E+H Proline Prosonic Flow P 500 Clamp-On Ultrasonic Flowmeter

Non-Intrusive Clamp-On Flow Measurement Solutions

In modern process engineering, measuring liquid flow without cutting pipes or shutting down active production loops is critical for maintaining uptime and operational safety. The Endress+Hauser Prosonic Flow P 500 Clamp-On Ultrasonic Flowmeter offers an ultra-precise, reliable, non-intrusive flow measurement solution specifically designed for corrosive, high-pressure, or toxic liquid applications. As a professional global distributor of industrial automation instruments and process control devices, we supply authentic, brand-new Endress+Hauser field instruments to meet strict international engineering and safety standards.

The Prosonic Flow P 500 operates on the proven ultrasonic transit-time difference principle. Because the ultrasonic sensors are clamped onto the exterior of the pipe wall, the system never comes into direct physical contact with aggressive or hazardous process fluids. This clamp-on design completely eliminates risks of leakage, chemical corrosion, or media contamination. Whether handling liquid hydrocarbons, corrosive acids, toxic chemicals, or ultrapure water, the P 500 delivers continuous, highly accurate measurement across a wide range of metal, plastic, and lined pipe materials.

Remote Transmitter Architecture & Configurable Signal I/O

The key structural advantage of the Prosonic Flow P 500 lies in its powerful remote transmitter platform (Proline 500), which allows physical separation between the clamp-on sensors and the control interface. This architecture is especially valuable in high-temperature, outdoor, vibrating, or hazardous plant areas where local transmitter access is difficult or unsafe for technicians.

Key signal and control capabilities include:

• Up to 4 Configurable I/Os: Fully flexible input/output channel configurations (such as active/passive 4-20 mA HART, pulse/frequency/switch output, relay outputs, and status inputs) to adapt seamlessly to existing control loop requirements.

• Extensive Digital Fieldbus Protocols: Native support for HART, PROFIBUS DP/PA, FOUNDATION Fieldbus, Modbus RS485, PROFINET, EtherNet/IP, Ethernet-APL, and OPC-UA for direct enterprise SCADA/DCS integration.

• Flexible Sensor Mounting: Supports 1-path or 2-path acoustic measurement arrangements to optimize signal quality in limited straight inlet run configurations.

Maintenance-Free Installation and Flow-Analysis Precision

Traditional clamp-on flowmeters often required periodic re-greasing of acoustic coupling gel, leading to maintenance overhead and signal degradation over time. The Prosonic Flow P 500 utilizes durable, solid coupling pads that eliminate liquid gel dried-out issues, ensuring permanently stable acoustic transmission between the sensor and pipe wall.

Furthermore, the transmitter includes Endress+Hauser’s Flow-Analysis function, which automatically calculates real-time Reynolds number corrections and compensates for dynamic fluid viscosity changes. This ensures high measuring accuracy even during fluctuating flow profiles, dynamic process temperatures, or variable pump discharge rates.

Embedded Diagnostics and Safety with Heartbeat Technology

To comply with strict quality management systems (such as ISO 9001 and SIL functional safety requirements), the Prosonic Flow P 500 features built-in Heartbeat Technology. This continuous diagnostic suite monitors sensor signal strength, acoustic transmission quality, and electronics status in real time without interrupting process operations. Maintenance teams can run automated verification protocols on-demand and generate electronic, tamper-proof compliance reports for regulatory audits and predictive maintenance schedules.

Applications

• Chemical & Petrochemical Industry: Non-intrusive metering of toxic chemicals, concentrated acids, alkalis, aromatic hydrocarbons, and solvents.

• Oil & Gas / Refining: Flow monitoring of crude oil, refined products, liquefied gases, and high-pressure injection fluids in offshore or refinery units.

• Power Generation & Utilities: Feedwater loops, cooling water lines, condensate streams, and district heating networks.

• Water & Wastewater Treatment: Large-diameter raw water mains, industrial effluent lines, and retrofitted pumping stations.

• Pharmaceutical & Fine Chemicals: High-purity process fluids where internal pipe contact or contamination risks must be avoided.

Technical Specifications

• Measuring Principle: Ultrasonic Transit-Time Difference Measurement (Clamp-On)

• Nominal Pipe Size Range: DN 15 to 4000 (1/2″ to 160″)

• Measuring System: 1-path or 2-path sensor arrangement (single or dual channel)

• Sensor & Mounting Materials: Stainless steel sensor housing, aluminum/stainless steel mounting frames, solid acoustic coupling pads

• Suitable Pipe Materials: Carbon steel, stainless steel, cast iron, copper, GRP, PVC, PE, and lined pipes (e.g., rubber, cement, PTFE)

• Measured Variables: Volume flow, sound velocity, signal strength, flow velocity, calculated mass flow

• Max. Measurement Error:

  • Volume flow (field calibrated): ±0.5 % of reading

  • Volume flow (standard): ±1.2 % of reading

• Measuring Range: 0 to 15 m/s (0 to 50 ft/s) bi-directional

• Medium Temperature Range: -40 to +170 °C (-40 to +338 °F); high-temperature option up to +550 °C (+1022 °F)

• Ambient Temperature Range: -40 to +60 °C (-40 to +140 °F)

• Transmitter Housing Material: Coated Die-cast Aluminum (AlSi10Mg) or Stainless Steel 1.4409 (CF3M)

• Degree of Protection:

  • Clamp-on Sensor: IP67 / IP68 (NEMA 4X / 6P) suitable for underwater or underground installation

  • Transmitter: IP66/67 (NEMA 4X)

• Display / Operation: 4-line backlit graphical display with optical touch control; web server access; optional Bluetooth wireless connectivity

• Digital Communication / Fieldbuses: HART, PROFIBUS DP/PA, FOUNDATION Fieldbus, Modbus RS485, PROFINET, EtherNet/IP, Ethernet-APL, OPC-UA

• Power Supply: DC 24 V; AC 100 to 230 V

• Hazardous Area Approvals: ATEX, IECEx, cCSAus, NEPSI, INMETRO, UK Ex

• Safety & Quality Certifications: SIL 2/3, CE, PED, CRN

FAQ

Q1: Can the Prosonic Flow P 500 be installed while the pipeline is in operation? A1: Yes, because the P 500 uses exterior clamp-on ultrasonic sensors, installation is performed completely from the outside of the pipe without shutting down the process line, depressurizing the system, or cutting pipes.

Q2: Is your company the original manufacturer of the Prosonic Flow P 500? A2: No, we are an independent distributor and supplier of industrial process control instrumentation. We supply authentic, brand-new Endress+Hauser devices with full technical documentation, selection support, and global export services.

Q3: Do the acoustic coupling pads require regular replacement or maintenance? A3: No, the P 500 uses solid acoustic coupling pads instead of traditional liquid gel. These pads do not dry out, melt, or wash away, ensuring long-term maintenance-free acoustic transmission.

Q4: Can the Prosonic Flow P 500 measure flow through lined or plastic pipes? A4: Yes, the system works effectively across a wide variety of sound-conducting pipe materials and linings, including stainless steel, carbon steel, PVC, PE, cement-lined, and rubber-lined pipes.

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