Explosion Proof 3051C Pressure Transmitter Strong Stable
Product Overview:
The Rosemount 3051C Explosion-Proof Pressure Transmitter is engineered for reliable performance in demanding industrial environments. Designed with a rugged explosion-proof housing, it ensures safety in hazardous areas while delivering precise differential pressure measurements. With proven stability and durability, the 3051C supports critical applications such as flow, level, and pressure monitoring. Its strong construction, advanced electronics, and long-term stability make it a trusted choice for process control systems worldwide.
| Feature / Model |
Rosemount 3051C |
Rosemount 3051T |
Sentec PMD3051 |
| Type |
Coplanar Differential Pressure Transmitter |
In-Line Pressure Transmitter |
Explosion-Proof Differential Pressure Transmitter |
| Measurement Range |
Wide range: up to 20,000 psi, depending on configuration |
Similar ranges, optimized for in-line applications |
Customizable ranges for air/gas applications |
| Accuracy |
±0.075% of span (high-performance option ±0.04%) |
±0.075% of span |
±0.1% of span (typical) |
| Stability |
0.1% of URL for 5 years |
0.1% of URL for 5 years |
0.2% of URL for 3 years |
| Explosion-Proof Certification |
FM, CSA, ATEX, IECEx |
FM, CSA, ATEX, IECEx |
CE, ISO, and local explosion-proof certifications |
| Housing Material |
Aluminum or stainless steel |
Aluminum or stainless steel |
Aluminum alloy |
| Output Signal |
4–20 mA with HART® protocol |
4–20 mA with HART® protocol |
4–20 mA standard |
| Applications |
Flow, level, and differential pressure in hazardous areas |
Direct in-line pressure measurement |
Air pressure, HVAC, and general industrial use |
| Special Features |
Coplanar design for easy manifold integration |
Compact in-line design |
Cost-effective, customizable options |
Product Selection Table:
| model |
Type of transmitter (choose one) |
CD |
CG |
CA |
| 3051CD 3051CG 3051CA |
Differential pressure transmitter, Gauge pressure transmitter, Absolute pressure transmitter |
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| code |
Pressure range (URL) (choose one)
3051CD type 3051CG type 3051CA type |
CD |
CG |
CA |
| 0 |
Not provided 0-0.167to0-5psia
(0-8.6to0-260mmHga) |
-- |
-- |
-- |
| 1 |
0-0.5to0-25inH20 Not provided 0- 0.3 to 0- 30 psi
(0-2.07to0-206.8kPa) (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) |
-- |
-- |
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| code |
output |
CD |
CG |
CA |
A
M(1) |
4- 20mA, with a digital signal based on the HART protocol
Low power consumption, 1-5VDC with digital signal based on HART protocol (0.8-3.2Vdc, using option code C2) Not provided |
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Applications:
Rosemount 3051CG Typical Models
| Series |
Suffix Options |
Model Variants |
| 3051CGxA02A1AB1H2L4M5 |
Base configuration |
CG1, CG2, CG3, CG4, CG5 |
| 3051CGxA02A1AB3H2L4M5 |
Alternate “AB3” option |
CG1, CG2, CG3, CG4, CG5 |
| 3051CGxA02A1AB1H2L4M5K5 |
With “K5” option |
CG1, CG2, CG3, CG4, CG5 |
| 3051CGxA02A1AB1H2L4M5E5 |
With “E5” option |
CG1, CG2, CG3, CG4, CG5 |
| 3051CGxA02A1AB1H2L4M5I5 |
With “I5” option |
CG1, CG2, CG3, CG4, CG5 |
| 3051CGxA02A1AB3H2L4M5K5 |
“AB3” + “K5” option |
CG1, CG2, CG3, CG4, CG5 |
| 3051CGxA02A1AB3H2L4M5E5 |
“AB3” + “E5” option |
CG1, CG2, CG3, CG4, CG5 |
| 3051CGxA02A1AB3H2L4M5I5 |
“AB3” + “I5” option |
CG1, CG2, CG3, CG4, CG5 |
| 3051CGxA22A1AB4M5 |
“A22” + “AB4” option |
CG1, CG2, CG3, CG4, CG5 |
| 3051CGxA22A1AB4M5DF |
“A22” + “AB4” + “DF” option |
CG1, CG2, CG3, CG4, CG5 |
| 3051CGxA22A1AB4M5K5 |
“A22” + “AB4” + “K5” option |
CG1, CG2, CG3, CG4, CG5 |
| 3051CGxA22A1AB4M5E5 |
“A22” + “AB4” + “E5” option |
CG1, CG2, CG3, CG4, CG5 |
| 3051CGxA22A1AB4M5I5 |
“A22” + “AB4” + “I5” option |
CG1, CG2, CG3, CG4, CG5 |
Typical Applications
- Flow Measurement. By connecting across an orifice plate, venturi tube, or flow nozzle, the transmitter measures differential pressure to calculate fluid flow in pipelines.
- Level Measurement Used in pressurized or sealed tanks, the transmitter measures the hydrostatic pressure difference to determine liquid level, even under varying process conditions.
- Pressure Monitoring provides continuous monitoring of line pressure in oil & gas, chemical, and power generation systems, ensuring safe operation in explosive atmospheres.
- Pump and Compressor Control Monitors suction and discharge pressures to optimize performance, protect equipment, and maintain efficiency.
- Steam and Boiler Systems ensure accurate pressure readings in high-temperature, high-pressure environments, supporting safety compliance and energy efficiency.
- Hazardous Area Installations With explosion-proof certification (FM, CSA, ATEX, IECEx), the 3051C/3051CG is widely deployed in refineries, offshore platforms, and chemical plants where flammable gases or vapors are present.
Industry Use Cases
- Oil & Gas: Wellhead monitoring, pipeline flow, separator level control.
- Chemical & Petrochemical: Reactor pressure, distillation column level, storage tank monitoring.
- Power Generation: Boiler drum level, turbine steam pressure.
- Water & Wastewater: Filtration system pressure, reservoir level monitoring.
Frequently Asked Questions (FAQ)
Q1: What is the Rosemount 3051C/3051CG Pressure Transmitter used for?
A: It is designed to measure differential, gauge, or absolute pressure in industrial processes. Typical applications include flow measurement, liquid level monitoring, and line pressure control in hazardous environments.
Q2: What does “Explosion Proof” mean?
A: The transmitter housing is engineered to contain any internal explosion and prevent ignition of external flammable gases or vapors. It complies with FM, CSA, ATEX, and IECEx certifications, making it safe for use in explosive atmospheres.
Q3: What communication protocols are supported?
A: Standard output is 4–20 mA with HART® protocol, enabling integration with modern control systems and remote configuration.
Q4: How accurate is the 3051C/3051CG?
A: Accuracy is typically ±0.075% of span, with high-performance options reaching ±0.04%. Long-term stability is 0.1% of the URL for 5 years.
Q5: Can the transmitter be configured in the field?
A: Yes. Configuration can be done via a handheld HART communicator or local operator interface (LOI), depending on the option codes ordered.
Q6: What industries commonly use this transmitter?
A: It is widely applied in oil & gas, chemical, petrochemical, power generation, and water treatment industries where hazardous conditions require explosion-proof instrumentation.
Q7: What are the typical model codes (3051CG)?
A: Model codes (e.g., 3051CG1A02A1AB1H2L4M5) define specific configurations such as pressure range, housing material, certification options, and electrical connections. Families of codes cover variants CG1–CG5 with suffixes like K5, E5, I5, and DF for special options.
Q8: What maintenance is required?
A: Routine calibration checks and inspection of process connections are recommended. The explosion-proof housing should never be opened while power is applied in hazardous areas.
Q9: How is the transmitter installed?
A: It can be mounted directly to process piping or manifolds. Installation must follow local, national, and international safety codes for explosive environments.
Q10: What makes the 3051C/3051CG different from other transmitters?
A: Its Coplanar™ design allows easy integration with manifolds, while offering industry-leading accuracy, stability, and explosion-proof safety certifications.
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