Overview

The pFlow P117 Portable Ultrasonic Flowmeter is a state-of-the-art instrument designed for non-invasive, rapid, and accurate flow measurement in a wide range of industrial applications. Engineered for portability and performance, the P117 is the ideal solution for field engineers, technicians, and maintenance professionals who require a reliable and versatile tool for on-site diagnostics, system verification, and temporary monitoring. Its handheld design, coupled with a robust battery and significant data storage capacity, ensures that it can be deployed anywhere, at any time, to provide critical flow data. The P117 is particularly distinguished by its high-temperature capability, allowing it to measure liquids up to 150°C, a feature that sets it apart from many other portable flowmeters on the market. This makes it suitable for a diverse set of demanding environments, from HVAC and water management to chemical processing and energy audits. The instrument’s clamp-on design means that it can be installed without any pipe modification, system shutdown, or risk of contamination, making it a cost-effective and efficient choice for a multitude of liquid flow measurement tasks.

Measurement Principle

The pFlow P117 operates on the transit-time ultrasonic principle, a highly accurate and reliable method for measuring fluid velocity. This technique involves the use of two ultrasonic transducers, which are clamped onto the exterior of the pipe. These transducers function as both transmitters and receivers of ultrasonic signals. The measurement cycle begins with the upstream transducer sending an ultrasonic pulse through the pipe wall and the fluid to the downstream transducer. The time it takes for this signal to travel is precisely measured. Immediately after, the downstream transducer sends a reciprocal pulse to the upstream transducer, and this transit time is also recorded. When the fluid is flowing, the ultrasonic signal traveling in the direction of the flow will have a shorter transit time compared to the signal traveling against the flow. This time difference, known as the transit-time differential (Δt), is directly proportional to the velocity of the fluid in the pipe. By accurately measuring this time difference, along with the known geometry of the pipe and the properties of the fluid, the pFlow P117 calculates the volumetric flow rate with exceptional precision. This non-intrusive method ensures that there is no pressure drop, no moving parts to wear out, and no risk of leakage, making it a superior choice for a wide array of industrial flow measurement applications.

Engineering Design

The pFlow P117 is meticulously engineered for robust performance in demanding industrial environments. Its compact and lightweight handheld design ensures maximum portability, allowing for easy one-person operation in the field. The enclosure is constructed from durable materials to withstand the rigors of daily use, providing protection against impacts and environmental factors. A key aspect of its design is the user-friendly interface, which is displayed on a clear LCD screen, providing real-time flow data, signal quality, and battery status. The device is powered by a long-lasting rechargeable battery, capable of providing up to 6 hours of continuous operation, making it ideal for extended field inspections. For data logging and analysis, the P117 is equipped with a 16GB TF card, allowing for the storage of a vast amount of measurement data, which can be easily transferred to a computer for further analysis and reporting. The clamp-on transducers are designed for quick and easy installation on a wide range of pipe sizes, from 25mm to 1200mm, and are suitable for various pipe materials. The high-temperature transducers can withstand liquid temperatures up to 150°C, a critical feature for applications in the chemical, energy, and HVAC industries. The entire system is designed for intuitive operation, with a straightforward menu structure and guided setup procedures to ensure that even users with minimal training can obtain accurate and reliable flow measurements.

Key Features

• High-Temperature Measurement: Engineered to accurately measure liquids with temperatures up to 150°C, making it suitable for a wide range of industrial processes.
• Wide Pipe Range Compatibility: Versatile clamp-on transducers accommodate a broad spectrum of pipe sizes, from 25mm to 1200mm in diameter.
• Portable and Handheld Design: The lightweight and ergonomic design allows for easy one-person operation, ideal for field inspections and on-site diagnostics.
• Long Battery Life: A powerful rechargeable battery provides up to 6 hours of continuous operation, ensuring reliability during extended work periods.
• Large Data Storage Capacity: Equipped with a 16GB TF card, the P117 can store extensive measurement data for later analysis and reporting.
• Non-Invasive Clamp-On Technology: The flowmeter is installed on the exterior of the pipe, eliminating the need for pipe cutting, system shutdown, or process contamination.
• User-Friendly Interface: A clear LCD screen and an intuitive menu system provide a straightforward user experience, enabling quick setup and easy access to measurement data.
• Robust and Durable Construction: Built to withstand the challenges of industrial environments, ensuring long-term reliability and performance.

Industrial Applications

The pFlow P117 Portable Ultrasonic Flowmeter is a versatile instrument with a wide range of applications across various industries. Its non-invasive nature and high-temperature capabilities make it an indispensable tool for professionals in the following sectors:

• HVAC and Building Management: Ideal for balancing heating and cooling systems, verifying pump performance, and conducting energy audits to optimize building efficiency.
• Water and Wastewater Management: Used for leak detection, water distribution analysis, and verifying the accuracy of permanently installed meters in municipal water systems.
• Chemical Processing: Suitable for measuring the flow of various chemicals, acids, and bases, where process interruption is not an option and corrosion resistance is critical.
• Power Generation: Employed for monitoring cooling water circuits, boiler feed water, and other processes within power plants to ensure operational efficiency and safety.
• Food and Beverage: Provides a hygienic solution for flow measurement in food and beverage production, as the clamp-on design eliminates any contact with the process fluid.
• Pharmaceutical: Used in applications where sterile conditions are paramount, such as monitoring the flow of purified water and other liquids in pharmaceutical manufacturing.
• Oil and Gas: Applied in various upstream, midstream, and downstream processes for temporary flow measurement and verification of existing meters.

Technical Specifications

Frequently Asked Questions (FAQ)

What is the maximum temperature that the pFlow P117 can handle?

The pFlow P117 is designed to operate with high-temperature liquids up to 150°C, making it a suitable portable ultrasonic flowmeter for demanding industrial applications.

Can the pFlow P117 be used on different pipe materials?

Yes, the pFlow P117 is compatible with a wide range of common pipe materials, including carbon steel, stainless steel, PVC, and copper. The material can be easily selected in the device’s menu for accurate measurements.

How long does the battery of this handheld flowmeter last?

The pFlow P117 is equipped with a rechargeable battery that provides up to 6 hours of continuous operation, allowing for extended use in the field.

Is it necessary to shut down the process to install the pFlow P117?

No, the pFlow P117 features a non-invasive, clamp-on design. The transducers are mounted on the outside of the pipe, so there is no need to interrupt the process or cut the pipe for installation.

What is the data logging capacity of the pFlow P117?

The pFlow P117 comes with a 16GB TF card for data storage, which allows for extensive logging of flow data for later analysis and reporting.

How does the pFlow P117 ensure accurate readings?

The pFlow P117 uses the transit-time ultrasonic measurement principle, which provides high accuracy (±1% of reading) and repeatability (0.2%). The device also includes signal quality indicators to ensure proper transducer alignment and reliable measurements.

Is the pFlow P117 suitable for both clean and dirty liquids?

The pFlow P117 is primarily designed for clean liquids. While it can tolerate a small amount of suspended solids or bubbles, for highly contaminated liquids, a Doppler ultrasonic flowmeter might be a more suitable choice.

Call To Action

Contact Seven Star LLC to request a quote (RFQ) or download the official pFlow P117 datasheet. Our engineering team is ready to assist with your flow measurement requirements.