E+H Proline Promass O 500 Coriolis Flowmeter

Advanced Coriolis Flow Measurement for Extreme Industrial Processes

The Endress+Hauser Proline Promass O 500 Coriolis Flowmeter represents the pinnacle of precision measurement technology for high-pressure, safety-critical industrial applications. Specifically built to handle extreme process conditions, this robust high-pressure flowmeter combines a durable remote transmitter design with an advanced dual-tube Coriolis sensor. Whether deployed in offshore oil and gas platforms, chemical manufacturing, or fiscal metering, the Promass O 500 delivers uncompromising accuracy, multi-variable data capture, and long-term operational reliability.

Unmatched Measuring Principle & Multivariable Performance Operating independently of physical fluid properties such as viscosity, density, or conductivity, the measuring principle relies on the controlled generation of Coriolis forces within parallel oscillating measuring tubes. The Promass O 500 simultaneously captures multiple process variables from a single process connection, including mass flow rate, volume flow, fluid density, and process temperature. This multivariable capability significantly reduces process measuring points, lowers engineering complexity, and optimizes plant asset management.

Robust Super Duplex Construction for Harsh Environments Durability is paramount in high-pressure operations. The sensor measuring tubes and process connections are crafted from high-grade 25Cr Duplex (Super Duplex, UNS S32750 / 1.4410), providing exceptional mechanical strength and maximum resistance to stress corrosion cracking in aggressive chloride-containing or sour environments. The device supports high-pressure ratings up to PN 250 (Class 1500) and medium temperatures up to +205 °C (+401 °F). For added safety in high-pressure gas applications, optional rupture disks and sensor housing containment configurations are available.

Flexible Transmitter Architecture & Seamless System Integration

The Proline 500 platform features a physically separate transmitter and sensor design, interconnected via standard or digital connecting cables up to 300 meters. This remote configuration is ideal for installations subject to strong vibrations or hazardous areas (Zone 1 / Class I, Division 1 and Zone 2 / Class I, Division 2). The system supports a comprehensive array of industrial communication protocols, including HART, PROFIBUS PA, PROFIBUS DP, Modbus RS485, EtherNet/IP, PROFINET, and Ethernet-APL, ensuring effortless integration into modern distributed control systems (DCS) and programmable logic controllers (PLCs).

Heartbeat Technology for Smart Verification & Diagnostics

Maximize plant uptime and extend calibration intervals using integrated Heartbeat Technology. This built-in verification system allows complete functional testing of the measuring device in its installed state without interrupting the active process. Heartbeat Monitoring continuously supplies diagnostic data regarding meter health, coating, abrasion, or gas entrainment, empowering operators to execute predictive maintenance and safeguard product quality.

Key Benefits & Operational Advantages

• Maximum Safety: Highest resistance to stress corrosion cracking via Super Duplex material.

• Multivariable Measurement: Simultaneous logging of mass flow, volume flow, density, and temperature.

• Space-Saving Installation: No inlet or outlet straight pipe runs required.

• Advanced Connectivity: Up to 4 freely combinable I/Os and multiple digital fieldbus options.

• Intuitive Operation: Backlit local graphic display featuring touch control, WLAN access, and guided ‘Make-it-run’ commissioning wizards.

Application

• Oil & Gas Industry: Offshore production platforms, high-pressure gas transmission, fiscal custody transfer metering, and petroleum refining.

• Chemical & Petrochemical: Corrosive fluid handling, high-pressure reaction monitoring, and multi-phase fluid processing.

• Power & Energy: Steam and high-pressure liquid flow management.

• Marine & Shipbuilding: Ballast water and high-pressure fluid monitoring under extreme vibration conditions.

Technical Specifications

• Measuring Principle: Coriolis mass flow measurement

• Nominal Diameter Range: DN 80 to 250 (3 to 10 inches)

• Process Pressure Rating: Up to PN 250 (ASME Class 1500)

• Medium Temperature Range: -40 to +205 °C (-40 to +401 °F)

• Wetted Material: Super Duplex 25Cr Duplex (UNS S32750 / 1.4410)

• Base Accuracy (Liquids): ±0.10% o.r. (Standard) or ±0.05% o.r. (Optional PremiumCal)

• Base Accuracy (Gases): ±0.35% o.r.

• Inputs & Outputs: Up to 4 configurable I/Os (Current output 4-20mA HART, Pulse/Frequency/Switch, Relay, Current input)

• Communication Protocols: HART, PROFIBUS PA, PROFIBUS DP, Modbus RS485, EtherNet/IP, PROFINET, Ethernet-APL

• Ex Approvals: ATEX, IECEx, cCSAus, NEPSI, UKEX (Zone 1/2)

• Degree of Protection: IP66/67 (Type 4X enclosure)

FAQ

• Q: Does this flowmeter require specific upstream or downstream straight pipe runs?

  • A: No. The Promass O 500 features a compact design that requires no inlet or outlet runs, allowing flexible space-saving installation even in tight piping layouts.

• Q: Can the transmitter and sensor be installed in separate locations?

  • A: Yes. This is a remote version system consisting of a separate transmitter and sensor connected by a standard or shielded cable (up to 300 meters for digital versions), making it ideal for high-vibration or hazardous areas.

• Q: How can I perform verification without shutting down my process?

  • A: The device is equipped with built-in Heartbeat Technology, allowing you to execute traceable verification and health monitoring in-situ without interrupting fluid flow.

• Q: What materials are used for wetted parts to resist high corrosion?

  • A: The measuring tubes and process connections are manufactured from high-performance Super Duplex steel (25Cr Duplex, UNS S32750 / 1.4410), offering exceptional resistance to stress corrosion cracking.

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