The Rosemount 3051C pressure transmitter is a high-performance device used for measuring differential, gauge, or absolute pressure in industrial applications. Learn more by reading our post.
In industrial environments, precision is everything. That’s because even a slight change in measurements can affect the entire operation. For example, consider an oil refinery. One of the operations conducted in this industry is oil fracturing.
It involves the introduction of water, sand, and other chemicals to release the oil and gas in the rocks. This is done in a pressurised burst. If the amount of pressure exerted is more or less than expected, then the fracking operation will be negatively impacted.
That’s why industries like oil and gas, petrochemical, and power generation, for example, use the Rosemount 3051c pressure transmitter. If you’ve been considering using this transmitter too, but aren’t sure about it, learn more about it below.
You’ll get a chance to learn about its features, benefits and real-world applications.
What is the Rosemount 3051C Pressure Transmitter?
The Rosemount 3051 Coplanar pressure transmitter is a device that can measure different types of pressure in industrial settings.
Types of Pressure It Can Measure
The Rosemount Transmitter can measure differential, gauge, and absolute pressure.
Differential Pressure
This is the result of the difference between two types of pressure. The Rosemount 3051 pressure transmitter is used to measure differential pressure:
- To detect leaks
- In instances where gases and liquids flow and are filtered in industrial settings
Gauge Pressure
It refers to the difference between atmospheric and absolute pressure.
The Rosemount 3051 Coplanar pressure transmitter measures gauge pressure in industries where the operating pressure exceeds the atmospheric pressure.
Absolute Pressure
This refers to the pressure that exists in a vacuum-like setup. Industry professionals use the Rosemount transmitter to measure absolute pressure in case of tank leaks.
Material It is Made of
It is made from highly durable materials like 316 SST (Stainless Steel), Alloy 400, Tantalum, or Alloy C-276. These materials are used to build the diaphragms of the device.
These diaphragms transmit the vibrations caused by the pressure to the sensor or pressure device, which records the readings.
But what features does the device have that allow it to be used in various industrial settings? Let’s explore below.
What Are the Key Features of the Rosemount 3051 Coplanar Transmitter?
The key features of the Rosemount 3051c pressure transmitter are its Coplanar™ platform and high accuracy and scalability. Its other features include its communication protocols, advanced diagnostics and power efficiency.
Coplanar™ Platform
The Coplanar™ Platform of the Rosemount 3051 pressure transmitter integrates pressure sensors, manifolds*, and seals. In other words, the transmitter integrates the differential pressure sensors, gas or liquid level sensors, and manifolds.
*Note: Manifolds are valves that allow isolation, equalisation and venting of different pressures and gases.
Isolation ensures that the liquids and gases don’t damage the sensor by separating them from it. Equalisation balances the low and high pressures of differential pressure gauges. Venting refers to releasing liquids or gases for safe operation.
This integration allows the transmitter to operate uniformly and helps you avoid making extra slots to fit the mentioned elements.
High Accuracy and Stability
Rosemount transmitters are also known for their high accuracy of up to ±0.04% of span.
Span refers to the difference between the higher and lower pressure values that the transmitter can be calibrated for.
Take a look at the table below to understand its accuracy:
| Pressure Range | Accuracy |
| 0 | ±0.10% of span |
| 1 | ±0.10% of span |
| 2-4 | ±0.04% of span |
| 5 | ±0.065% of span |
Table 1: Accuracy of Rosemount Pressure Transmitter
The Rosemount Transmitter is known for its high stability as well. Stability here refers to the extent to which the transmitter’s performance will vary beyond the upper pressure limit. This transmitter has a stability of ±0.2% over its upper pressure limit over a 10-year period.
Communication Protocols
This transmitter has HART and WirelessHART communication protocols.
HART Communication Protocol
The HART communication protocol stands for the Highway Addressable Remote Transducer protocol. It can support two types of communication channels, namely a 4 to 20 milliAmpere analogue and digital signal.
The digital signals convey information about the diagnostics, value and status of the device. The dual communication channels ensure that the transmitter and the programmable logic controller (PLC) or host device can exchange information.
This exchange allows the PLC to modulate the pressure or level of the liquid or gas as relevant.
WirelessHART Communication Protocol
The WirelessHART Communication Protocol does not involve traditional wiring. It allows the transmitter to relay information seamlessly. This communication protocol ensures that more than 99% of the data is transmitted reliably.
Advanced Diagnostics
The Rosemount Transmitter has advanced diagnostic features which help it detect electrical loop-induced on-scale failures. These include power advisory, SPM, plugged impulse line alerts, logging capabilities, and process alerts.
| Feature | What It Means |
| Power Advisory | Monitoring the electrical communication protocol loop of the transmitter to detect any issues. Industry professionals can use the feedback from the transmitter to fix any problems before they get out of hand. |
| Plugged Impulse Line Alerts | Monitoring whether the transmitter’s impulse line is clogged with solid materials, which interfere with the capacity of the device to respond to pressure changes |
| Logging Capabilities | The transmitter can log or map changes in the temperature or pressure, allowing industry professionals to fix any issues during installation or operation |
| Process Alerts | Monitor operational aspects like pressure, temperature, and alert professionals in case the values don’t match the configured settings |
Table 2: Diagnostic Features of Rosemount Pressure Transmitter
What Are the Benefits of Using the Rosemount 3051 C Pressure Transmitter?
Some of the advantages of using the Rosemount 3051 Coplanar Pressure Transmitter include operational efficiency, reduced maintenance costs, and flexible installation.
Operational Efficiency
The response time of the pressure transmitter ensures that industry professionals can respond to any changes as soon as possible. This increased speed helps them boost their operations as well.
Apart from that, due to the Rosemount 3051c pressure transmitter’s advanced digital features help industry professionals to quickly replace defective components.
Reduced Maintenance Costs
Rosemount 3051 Coplanar pressure transmitters have a high stability range of ±0.2% over their upper pressure limit over a 10-year period. Apart from that, they have various advanced diagnostic features like Plugged Impulse Line Alerts, Process Alerts, and Logging Capabilities.
These diagnostic features help industry professionals repair the necessary components, which reduces negligence-linked maintenance costs.
Quick Installation
You can easily install these transmitters and configure them for pressure, flow and level applications. Their co-planar design means all the sensors and other components are on the same plane.
So you won’t need to make separate spaces for the pressure sensors, manifolds, and seals.
Where is the Rosemount Pressure Transmitter Used?
Take a look at the table below to get an idea about the applications of the Rosemount 3051 C Pressure Transmitter:
| Industry | Typical Application | Benefits |
| Oil & Gas | Pipeline pressure monitoring | Reliable in harsh environments |
| Chemical | Flow measurement (DP-based) | Accurate and safe measurement |
| Water Treatment | Pump discharge pressure | Reduces manual maintenance |
| Power Plants | Steam line monitoring | High temp and pressure tolerance |
Table 3: Rosemount 3051C Use Cases by Industry
Wrapping Up
The Rosemount 3051 Coplanar Pressure Transmitter is a robust and highly accurate pressure transmitter designed for modern industrial needs.
Its advanced diagnostics, high stability, communication protocols and Coplanar™ Platform ensure that you can streamline your operations.
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