pFlow E5E Ultrasonic BTU Flowmeter for HVAC

Overview

The pFlow E5E Ultrasonic BTU Flowmeter is a high-precision energy meter engineered for thermal energy measurement in heating and cooling systems, combining ultrasonic flow measurement with temperature differential data from integrated PT1000 sensors. Unlike simpler BTU meters, the E5E can independently measure “cooling” and “heating” in both flow directions, making it a genuinely multi-purpose instrument for modern HVAC infrastructure and district energy networks.

As the official authorized partner and exclusive regional representative for pFlow Gentos, Seven Star LLC proudly supplies the E5E to district cooling operators, commercial building management teams, and industrial facilities across the Sultanate of Oman, Muscat, and the wider GCC. With Power over Ethernet (PoE) connectivity and MeterTube app compatibility, the E5E enables seamless remote monitoring and configuration, supporting the region’s shift toward connected, cloud-integrated building automation.

Measurement Principle

The pFlow E5E uses the ultrasonic transit-time method, in which acoustic pulses are transmitted between clamp-on or insertion transducers mounted on the pipe. The meter’s processor calculates the minute time differential between upstream and downstream signals to derive fluid velocity with high precision, achieving flow accuracy of ±1% and energy accuracy of ±2%. This flow data is then combined with the temperature differential measured by paired PT1000 sensors on the supply and return lines to compute real-time thermal energy consumption in both cooling and heating modes.

Because the E5E’s flow sensors mount externally via clamp-on or insertion methods rather than penetrating the pipe wall in-line, the measurement introduces no additional pressure drop and carries no risk of leaks at the sensing point. Advanced digital signal processing improves interference resistance, ensuring stable, repeatable readings even in electrically noisy plant rooms and central air conditioning circuits.

Engineering Design of the pFlow E5E

The pFlow E5E features an advanced modular design with standalone menu operation and an LCD backlight display, supporting pipe sizes from DN25 up to DN1200 depending on configuration. High-precision clamp-on or insertion flow sensors pair with clamp-on or insertion PT1000 temperature sensors, giving installers flexibility to match the sensor configuration to existing pipe access and mechanical constraints.

Power over Ethernet (PoE) supplies both power and data communication over a single cable, simplifying installation in mechanical rooms where running separate power and data lines would add cost and complexity. This single-cable design, combined with cloud data storage and compatibility with the MeterTube app, makes the E5E particularly well suited to building automation systems, chemical plants, and agricultural equipment where centralized energy monitoring is a priority.

Key Features

The pFlow E5E combines bidirectional thermal energy measurement with modern network connectivity. Core capabilities include:

• Independent measurement of cooling and heating energy in both flow directions for genuine multi-purpose operation.
• High-precision clamp-on or insertion flow sensors paired with PT1000 temperature sensors for accurate BTU calculation.
• Flow accuracy of ±1% and energy accuracy of ±2%, suitable for reliable billing and monitoring applications.
• Power over Ethernet (PoE) connectivity, delivering power and data communication over a single cable.
• Compatibility with the MeterTube app and cloud data storage for remote monitoring and configuration.
• Advanced modular design with standalone menu operation and an LCD backlight display.
• Broad pipe size compatibility from DN25 up to DN1200 for both small commercial and large district-scale networks.
• Digital signal processing technology that boosts interference resistance for stable readings in noisy plant environments.

Industrial Applications

The bidirectional measurement capability and PoE connectivity of the pFlow E5E make it well suited to district heating and cooling networks, commercial HVAC systems, and industrial process facilities across Oman. Chilled and cooling water circuits in central air conditioning systems benefit from the E5E’s ability to independently track cooling and heating loads, supporting accurate energy billing and system balancing in large commercial developments.

As the officially authorized partner for pFlow Gentos, Seven Star LLC distributes the E5E to building automation projects, chemical processing plants, and agricultural facilities throughout the Sohar and Salalah economic zones and the broader GCC region. Its cloud connectivity and MeterTube app support allow facilities management teams to monitor thermal energy consumption remotely across multiple properties, an increasingly important requirement for organizations managing large commercial and hospitality portfolios.

Technical Specifications

Full technical parameters for the pFlow E5E ultrasonic BTU flowmeter:

Call To Action

To submit a formal Request for Quote (RFQ), check regional warehouse stock availability, or download complete technical datasheets for the pFlow E5E Ultrasonic BTU Flowmeter for HVAC, please contact the official instrumentation division at Seven Star LLC today. As the authorized partner for pFlow Gentos in Oman and the GCC, our engineers are ready to assist with rapid commercial sourcing and PoE-connected thermal energy metering integration.