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Coriolis Flowmeter features corrosion-resistant design.

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Coriolis Flowmeter features corrosion-resistant design.
Coriolis Flowmeter features corrosion-resistant design.
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October 22, 2012 - Immune to external disturbances, Proline Promass 83O/84O simultaneously measure mass flow, fluid density, and temperature and remain stable despite changing process conditions. All materials that can come in contact with gasses and fluids are manufactured from super duplex stainless steel with 25% Cr, and external design is of T316L stainless steel. Resistant to corrosion, products handle pressures to 3,742 psi and process temperatures from -40 to +392°F.

Endress+Hauser Releases Proline Promass Coriolis 83O/84O Flowmeter

(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)

2350 Endress Place
Greenwood, IN, 46143

Press release date: October 12, 2012

The meter resists corrosion and high pressures, making it ideal for use in offshore drilling platforms, refineries, and floating production storage and offloading facilities.

Endress+Hauser announces the Proline Promass 83O/84O Coriolis flowmeter for use in corrosive, high pressure and high temperature environments in the oil and gas industry. All materials that can come in contact with gasses and fluids are manufactured from super duplex stainless steel with 25% Cr (25 Cr duplex), which offers high protection against saline seawater, hydrogen sulfide, chloride, carbon dioxide and other corrosive materials found in crude oil and natural gas. The T316L stainless steel external design also resists corrosion from salt and sea water exposure.

The 25 Cr duplex sensing tube fulfils all requirements in accordance with NORSOK M-630 and NACE MR175/MR103; as well as corresponding Pressure Equipment Directives like PED Cat. III, ASME, CRN and AD2000. This makes the 83O/84O suitable for use on offshore drilling platforms, floating production storage and offloading (FPSO) facilities, on-shore well fields, custody transfer systems and refineries.

The 83O and 84O were also designed to handle the increasing pressure and temperature requirements of today’s oil and gas exploration environments. As easily-accessible resources are depleted, drilling is moving into deeper and more unfavorable environments. Oil and gas from such holdings often contain poisonous and chemically corrosive substances under very high pressures.

The 83O and 84O handle pressures up to 3,742 psi (258 Bar) and process temperatures from -40 to 392F (-40 to 200C). Both are available in lines sizes of 3, 4 and 6 inch diameters.

Every flowmeter is subjected to rigorous testing on accredited (ISO/IEC 17025) and fully traceable calibration facilities to a maximum measured error of ą0.05%. The 83O is approved for United States custody transfer per API MPMS Chapter 5.6 and AGA 11; NTEP and Measurement Canada weights and measures approvals are pending.

Digital and Analog Output Compatibility
Promass 83O output configuration options include digital communications, supporting Foundation Fieldbus, Profibus PA or DP, EtherNet/IP or Modbus RS485 installations.  Promass 84O analog outputs for 0-10 kHz phase shifted pulse/frequency are also available when custody transfer proving requirements are mandated.

When using the 4-20mA output with HART, intrinsically safe applications for Class 1 Division 1 and other hazardous locations can be satisfied. Promass O has been submitted for a SIL-2 rating for critical applications and complies with NE43 (NAMUR) safety standards, including operating down to 3.6 mA in a fail-safe condition.

Both have built-in diagnostics, and display clear English text errors and root causes on local displays in case of a fault. The flowmeters can also be commissioned and diagnosed with Endress+Hauser’s FieldCare software. If servicing is needed, its DAT function automatic data backup ensures automatic reconfiguration of a repaired or new meter without the need for recalibration.

Promass 83O/84O simultaneously measure mass flow, fluid density and temperature, are highly immune to external disturbances such as pipeline vibration, and are stable under changing process conditions such as pressure, density, temperature or viscosity.

For more information on the Proline Promass 83O/84O Coriolis flowmeter go to the product page at

About Endress+Hauser
Endress+Hauser is one of the world's leading suppliers of measuring devices, services and solutions for industrial process engineering. In 2011, the company group recorded sales of approx. 1.9 billion dollars with more than 8,800 employees. Endress+Hauser supplies sensors, devices, systems and services for level, flow, pressure and temperature measureŽment as well as liquid analysis and measured value recording. The company supports its customers with automaŽtion, logistical and IT services and solutions.

Contact: Crystal Abrell
Market Content Development Manager
Endress+Hauser, Inc.
Phone:  317-535-7138
Fax:  317-535-2171
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