Brand new in stock Rosemount 3051CA pressure transmitter (absolute pressure type)
The Rosemount 3051CA pressure transmitter is a common co-planar absolute pressure transmitter under the Rosemount 3051C series. The Rosemount 3051C pressure transmitter has set a new standard for pressure measurement technology. The Rosemount 3051 pressure transmitter features unparalleled operational performance, a flexible CoPlanarTM platform, and upgradeability. The performance specifications of the new Rosemount 3051C pressure transmitter ensure accuracy and stability under different working conditions.
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Classification:
3051 Pressure Transmitter
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Detailed introduction
1. Product Overview:
The Rosemount 3051CA pressure transmitter is a common co-planar absolute pressure transmitter under the Rosemount 3051C series. The Rosemount 3051C pressure transmitter has set a new standard for pressure measurement technology. The Rosemount 3051 pressure transmitter features unparalleled operational performance, a flexible CoPlanarTM platform, and is upgradeable. The performance specifications of the new Rosemount 3051C pressure transmitter ensure accuracy and stability under different working conditions.
Working Principle:During operation, the isolation diaphragm and filling liquid on the high and low-pressure sides transmit the process pressure to the filling liquid, which then transmits the pressure to the sensing diaphragm at the center of the sensor. The sensing diaphragm is a tensioned elastic element whose displacement changes with the applied pressure (for GP gauge pressure transmitters, atmospheric pressure acts as the low-pressure side applied to the sensing diaphragm). For AP absolute pressure transmitters, the low-pressure side always maintains a reference pressure. The maximum displacement of the sensing diaphragm is 0.004 inches (0.1 mm), and the displacement is proportional to the pressure. The capacitive plates on both sides detect the position of the sensing diaphragm. The difference in capacitance between the sensing diaphragm and the capacitive plates is converted into the corresponding current, voltage, or digital HART (Highway Addressable Remote Transducer) output signal.
Applications of the Rosemount 3051 Pressure Transmitter
The performance specifications of the new Rosemount 3051C ensure accuracy and stability under different working conditions. The flexible and variable CoPlanarTM platform design not only provides the best solution for your current application needs but also fully meets your future technical requirements through PlantWeb factory control network and fieldbus technology.
2. Technical Parameters:
| Parameter | Specification |
|---|---|
| Measurement Type | Absolute Pressure |
| Pressure Range | 0–0.3 to 0–4000 psiA (varies by sensor range code) |
| Reference Accuracy | ±0.04% of span (standard); optional ±0.025% with advanced options |
| Stability | ±0.2% of URL over 10 years |
| Output Signals | 4–20 mA HART®, WirelessHART®, FOUNDATION Fieldbus, Profibus PA |
| Process Connection | 1/2–14 NPT, Coplanar™ flange, and others |
| Diagnostics | Plugged impulse line detection, loop integrity, sensor health |
| Operating Temperature | –40 to +85°C (–40 to +185°F), depending on configuration |
| Certifications | SIL 2/3 (IEC 61508), ATEX, IECEx, CSA, FM, and more |
| Mounting | Coplanar™, traditional, or manifold-integrated |
Here are the key features of the Rosemount 3051CA Absolute Pressure Transmitter:
Measurement Range: Measures absolute pressure (vs. vacuum) across a wide span, typically from 0–0.3 to 0–4000 psiA (depending on model range code).
Accuracy: Up to ±0.04% of span, with optional enhancements.
Stability: 10-year long-term stability, reducing maintenance cycles and recalibration needs.
Process Connections: Versatile, including threaded and Coplanar™ flange designs.
Output Signals: Supports 4–20 mA HART®, WirelessHART®, FOUNDATION Fieldbus, and Profibus PA.
Diagnostics: Smart diagnostics like sensor drift detection, loop integrity, and plugged impulse line alerts.
Safety and Compliance: Certified for SIL 2/3 per IEC 61508, with global hazardous area approvals (ATEX, IECEx, CSA, etc.).
Process Isolation: Hermetically sealed sensor ensures durability in harsh, corrosive, or high-vibration conditions.
3. Product Selection Table:
| model | Type of transmitter (choose one) | CD | CG | CA | ||||
| 3051CD 3051CG 3051CA | Differential pressure transmitter Gauge pressure transmitter Absolute pressure transmitter | -- -- -- | -- -- -- | -- -- -- | ||||
| code | Pressure range (URL) (choose one) 3051CD type 3051CG type 3051CA type | CD | CG | CA | ||||
| 0 |
| -- | -- | -- | ||||
| 1 | 0-0.5to0-25inH20 (0-2.07to0-206.8kPa) | Not provided | 0-0.3to0-30psia (0-2.07to0-206.8kPa) | -- | -- | -- | ||
| 2 | 0-2.5to0-250inH200-2.5to0-250inH200-1.5to0-150psia (0-0.62to0-62.2kPa)(0-0.62to0-62.2kPa)(0-10.34to0-1034.2kPa) | -- | -- | -- | ||||
| 3 | 0-10to0-1000inH200-10to0-1000inH200-8to0-800psia (0-2.48to0-248kPa)(0-2.48to0-248kPa)(0-55.16to0-5515.8kPa) | -- | -- | -- | ||||
| 4 | 0-3to0-300 psi 0-3to0-300 psi 0-40to0-4000 psi (0-20.7to0-2070kPa)(0-20.7to0-2070kPa)(0-275.8to0-27580kPa) | -- | -- | -- | ||||
| 5 | 0-20 to 0-2000 psi 0-200 to 0-2000 psi (0-138 to 0-13800kPa) (0-138 to 0-13800kPa) | -- | -- | -- | ||||
| code | output | CD | CG | CA | ||||
| A M(1) | 4-20mA, with digital signal based on HART protocol Low power consumption, 1-5VDC with digital signal based on HART protocol (0.8-3.2Vdc, using option code C2) | Not provided | -- -- | -- -- | -- -- | |||
| code | Structural component materials Process flange material flange material drain/exhaust valve flange joint | CD | CG | CA |
| 5 2 3(2) 4 8(2) 7(2) 0 | Coplanar electroplated carbon steel SST electroplated carbon steel Coplanar SST SST SST Coplanar Hastelloy C Hastelloy C Hastelloy C Coplanar Monel Monel Monel Coplanar electroplated carbon steel Hastelloy C electroplated carbon steel Coplanar SST Hastelloy C SST Alternative flange - see options H2H3H4H7F1F2G1G2FAFBFCFD or S5 | -- -- -- -- -- -- | -- -- -- -- -- -- | -- -- -- -- -- -- |
| code | Isolation Diaphragm | CD | CG | CA |
| 5 2 3(2) 4 5 6 | 316L SST Hastelloy C-276 Monel Tantalum (only applicable to 3051CD and CG models, range 2-5. Not applicable to 3051CA model) Gilded Monel | -- -- -- -- -- | -- -- -- -- -- | -- -- -- -- -- |
| code | 0-type ring | CD | CG | CA |
| A B | Glass filled tetrafluoroethylene (TFE) Graphite filled tetrafluoroethylene (TFE) | -- -- | -- -- | -- -- |
| code | Fill liquid | CD | CG | CA |
| 1 2 | silicone oil Inert liquid (halogenated hydrocarbon) | -- -- | -- -- | -- -- |
| code | Shell material, conduit inlet size | CD | CG | CA |
| A B C D J K L | Aluminum, coated with polyurethane coating 1/2-14NPT Aluminum, coated with polyurethane M2x1.5 (CM20) Aluminum, coated with polyurethane PG13.5 Aluminum, coated with polyurethane G 1/2 SST 1/2-14NPT SST M2x1.5 (CM20) SST PG13.5 | -- -- -- -- -- -- -- -- | -- -- -- -- -- -- -- -- | -- -- -- -- -- -- -- -- |
Typical Models of Rosemount 3051CD/CG Transmitters:
3051CA1A02A1AB1H2L4M5
3051CA2A02A1AB1H2L4M5
3051CA3A02A1AB1H2L4M5
3051CA4A02A1AB1H2L4M5
3051CA5A02A1AB1H2L4M5
3051CA1A02A1AB3H2L4M5
3051CA2A02A1AB3H2L4M5
3051CA3A02A1AB3H2L4M5
3051CA4A02A1AB3H2L4M5
3051CA5A02A1AB3H2L4M5
3051CA1A02A1AB1H2L4M5K5
3051CA2A02A1AB1H2L4M5K5
3051CA3A02A1AB1H2L4M5K5
3051CA4A02A1AB1H2L4M5K5
3051CA5A02A1AB1H2L4M5K5
3051CA1A02A1AB1H2L4M5E5
3051CA2A02A1AB1H2L4M5E5
3051CA3A02A1AB1H2L4M5E5
3051CA4A02A1AB1H2L4M5E5
3051CA5A02A1AB1H2L4M5E5
3051CA1A02A1AB1H2L4M5I5
3051CA2A02A1AB1H2L4M5I5
3051CA3A02A1AB1H2L4M5I5
3051CA4A02A1AB1H2L4M5I5
3051CA5A02A1AB1H2L4M5I5
3051CA1A02A1AB3H2L4M5K5
3051CA2A02A1AB3H2L4M5K5
3051CA3A02A1AB3H2L4M5K5
3051CA4A02A1AB3H2L4M5K5
3051CA5A02A1AB3H2L4M5K5
3051CA1A02A1AB3H2L4M5E5
3051CA2A02A1AB3H2L4M5E5
3051CA3A02A1AB3H2L4M5E5
3051CA4A02A1AB3H2L4M5E5
3051CA5A02A1AB3H2L4M5E5
3051CA1A02A1AB3H2L4M5I5
3051CA2A02A1AB3H2L4M5I5
3051CA3A02A1AB3H2L4M5I5
3051CA4A02A1AB3H2L4M5I5
3051CA5A02A1AB3H2L4M5I5
3051CA1A22A1AB4M5
3051CA2A22A1AB4M5
3051CA3A22A1AB4M5
3051CA4A22A1AB4M5
3051C5A22A1AB4M5
3051CA1A22A1AB4M5DF
3051CA2A22A1AB4M5DF
3051CA3A22A1AB4M5DF
3051CA4A22A1AB4M5DF
3051CA5A22A1AB4M5DF
3051CA1A22A1AB4M5K5
3051CA2A22A1AB4M5K5
3051CA3A22A1AB4M5K5
3051CA4A22A1AB4M5K5
3051CA5A22A1AB4M5K5
3051CA1A22A1AB4M5E5
3051CA2A22A1AB4M5E5
3051CA3A22A1AB4M5E5
3051CA4A22A1AB4M5E5
3051CA5A22A1AB4M5E5
3051CA1A22A1AB4M5I5
3051CA2A22A1AB4M5I5
3051CA3A22A1AB4M5I5
3051CA4A22A1AB4M5I5
3051CA5A22A1AB4M5I5
Frequently Asked Questions – Rosemount 3051CA
1. What type of pressure does the 3051CA measure?
It measures absolute pressure, referenced against a perfect vacuum—ideal for sealed systems or vacuum applications.
2. What is the accuracy of the 3051CA?
Standard reference accuracy is ±0.04% of span, with enhanced options available for tighter tolerances.
3. What communication protocols are supported?
It supports 4–20 mA HART®, WirelessHART®, FOUNDATION Fieldbus, and Profibus PA.
4. Can the 3051CA be used in hazardous environments?
Yes, it carries global certifications including ATEX, IECEx, CSA, FM, and is rated for SIL 2/3 safety applications.
5. What is the long-term stability?
It offers ±0.2% of URL over 10 years, minimizing recalibration needs.
6. What mounting options are available?
It supports Coplanar™, traditional flange, and manifold-integrated configurations.
7. Is it compatible with diaphragm seals?
Yes, it can be paired with remote diaphragm seals for high-temperature or corrosive applications.
8. What’s the difference between 3051CA and 3051CD?
The 3051CA measures absolute pressure, while the 3051CD measures differential pressure—commonly used for flow and level applications.
9. Can I use it in nuclear applications?
No, the 3051CA is not designed for nuclear-qualified applications.
10. Where can I find the official manual?
You can access the full reference manual on .
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