Endress+Hauser Proline Prosonic Flow 93T Portable Ultrasonic Flowmeter
The Endress+Hauser Proline Prosonic Flow 93T is a portable ultrasonic flowmeter designed for temporary flow monitoring, field testing and verification of existing flow measurement points. It uses clamp-on ultrasonic sensors, allowing liquid flow to be measured from outside the pipe without cutting into or modifying the process piping.
The portable design makes Prosonic Flow 93T particularly useful when a permanent flowmeter is not required or when operators need an independent reference measurement to verify an existing flowmeter.
Portable Clamp-On Flow Measurement
Prosonic Flow 93T uses non-invasive clamp-on sensors mounted directly on the outside of the pipe.
This allows operators to perform temporary flow measurements without:
Cutting the pipeline
Draining the process
Interrupting production
Installing a permanent flowmeter
Adding additional process connections
The system is therefore well suited to temporary flow measurement, troubleshooting and verification measurements.
Liquid Flow Measurement
The Prosonic Flow 93T is designed specifically for liquid volume flow measurement.
It can measure pure or slightly contaminated liquids and is suitable for a wide variety of industrial liquid applications.
Typical applications include:
Water flow measurement
Process water monitoring
Cooling water measurement
Industrial liquid flow monitoring
Temporary flow verification
Existing flowmeter verification
Process troubleshooting
Pump performance testing
Wide Pipe Diameter Range
One of the major advantages of Prosonic Flow 93T is its exceptionally wide pipe size range.
The clamp-on sensors can be used on pipes from:
DN 15 to DN 4000 (½ to 160 in).
This makes the portable flowmeter suitable for both relatively small process pipes and very large pipelines where installing a permanent inline flowmeter may be expensive or impractical.
Non-Invasive Measurement
Because the sensors are installed externally, Prosonic Flow 93T provides non-invasive flow measurement.
The ultrasonic signal passes through the pipe wall and interacts with the flowing liquid, allowing flow velocity and volume flow to be determined without direct contact with the process medium.
This is particularly valuable for:
Existing pipelines
Pressurized systems
Large-diameter pipes
Temporary measurement locations
Systems where process shutdown is not possible
Flowmeter Verification
A key application of the Prosonic Flow 93T is verification of existing flowmeters.
The portable instrument can be temporarily installed near an existing flowmeter and used as an independent reference measurement. Operators can then compare the measured values to identify potential deviations or performance issues.
This makes Prosonic Flow 93T useful for:
Flowmeter verification
Instrument troubleshooting
Preventive maintenance
Commissioning checks
Measurement comparison
Process optimization
Battery-Powered Operation
Prosonic Flow 93T operates independently of mains power using an integrated battery, making it suitable for field measurements at locations where a permanent power supply is unavailable.
The portable power supply allows engineers and technicians to move the instrument between different measurement points throughout a facility.
Integrated USB Data Logging
The instrument features an integrated data logger and supports simple data transfer using a USB stick without additional software.
This makes it convenient to collect field measurement data and transfer the results for further analysis or documentation.
The system is therefore well suited for maintenance teams and engineers who need to perform temporary measurements and document results.
Wide Liquid Temperature Range
Depending on the selected sensor configuration and pipe diameter, Prosonic Flow 93T supports liquid temperatures up to:
+170 °C (338 °F).
The specified temperature ranges include:
DN 15–65: -40 to +150 °C
DN 50–300: -40 to +170 °C
DN 100–4000: -40 to +80 °C
This allows the portable ultrasonic flowmeter to be used for a broad range of industrial liquid measurement applications.
No Process Pressure Limitation
Since the sensors are installed outside the pipe, the flowmeter itself does not introduce an additional process pressure limitation. Endress+Hauser specifies no limit for maximum process pressure.
This is a significant advantage for measurements on high-pressure pipelines where inserting an inline measuring device would require additional process engineering.
Suitable for Metal and Plastic Pipes
The clamp-on sensors can be used with:
Metal pipes
Plastic pipes
Lined pipes
Unlined pipes
Composite pipes
This provides broad installation flexibility for existing industrial piping systems.
Measurement Accuracy
The maximum measurement error is specified as:
±2.0%.
The maximum measuring range reaches:
0 to 452,389 m³/h, depending on pipe size and application conditions.
Display and Operation
The Prosonic Flow 93T features a four-line backlit display with Touch Control.
The portable interface provides access to measurement values and instrument information during field operation.
Typical Applications
The Endress+Hauser Prosonic Flow 93T is suitable for:
Portable liquid flow measurement
Clamp-on ultrasonic flow measurement
Temporary flow monitoring
Flowmeter verification
Flowmeter troubleshooting
Process water measurement
Cooling water measurement
Industrial water flow measurement
Pump performance testing
Commissioning verification
Maintenance measurement
Large pipe flow measurement
Non-invasive flow measurement
Existing pipeline measurement
Key Features
Portable ultrasonic flowmeter
Clamp-on sensor technology
Non-invasive liquid flow measurement
Temporary flow monitoring and verification
Pipe sizes DN 15–4000
Measurement error up to ±2.0%
Measuring range up to 452,389 m³/h
Suitable for pure and slightly contaminated liquids
Metal, plastic, lined, unlined and composite pipes
Battery-powered operation
Integrated USB data logger
USB data transfer without additional software
Four-line backlit display
Touch Control
Liquid temperature up to +170 °C, depending on sensor configuration
No maximum process pressure limitation
Ideal for existing flowmeter verification
