Reference Manual

00809-0100-4808, Rev CA June 2008

Rosemount 3051N

FUNCTIONAL

SPECIFICATIONS

Service

Liquid, gas, or vapor

Output

4–20 mA, user-selectable for linear or square root output; digital signal based

 

on HART® protocol

Power Supply

Load Limitations

 

Maximum loop resistance is determined by the voltage level of the

 

external power supply, as described by:

 

Max. Loop Resistance = 43.5 (Power Supply Voltage – 10.5) ohms

Load (ohms)

1935

 

 

 

 

 

 

 

1500

 

 

 

 

 

 

 

 

 

 

 

 

 

1000

 

 

 

 

 

Design

 

 

 

 

 

 

500

 

 

 

 

 

Region

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10.5

20

30

40

55

 

 

Voltage (V dc)

 

 

 

Communication requires a minimum loop resistance of 250 ohms.

Temperature Limits

Ambient

 

0 to 185

°F (-18 to 85 °C)

 

with meter option:

 

0 to 175

°F (-18 to 80 °C)

 

Process(1) (2) (3)

 

0 to 250

°F (-18 to 121 °C) Coplanarflange

 

0 to 300

°F (-18 to 149 °C) traditional flange

Storage

0 to 212 °F (-18 to 100 °C) with meter option:

0 to 185 °F (-18 to 85 °C)

(1)Process temperatures above 185 °F (85 °C) require derating the ambient temperature limits by 1.5 °F per degree above 185 °F.

(2)220 °F (104 °C) limit in vacuum service; 130 °F (54 °C) for pressures below 0.5 psia

(3)EPR O-ring is limited to 150 °F (66 °C) process temperature.

5-5

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Emerson Process Management 3051N manual Functional Specifications, Service, Output, Temperature Limits

3051N specifications

The Emerson Process Management 3051N is a state-of-the-art pressure transmitter that exemplifies precision and reliability in process automation. Designed for a wide range of industrial applications, the 3051N is celebrated for its advanced features, innovative technologies, and robust construction, catering to the evolving needs of process industries.

One of the standout features of the 3051N is its exceptional accuracy. With a standard accuracy rating of ±0.075% of span, it ensures precise pressure measurements, critical for maintaining optimal process conditions. This high level of accuracy makes it suitable for applications in industries such as oil and gas, chemicals, and water treatment, where even minor deviations can lead to significant operational issues.

The 3051N employs Smart Pressure Technology, integrating digital communication capabilities with traditional analog systems. This technology allows for seamless interoperability with existing process control systems, providing users with vital data for diagnostics, calibration, and configuration via HART, FOUNDATION fieldbus, or Profibus protocols. These capabilities lead to enhanced process efficiency and reduced downtime due to effective predictive maintenance.

Another notable characteristic of this transmitter is its robust design. The 3051N is built to endure harsh industrial environments, with a rugged housing that is resistant to corrosive and hazardous conditions. Its wide operating temperature range, typically from -40°C to 85°C, coupled with various diaphragm materials, ensures that it can function effectively across diverse applications.

Moreover, the Emerson 3051N incorporates advanced predictive diagnostics, enabling users to monitor the health of the transmitter continuously. This feature alerts operators to potential issues before they escalate, facilitating proactive maintenance strategies that can significantly lower operational costs.

The flexible configuration options offered by the 3051N also enhance its usability. Users can select from a variety of pressure ranges, process connection types, and electrical connections, making it easy to customize the transmitter to fit specific application needs.

In conclusion, the Emerson Process Management 3051N pressure transmitter is a versatile and highly efficient device that integrates advanced technology with robust design and exceptional accuracy. Its ability to adapt to various industrial demands while providing predictive diagnostics makes it a preferred choice for professionals seeking reliability and precision in process management.