retrofit Flow Monitoring

Adding flow telemetry to operational pipelines without shutting down process lines.

HVAC / Chilled Water

Commercial building utility auditing, chilled water metering, and hydronic balancing.

Chemical Processing

Compatible liquid chemicals where non-intrusive clamp-on avoids wetted material attack.

Energy & Utility Systems

Utility consumption audits, pumping station efficiency checks, and sub-metering.

Process Plants

General compatible pipeline-flow monitoring across diverse manufacturing sectors.

Fluid Suitability

Is Ultrasonic Flow Measurement Right for the Application?

Evaluating when ultrasonic technology is an ideal fit versus when an alternative flow principle is recommended.

Good Application Fit

Compatible Process Conditions

  • โœ“ Compatible liquid: Acoustically transmissive fluid
  • โœ“ Known pipe dimensions: Specified outside diameter and wall thickness
  • โœ“ Suitable pipe material: Carbon steel, stainless steel, PVC, copper, ductile iron
  • โœ“ Stable full-pipe conditions: Liquid completely filling pipeline
  • โœ“ Appropriate flow range: Operating within specified velocity limits
Application Review Required

Alternative Technology Recommended

  • โœ• Heavy aeration / air pockets: Bubbles scatter transit-time sound pulses
  • โœ• Two-phase flow: Liquid/gas or liquid/heavy-solid mixtures
  • โœ• Unknown wall thickness / corrosion: Severe internal flaking impairs signal
  • โœ• Poor pipe surface condition: Severe external rust or scale
  • โœ• Partially filled pipe: Incomplete acoustic coupling

Another flow technology (such as FlowDo Electromagnetic, Turbine, or Vortex Flow Meters) may be more appropriate when process conditions do not suit ultrasonic sound transmission.

Technology Comparison

Ultrasonic or Electromagnetic Flow Meter?

Choosing between sound-wave signal propagation and electromagnetic induction flow measurement.

Ultrasonic Flow Meter

Principle
Ultrasonic signal propagation.
Conductivity Required
No inherent conductivity requirement (measures non-conductive fluids).
Installation
Clamp-on (non-intrusive) or inline depending on model.
Moving Measurement Parts
No.
Key Selection Factors
Pipe, fluid, acoustic conditions, flow range.

Electromagnetic Flow Meter

Principle
Electromagnetic induction (Faraday's Law).
Conductivity Required
Yes (electrically conductive liquids only).
Installation
Typically inline flanged.
Moving Measurement Parts
No.
Key Selection Factors
Conductivity, liner & electrode compatibility, full pipe.
View Electromagnetic Flow Meter โ†’
Acoustic vs Mechanical

Ultrasonic or Turbine Flow Meter?

Comparing non-mechanical sound transmission with rotor-based volumetric flow measurement.

Ultrasonic Flow Meter

Measurement
Ultrasonic sound signals.
Mechanical Rotor
No.
Process Interaction
Clamp-on avoids sensor contact with fluid.
Application Considerations
Pipe material, fluid acoustic properties, wall thickness.

Turbine Flow Meter

Measurement
Mechanical rotor speed driven by flow.
Mechanical Rotor
Yes (rotor spins inside fluid stream).
Process Interaction
Rotor and bearings directly exposed to fluid.
Application Considerations
Fluid cleanliness, viscosity, bearing condition.
View Turbine Flow Meter โ†’
Sound Wave vs Bluff Body

Ultrasonic or Vortex Flow Measurement?

Comparing acoustic wave propagation with bluff-body vortex shedding technology.

Ultrasonic Flow Meter

Principle
Ultrasonic sound wave propagation.
Internal Obstruction
None for clamp-on configuration.
Installation
Clamp-on or inline depending on model.

Vortex Flow Meter

Principle
Vortex shedding (Kรกrmรกn vortex street).
Internal Obstruction
Stationary bluff body inside pipe bore.
Installation
Inline flanged or wafer.
View Vortex Flow Meter โ†’
Four-Technology Comparison

Compare Ultrasonic, Electromagnetic, Turbine & Vortex Technologies

Educational comparison across all four core industrial flow principles.

Acoustic Sound Path

Ultrasonic Flow Meter

Principle
Sound-wave transit-time difference (ฮ”t).
Moving Rotor
No mechanical moving parts.
Conductivity Required
No (measures non-conductive & pure fluids).
Clamp-On Possible
Yes (external non-intrusive mounting available).
Best Considered When
Non-intrusive retrofit, large pipes, or non-conductive clean liquids.
Electromagnetic Induction

Electromagnetic Flow Meter

Principle
Electromagnetic induction (Faraday's Law).
Moving Rotor
No (completely unobstructed flow tube).
Conductivity Required
Yes (electrically conductive liquids only).
Clamp-On Possible
No (inline flanged or wafer installation).
Best Considered When
Conductive liquids, water, wastewater, slurries, and chemicals.
View Electromagnetic Flow Meter โ†’
Mechanical Rotation

Turbine Flow Meter

Principle
Fluid velocity drives precision rotor rotation.
Moving Rotor
Yes (precision bladed rotor in fluid path).
Conductivity Required
No (suitable for fuels, solvents, water).
Clamp-On Possible
No (inline flanged or threaded tube).
Best Considered When
Clean, low-viscosity liquids requiring high dynamic response.
View Turbine Flow Meter โ†’
Vortex Shedding

Vortex Flow Meter

Principle
Kรกrmรกn vortex street shedding frequency.
Moving Rotor
No (stationary bluff body obstruction).
Conductivity Required
No (liquid, gas, steam compatible).
Clamp-On Possible
No (inline flanged or wafer installation).
Best Considered When
Steam lines, industrial compressed gases, and hot utilities.
View Vortex Flow Meter โ†’
Industrial Flow Meter Technology Comparison Matrix
Measurement Attribute Ultrasonic Flow Meter (This Product) Electromagnetic Flow Meter Turbine Flow Meter Vortex Flow Meter
Measurement Principle Sound waves (acoustic transit time / Doppler) Electromagnetic induction (Faraday's Law) Flow-driven rotor rotation Vortex shedding (Kรกrmรกn vortex street)
Moving Measurement Parts No moving parts No moving parts Yes (mechanical rotor & bearings) No moving parts (stationary bluff body)
Conductivity Required No inherent requirement (measures demineralized & pure water) Yes (electrically conductive liquids only) No inherent requirement No inherent requirement
Clamp-On Non-Intrusive Option Yes (available on supported configurations) No (inline only) No (inline only) No (inline only)
Process Penetration Can be none (for clamp-on models) Inline wetted liner & electrodes Inline wetted rotor & supports Inline wetted bluff body
Added Pressure Loss Zero for clamp-on (no bore obstruction) Zero (full-bore unobstructed flow) Minor pressure loss across rotor Minor pressure loss past bluff body
Primary Process Media Acoustically transmissive liquids in full pipes Conductive liquids, water, wastewater, slurries Compatible clean low-viscosity liquids Compatible liquid, gas, or steam
Primary Selection Focus Pipe access, acoustic transmission, wall thickness Fluid conductivity, liner & electrode compatibility Fluid cleanliness, viscosity, bearing maintenance Flow velocity threshold, vibration, piping run

Technology selection depends on process medium, pipe conditions, flow range, pressure, temperature, installation access and required measurement performance.

System Integration

From Pipeline Flow to Process Monitoring

Converting acoustic travel time into momentary flow rates, totalized volume, and remote telemetry.

๐Ÿ“ก FlowDo Ultrasonic Flow Meter Transducers Detect Acoustic Signal Propagation
โ†“
Timing & Signal Processing Transit-Time Difference (ฮ”t) โ€ข Fluid Velocity
โ†“
Transmitter Electronics Local Digital Indication โ€ข Totalized Volume โ€ข 4โ€“20 mA / Pulse / RS485
โ†“
Local Process Indicator / Totalizer FlowDo FDI-96 Digital Flow Indicator / Panel Meter
PLC / DCS Control System Water Treatment Automation & Pumping Skid Control
โ†“
FlowDo IoT Cloud & Telemetry Live web dashboards, historical audits, water accounting & automated alarms
Product Configuration

Configure the Ultrasonic Flow Meter for Your Pipeline

Provide key pipeline and fluid parameters to identify a suitable FlowDo Ultrasonic Flow Meter configuration.

Parameter 01

Pipe Size

Actual outside diameter and pipeline standard.

Parameter 02

Pipe Material

Carbon steel, stainless steel, PVC, copper, or ductile iron.

Parameter 03

Wall Thickness

Actual measured wall thickness of the pipe.

Parameter 04

Pipe Liner

Internal lining material and thickness where present.

Parameter 05

Process Fluid

Fluid type, cleanliness, and acoustic transmissive properties.

Parameter 06

Flow Range

Minimum, normal, and maximum operating flow rates.

Parameter 07

Process Temperature

Operating and maximum process temperature.

Parameter 08

Installation Type

Clamp-on (non-intrusive) or inline configuration.

Parameter 09

Required Output

4โ€“20 mA, pulse, or digital communication interface.

Parameter 10

Power Supply

Available AC or DC auxiliary power source.

Instrumentation Ecosystem

Related Flow Measurement Products

Explore complementary FlowDo flow meters and panel indication instruments.

FlowDo Electromagnetic Flow Meter
Flow Meters

Electromagnetic Flow Meter

Industrial electromagnetic flow meter for accurate volumetric measurement of conductive liquids with zero moving parts.

View details & specs โ†’
FlowDo Turbine Flow Meter
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Turbine Flow Meter

Industrial turbine flow meter for responsive volumetric flow measurement of compatible clean liquids using precision rotor mechanics.

View details & specs โ†’
FlowDo Vortex Flow Meter
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Vortex Flow Meter

Industrial vortex flow meter using vortex-shedding technology for compatible process-flow applications without moving parts.

View details & specs โ†’
FlowDo FDI-96 Digital Flow Indicator
Other

Digital Flow Indicator

FDI Series High-accuracy panel meter for displaying instantaneous flow rates and totalized volume from compatible pulse and 4โ€“20 mA inputs.

View details & specs โ†’
Frequently Asked Questions

Ultrasonic Flow Meter FAQs

Answers to common technical questions regarding industrial ultrasonic sound-wave flow measurement.

What is an Ultrasonic Flow Meter?

An ultrasonic flow meter determines fluid flow using ultrasonic sound-wave measurement rather than a rotating mechanical turbine.

How does a transit-time ultrasonic flow meter work?

It compares ultrasonic travel times in the upstream and downstream directions. The difference is related to fluid velocity and therefore flow.

What is a clamp-on ultrasonic flow meter?

A clamp-on configuration uses transducers mounted externally on a compatible pipe to perform flow measurement without inserting the sensor into the process fluid.

Does an ultrasonic flow meter have moving parts?

The ultrasonic measurement principle does not require a rotating turbine measurement element.

Can it measure water?

Yes, suitable water applications can be measured when pipe, fluid and operating conditions meet the requirements of the selected FlowDo model.

Does pipe material matter?

Yes. Pipe material, diameter, wall thickness and liners can influence ultrasonic signal propagation and must be considered during configuration.

Why is wall thickness required?

In clamp-on systems, wall thickness affects the ultrasonic signal path through the pipe and is an important configuration parameter.

Can the sensor be installed without cutting the pipe?

Clamp-on FlowDo configurations can provide non-intrusive measurement where confirmed by the selected product.

Can it measure dirty water?

Suitability depends on the ultrasonic technology. Excessive bubbles or solids can affect transit-time measurement, while some Doppler systems rely on reflective particles or bubbles. Confirm the selected FlowDo technology.

What is the difference between ultrasonic and electromagnetic flow meters?

Ultrasonic meters use sound waves, while electromagnetic meters use electromagnetic induction and require a sufficiently conductive liquid.

What is the difference between ultrasonic and turbine flow meters?

Ultrasonic flow measurement does not require a turbine rotor, while turbine meters use a rotating mechanical element.

Can it provide 4โ€“20mA?

4โ€“20 mA should only be listed for configurations confirmed to support it.

Does it support Modbus?

Modbus or other communication protocols should only be shown where confirmed for the selected FlowDo model.

Can it provide totalized flow?

Totalization should only be shown where the selected transmitter supports it.

Can it connect to PLC or SCADA?

Yes, where the selected meter output/communication interface is compatible with the automation system.

Can it connect to FlowDo IoT Cloud?

Only claim IoT Cloud integration where a compatible FlowDo telemetry/interface configuration exists.

How do I select the correct transducer?

Selection depends on pipe diameter, pipe material, wall thickness, fluid, temperature and installation configuration.

How do I select the correct ultrasonic flow meter?

Provide pipe size, pipe material, wall thickness, fluid, flow range, temperature, installation requirement and required output.

Need Help Selecting an Ultrasonic Flow Meter?

Configure the Right Ultrasonic Flow Meter for Your Pipeline

Share your pipe size, material, wall thickness, process fluid, minimum/normal/maximum flow, temperature, installation requirement and required output with FlowDo to identify a suitable ultrasonic flow-meter configuration.

For faster selection, provide: Pipe Size โ€ข Pipe Material โ€ข Wall Thickness โ€ข Pipe Liner โ€ข Process Fluid โ€ข Minimum Flow โ€ข Normal Flow โ€ข Maximum Flow โ€ข Process Temperature โ€ข Installation Type โ€ข Required Output

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