| Customization: | Available |
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| Type: | Differential Pressure Transmitter |
| Structure Type: | Strain Gauge Pressure Transmitter |
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Rosemount 3051CD Stainless Steel Pressure Transmitter Product Overview
1. Introduction
The Rosemount 3051CD Differential Pressure Transmitter is a flagship product within Emerson's measurement portfolio, renowned for its precision, durability, and adaptability in harsh industrial environments. Designed with CoPlanar™ flange technology, this transmitter combines robust stainless steel construction with advanced diagnostics, making it ideal for applications in oil and gas, chemical processing, power generation, and water treatment
2. Key Specifications
2.1 Measurement Capabilities
Measurement Type: Differential pressure (DP)
Accuracy: ±0.04% of calibrated span (best-in-class)
Stability: ±0.20% of URL (Upper Range Limit) over 10 years
Turndown Ratio: 150:1, enabling wide operational flexibility
Pressure Ranges:
DP: 0-745.92 Pa (3 inH2O) to 0-13,789.51 kPa (2000 psi)
Process Temperature: -40°C to 85°C (-40°F to 185°F)
Static Pressure Rating: Up to 4500 psi (dependent on flange options) .
2.2 Construction & Materials
Wetted Parts:
Isolation Diaphragm: 316L stainless steel (standard); optional materials include Hastelloy C-276, Monel 400, tantalum, and gold-plated variants for corrosive media
Process Flanges: 316L stainless steel with Coplanar design for simplified installation.
Housing: NEMA 4X/IP66-rated stainless steel or epoxy-coated aluminum
2.3 Output & Communication
Output Signals:
4-20 mA HART® (default)
WirelessHART®, FOUNDATION™ Fieldbus, PROFIBUS PA
Low-power 1-5 VDC options (for battery-powered applications)
Diagnostics:
Loop Integrity Check: Detects wiring faults or open circuits.
Advanced diagnostics via AMS Suite or HART 7-compatible devices
| Parameter | Specification |
| Model | 3051CD series (e.g., 3051CD2A22A1AB4) |
| Accuracy | ±0.075% of span (Standard);±0.04% optional (High-performance version) |
| Span Ratio | 100:1 |
| Output Signal | 4-20mA with HART®/FF/Profibus-PA protocols |
| Pressure Range | Differential Pressure: 0-25Pa to 13.8MPa (0-0.12kPa to 2000psi) |
| Overpressure Limit | Up to 31MPa (4500psi for P9 option) |
| Ambient Temperature | -40°C to 85°C (-40°F to 185°F) |
| Enclosure Rating | IP66/IP68, NEMA 4X |
| Process Connection | Stainless steel (SS316L) isolation diaphragm; Optional Monel/Hastelloy C |
| Power Supply | 10.5-55V DC (Loop-powered) |
| Weight | 3.1 kg (Standard version) |
| Certifications | ATEX, CSA, FM, IECEx (Explosion-proof/Intrinsic Safety) |
| Stability | ±0.125% of URL per 5 years |
3. Design Features
3.1 CoPlanar™ Flange Technology
Direct Mounting: Eliminates traditional manifold systems, reducing potential leak points by 70%
Flange Options: Compatible with ANSI, DIN, and JIS standards; supports traditional and Coplanar configurations (e.g., codes H2, H7) .
3.2 Enhanced Stability & Longevity
10-Year Stability: Calibration drift minimized through patented sensor technology.
NACE Compliance: Materials meet MR0175/ISO 15156 standards for sour service environments
3.3 Safety & Certifications
Global Certifications:
FM, CSA, ATEX, IECEx, EAC (intrinsic safety options: I1, I5, I6, I7, IM)
SIL 2/3 certification (IEC 61508) for safety instrumented systems
Explosion-Proof Design: Suitable for Class I/Division 1 hazardous areas
4. Application Suitability
4.1 Industrial Use Cases
Oil & Gas: Wellhead pressure monitoring, separator level control.
Chemical Processing: Reactor pressure management, corrosive fluid measurement.
Power: Steam header pressure, feedwater flow.
Water/Wastewater: Pump protection, filter differential monitoring
4.2 Installation Guidelines
Liquid Applications:
Mount transmitter at or below process connection.
Orient vent/drain valves upward to prevent air entrapment .
Gas/Steam Applications:
Use condensate pots or heat sinks for steam lines.
Ensure impulse lines are filled with coolant for accurate readings .
5. Configuration & Maintenance
5.1 Local Operation Interface (LOI)
Integrated Display: Configurable via Rosemount 475 Field Communicator or AMS Trex.
Customizable Parameters: Units, damping, alarm thresholds, and output linearization
5.2 Maintenance Best Practices
Zero Calibration: Perform periodic checks under stable conditions.
Diagnostic Alerts: Utilize Predictive Maintenance alerts for proactive servicing.
Spare Parts: Replaceable electronics module minimizes downtime
6. Ordering Information
6.1 Model Codes
Example: 3051CD3A22A1AB4K5M5DF
3051CD: Differential pressure transmitter
3: 0-1000 inH2O range
A: 4-20 mA HART output
22: 316L SS diaphragm
K5: NACE-compliant materials
M5: Coplanar flange
6.2 Restricted Options
Wireless (Code X): Limited to specific ranges, materials, and certifications.
Certifications: Options E8, K8, etc., exclude certain outputs (e.g., FOUNDATION Fieldbus) .
7. Advantages Over Competitors
Superior Accuracy: 0.04% span vs. typical 0.1% industry standards.
Reduced TCO: 5-year warranty and extended calibration intervals lower lifecycle costs.
Scalability: Upgradeable to WirelessHART without hardware replacement
8. Conclusion
The Rosemount 3051CD sets the benchmark for differential pressure measurement with its unmatched precision, rugged stainless steel construction, and compliance with global safety standards. Its modular design and advanced diagnostics ensure reliability in critical applications, while the CoPlanar™ platform simplifies installation and maintenance.
KeRui (Weifang) Automation Equipment Co., Ltd.Specializes in industrial automation instrument development, production and sales, technical services, and supporting equipment supply to specialized companies. The main products are flow meters, level meters, temperature meters, pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC), DCS distributed control systems, and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco, textile, dyeing, and other fields.
Q: How long will you give me the reply?
A: We will reply to you as soon as we see the information.
Q: What is the delivery time?
A: Our delivery time is within 3-7 days after we get your payment;
for large qty mass orders, the time should be confirmed again for you.
Q: How about your package?
A: Do not worry about the package, we have rich experience in packing, and all our package is wooden case package.
Q: How about the payment terms?
A: You can choose T/T.
Q: Do you provide samples?
A: Yes, we have materials in stock to help you to get the samples as soon as we can.
Q: What is the MOQ?
A:1PC.
Q: Can I get a lower price if I order large quantities?
A: Yes, cheaper prices with more bigger size orders.
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