Rosemount 2051CD2A02A1AS3I1M5 405PS100N065D3H Pressure Trans

Product Details

2051CD2A02A1AS3I1M5 405PS100N065D3H Product Description

The Rosemount 2051CD2A02A1AS3I1M5 405PS100N065D3H is a high-accuracy differential pressure transmitter engineered for seamless integration within layered industrial control architectures. Designed to operate across demanding process environments — including oil & gas, chemical processing, power generation, water treatment, and pulp & paper — this transmitter delivers reliable signal output, robust diagnostics, and long-term measurement stability. Its full option string (405PS100N065D3H) specifies a 4–20 mA HART output with a 316L SST process flange, coplanar configuration, and drain/vent valves, making it a precision-matched component for both greenfield installations and brownfield upgrades within the Rosemount 2051 platform.

Within a complete automation architecture, the Rosemount 2051CD2A02A1AS3I1M5 occupies the field instrumentation layer, feeding calibrated differential pressure signals upward through the I/O and control layers. Its 4–20 mA HART output interfaces directly with Emerson DeltaV DCS I/O cards — such as the DeltaV S-Series Electronic Marshalling CHARMs — enabling point-to-point wiring or CHARM-based flexible marshalling without dedicated junction boxes. In HART-multiplexed architectures, the transmitter communicates secondary variables (static pressure, sensor temperature, and percent range) alongside the primary DP signal, reducing the need for additional field instruments.

For installations using a Rosemount 333 HART Tri-Loop or Rosemount 334 HART Multiplexer, the 2051CD can simultaneously serve as a flow, level, or pressure measurement point within a single loop, maximizing I/O channel utilization on controllers such as the Emerson DeltaV MD Plus Controller or Honeywell C300 Controller. In redundant process architectures, dual 2051CD transmitters can be configured with a Rosemount 2051 Manifold Valve and a Rosemount 305 Integral Manifold to support online calibration and hot-swap maintenance without process shutdown.

At the power layer, the transmitter operates on standard 24 VDC loop power supplied through Phoenix Contact MACX MCR-SL loop-powered isolators or MTL 7787+ Zener barriers in hazardous area installations, ensuring galvanic isolation between field and control room circuits. For fieldbus-enabled plants, the 2051CD is available in Foundation Fieldbus (FF-H1) and PROFIBUS PA variants, integrating natively with Pepperl+Fuchs FieldConnex Segment Couplers and Siemens ET 200SP HA PA Link modules to deliver device diagnostics directly to the DCS asset management layer.

At the HMI and asset management layer, the transmitter's HART Device Description (DD) and Electronic Device Description Language (EDDL) files are supported by Emerson AMS Device Manager and PACTware FDT/DTM frameworks, enabling remote configuration, loop calibration, and predictive maintenance scheduling without field visits. This contextual integration across control, I/O, communication, power, and HMI layers is what distinguishes the 2051CD as a system-matched component rather than a standalone instrument.

Oil & Gas and Petrochemical: The 2051CD2A02A1AS3I1M5 is widely deployed in wellhead pressure monitoring, separator DP level measurement, and flare header flow calculation. Its coplanar flange design and 316L SST wetted parts withstand H₂S-bearing process fluids, while ATEX/IECEx certifications satisfy Zone 1 and Zone 2 hazardous area requirements. Paired with a Rosemount 306 Integral Manifold and a 5-valve configuration, it supports online isolation and equalization without process interruption.

Power Generation: In steam turbine bypass and boiler feedwater systems, the 2051CD provides high-accuracy DP measurement across orifice plates and venturi tubes for flow totalization. Its ±0.04% reference accuracy and 100:1 turndown ratio ensure reliable measurement across variable load conditions, integrating with ABB System 800xA or Yokogawa CENTUM VP DCS platforms via HART or Foundation Fieldbus.

Water and Wastewater Treatment: For filter differential pressure monitoring and pump head measurement in municipal water plants, the 2051CD's IP67 enclosure and wide operating temperature range support outdoor installation in harsh climates. Its HART diagnostics enable remote monitoring from a central SCADA system, reducing the need for manual field rounds.

Mining and Metallurgy: In slurry pipeline DP flow measurement and flotation cell level control, the 2051CD's robust construction and high overpressure protection (up to 2000 psi static pressure) ensure reliable operation in abrasive and corrosive process environments. Integration with Rockwell Automation ControlLogix PAC via HART I/O modules provides seamless data acquisition for process optimization.

Pharmaceutical and Food & Beverage: Sanitary variants of the 2051 platform support CIP/SIP processes, while the standard 2051CD serves utility systems (compressed air, steam, chilled water) in GMP facilities. HART-enabled remote seal configurations eliminate impulse lines in hygienic applications, reducing contamination risk and maintenance burden.

Q1: Is the Rosemount 2051CD2A02A1AS3I1M5 compatible with both legacy HART 5 and current HART 7 DCS systems? Yes. The 2051CD supports HART Revision 5 and HART Revision 7 simultaneously, ensuring backward compatibility with legacy Honeywell TDC 3000, Foxboro I/A Series, and ABB Advant OCS systems while also supporting HART 7 burst mode and enhanced diagnostics on modern DeltaV, System 800xA, and CENTUM VP platforms. No firmware upgrade or hardware change is required when migrating between HART revisions.

Q2: How does the 2051CD integrate into a redundant measurement architecture, and what companion components are recommended? For 1oo2 or 2oo3 redundant DP measurement loops, two or three 2051CD transmitters are mounted on a common coplanar manifold using a Rosemount 305 or 306 Integral Manifold. Each transmitter connects to a separate HART I/O channel on the DCS, with the voting logic implemented in the controller (e.g., DeltaV SIS or Triconex TRICON). The HART secondary variables (static pressure and sensor temperature) provide independent diagnostic signals for each transmitter, enabling fault detection without additional instrumentation. A Rosemount 333 HART Tri-Loop can extract secondary variables as independent 4–20 mA signals for legacy analog I/O systems.

Q3: What is the warranty coverage, and how is long-term spare parts availability ensured for this SKU? Every Rosemount 2051CD2A02A1AS3I1M5 405PS100N065D3H unit supplied by NANKMOS carries a 12-Month Warranty covering manufacturing defects, calibration accuracy, and electronic performance under normal operating conditions. Units are pre-tested and verified prior to shipment, with calibration certificates available on request. NANKMOS maintains in-stock inventory of the 2051 platform to support rapid project timelines, emergency replacements, and scheduled maintenance shutdowns. Long-term spare parts availability is supported by Emerson's global service network, and NANKMOS can source matched replacement modules, manifolds, and electronics boards to extend the operational life of installed 2051 transmitters beyond their initial deployment cycle.