Reference Manual

00809-0100-4808, Rev CA June 2008

Rosemount 3051N

Security Jumper (Write Protect)

Local Zero and Span

(Local Keys) Software

Lock Out

1.Security Jumper: prevents all writes to transmitter configuration.

2.Local Keys (Local Zero and Span) Software Lock Out: prevents changes to transmitter range points via local zero and span adjustment keys. With local keys security enabled, changes to configuration are possible via HART.

3.Physical Removal of Local Keys (Local Zero and Span) Magnetic Buttons: removes ability to use local keys to make transmitter range point adjustments. With local keys security enabled, changes to configuration are possible via HART.

NOTE

If the security jumper is not installed, the transmitter will continue to operate in the security OFF configuration.

You can prevent changes to the transmitter configuration data with the write protection jumper. Security is controlled by the security (write protect) jumper located on the electronics board or meter face. Position the jumper on the transmitter circuit board in the “ON” position to prevent accidental or deliberate change of configuration data.

If the transmitter write protection jumper is in the “ON” position, the transmitter will not accept any “writes” to its memory. Configuration changes, such as digital trim and reranging, cannot take place when the transmitter security is on.

To enable this feature, see “Local Span and Zero Control (Local Keys)” in Section 2.

Physical Removal of

Local Zero and Span

(Local Keys)

CONFIGURING TRANSMITTER ALARM AND SECURITY JUMPER PROCEDURE

To remove the magnetic buttons used to activate the local zero and span, use a small slotted head screwdriver and pry off the small, plastic cap located under the approval tag. Remove button assemblies and discard.

To reposition the jumpers, follow the procedure described below.

1.If the transmitter is installed, secure the loop and remove power.

2. Remove the housing cover opposite the field terminal side. Do not remove the transmitter covers in explosive atmospheres when the circuit is alive.

3.Reposition the jumpers as desired.

•Figure 2-1shows the jumper positions for Electronics Boards.

•Figure 2-2shows transmitters with an optional LCD meter.

4. Reattach the transmitter cover. Transmitter covers must be fully engaged to meet explosionproof requirements.

2-3

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Emerson Process Management 3051N manual Physical Removal Local Zero and Span Local Keys
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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.
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