Product Description
Designed to provide industry-standard performance, the Rosemount 2051 Differential Pressure Flow Transmitter offers dependable differential pressure (DP) flow measurements. For easy installation, this DP flow transmitter can be pre-assembled to various primary elements. This safety-certified transmitter also features a local operator interface (LOI) with easy-to-use menus and built-in configuration buttons for device commissioning without tools.
Specifications
Measurement Type | Differential Pressure |
Accuracy | Up to ±0.05% of span |
Stability | Up to ±0.125% of Upper Range Limit (URL) for 5 years |
Warranty | Up to 5-year limited warranty |
Rangedown | Up To 100:1 |
Measurement Range | Up to 2000 psi (137,9 bar) differential |
Output | Differential pressure, scaled variable |
Communication Protocol | 4-20 mA HART®, WirelessHART®, FOUNDATION™ Fieldbus, PROFIBUS®, 1-5 V Low Power HART® |
Process Wetted Material | 316L SST, Alloy C-276, Tantalum |
Diagnostics | Basic Diagnostics |
Certifications/Approvals | SIL 2/3 certified to IEC 61508 by an independent 3rd party, NSF, NACE®, hazardous location, see full specs for complete list of certifications |
Features
• | Available pre-assembled to primary elements for an installation-ready flow solution that ensures reliable performance |
• | Complete flow assemblies are leak-tested and calibrated to reduce leak points up to 70% and simplify installation |
• | Local operator interface offers easy-to-use menus and built-in configuration buttons for streamlined commissioning |
• | Performance up to 0.05% of span accuracy |
• | SIL 2/3 certified to IEC 61508 (via 3rd party) and prior-use certificate of FMEDA data for safety installations |
How it Works
INTEGRATED FLOW METERS
DP Flow measurement can be utilized to optimize many aspects of a process, including product consistency, custody transfer, production efficiency and safety applications. Daniel and Rosemount DP flow measurement solutions are versatile, easy to install and troubleshoot. Devices are suitable for use in a wide range of fluids including corrosive liquids, slurries, saturated or superheated steam, gas and many other process applications.
ORIFICE FITTINGS
Orifice fittings are widely used in the oil and gas industry to measure gas, liquid and even fluids with a small amount of second phase. Common components of an orifice measurement system include the fitting, the plate and the plate carrier. The plate along with the adjacent part of the pipe and the pressure connections constitute the primary element. Cost-effective and straightforward, this technology offers high accuracy without calibration and is easy-to-use and troubleshoot.
There are many kinds of primary elements that provide options for most line sizes and flow rates. These options include standard and conditioning orifice plates, averaging pitot tubes, Venturi tubes, flow nozzles, cones and wedges. With many mounting configurations, these primary elements also feature tighter process control due to low signal noise, high accuracy, low maintenance cost and integral temperature sensor options for reduced process penetrations.
FLOW CALCULATIONS
DP Flow is proportional to the square root of differential pressure, making pressure a critical component of DP Flow calculations. Other factors that influence the mass flow include: density, viscosity, temperature, pipe diameter and fluid type. In many industrial processes, numerous measurement and control devices are used to ensure accurate liquid, gas and steam flow rates for increased safety, productivity and cost-efficiency.
FLOWMETER OUTPUTS
For best-in-class performance, MultiVariable™ transmitters measure static pressure, differential pressure and temperature and can be engineered to calculate flow. Flow meters can provide process variable outputs as well as calculated real-time mass, volumetric or energy flow. Calculated flow output delivers accurate, reliable information quickly for improved process performance.
APPLICATIONS
DP Flow measurement can be utilized to optimize many aspects of a process, including product consistency, custody transfer, production efficiency and safety applications. Daniel and Rosemount DP flow measurement solutions are versatile, easy to install and troubleshoot. Devices are suitable for use in a wide range of fluids including corrosive liquids, slurries, saturated or superheated steam, gas and many other process applications.
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