Product Description
Rosemount 3051 Pressure Transmitter Cover: Engineering Excellence for Industrial Safety and Performance
I. Introduction to the Rosemount 3051 Series
The Rosemount 3051 Pressure Transmitter series represents four decades of innovation in pressure, level, and flow measurement. As an industry benchmark, it integrates reliability, precision (0.04% of span accuracy), and SIL 2/3 safety certifications (IEC 61508)
The transmitter cover is a critical component enabling these capabilities, designed to protect internal electronics while facilitating user interaction in harsh environments.
Detailed Photos
II. Design Philosophy and Material Integrity
A. Robust Construction
Material Composition: The cover is typically manufactured from high-grade 316L stainless steel or industrial polymers, ensuring corrosion resistance in chemical, oil/gas, and marine applications
Environmental Protection: Rated IP67/NEMA 4X or higher, the cover seals against dust, moisture, and corrosive elements. This extends transmitter lifespan in temperatures ranging from -40°C to 85°C (-40°F to 185°F)
Explosion-Proof Design: Complies with ATEX/IECEx standards for hazardous areas (e.g., Zone 0/1), preventing internal sparks from igniting external flammable atmospheres
B. Ergonomic and Functional Features
Compact Form Factor: Designed to complement the transmitter's lightweight (≈1.11 kg) and compact dimensions (99 × 127 × 137 mm), enabling installation in confined spaces
Conduit Openings: Standard ½" NPT entries with optional cable glands for secure wiring.
Transparent Window: Allows visibility to the Local Operator Interface (LOI) without removing the cover, reducing exposure risk in hazardous zones.
Product Parameters
| Parameter |
Specification |
Note/Reference |
| Material |
Aluminum |
Standard housing material for most models. |
| Protection Rating |
IP67, IP68 (optional) |
Dust/water resistance; IP67 standard, IP68 available for submersible use. |
| Color |
Light gray (standard) |
Typical finish for industrial environments. |
| Cover Type |
Hinged, with integrated cable entry |
Facilitates wiring access and maintenance. |
| Certifications |
ATEX, IECEx, FM, CSA, SIL 2/3 |
Complies with global explosion-proof and safety standards. |
| Sealing |
O-ring (standard) |
Ensures environmental sealing; optional FKM for chemical resistance. |
| Operating Temp. |
-40°C to +85°C (-40°F to +185°F) |
Thermal stability for harsh conditions. |
III. Advanced Functional Capabilities
A. Integrated Local Operator Interface (LOI)
Buttonless Configuration (Option Code M4): External magnetic or mechanical buttons enable zeroing, ranging, and diagnostics without compromising the cover's seal-critical for SIL-rated applications
LCD Display: A fully configurable screen shows pressure values (% span, kPa, psi), diagnostic alerts (e.g., "Loop Fault"), and device status. Supports multilingual outputs
B. Safety and Diagnostic Systems
Loop Integrity Monitoring (Option Code DA0): Detects wiring degradation or power issues before they cause process failures, with alerts displayed via the LOI
Transient Voltage Protection: Shields electronics against surges (6 kV peak) and electromagnetic interference (EMI/RFI) per IEEE C37.90.1
IV. Safety Certifications and Compliance
The cover design is integral to the transmitter's global certifications:
Functional Safety: SIL 2/3 (IEC 61508) via Option Code QT
Wireless Compliance: For WirelessHART-enabled models (IEC 62591), the cover houses intrinsic-safe power modules
Industry Standards: ATEX, IECEx, FM, CSA, and INMETRO
V. Installation and Maintenance Advantages
A. Simplified Access
Tool-free removal/reinstallation with quarter-turn fasteners or hinged designs.
Dual sealing gaskets ensure integrity after repeated openings.
B. Maintenance Optimization
Reduced Calibration Needs: 5-year stability (0.125% URL drift) minimizes cover removal for recalibration
Diagnostic Visibility: LOI displays "Stability Alerts" or "Sensor Health" data, avoiding unnecessary interventions
VI. Application-Specific Adaptations
A. Coplanar™ Platform Integration
For Rosemount 3051C/G/T models, the cover accommodates:
Direct flange-mounted valve manifolds.
Capillary connections for remote seals (e.g., 1199 diaphragm seals)
B. Flow and Level Solutions
With integrated flow meters (3051CFA Annubar, 3051CFC Compact Orifice), the cover protects electronics from pipe vibration and pulsation
VII. Comparative Advantages Over Legacy Designs
| Feature |
Rosemount 3051 Cover |
Conventional Covers |
| Hazardous Area Access |
External configuration (no removal) |
Requires cover removal |
| Sealing Reliability |
Redundant gaskets + IP67 |
Single gasket (IP65 typical) |
| Diagnostic Integration |
Loop fault detection + display |
Limited/no diagnostics |
VIII. Future-Proofing and Industry 4.0 Readiness
WirelessHART Compatibility: Covers for wireless transmitters (e.g., 3051S with IEC 62591) include antenna ports
IIoT Integration: QR codes on covers link to digital twins for asset management.
IX. Conclusion: The Unseen Guardian
The Rosemount 3051 transmitter cover is more than a protective shell-it is an enabler of safety, precision, and operational efficiency. By merging ruggedness with smart accessibility, it upholds Emerson's legacy of reducing lifecycle costs while ensuring compliance in critical measurements. As industries advance toward autonomous operations, this component remains pivotal in bridging physical hardware with digital transformation.
References & Further Data:
Material specifications: Pages 43, 52
Safety certifications: SIL 2/3 (IEC 61508), Option QT
Environmental ratings: -40°C to 85°C operational
Dimensions/Weight: 3.9 × 5.0 × 5.4 in, 1.11 kg
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.
Packaging & Shipping
The packaging and transportation of instrumentation in global trade hinges on a synergy of advanced materials, rigorous testing, regulatory compliance, and smart logistics. By adopting hybrid structural designs, leveraging real-time monitoring technologies, and prioritizing sustainability, exporters can ensure the safe, efficient, and cost-effective delivery of precision instruments. Continuous innovation in materials science and IoT integration will further redefine industry standards, enhancing resilience in an increasingly interconnected market.
FAQ
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.
Audited Supplier 
){kind=link}