Rosemount 3144P Temperature Transmitter

Overview

The Rosemount 3144P Temperature Transmitter provides superior accuracy, stability, and reliability, making it the industry-leading temperature transmitter used in critical control and safety applications. Available with either 4-20mA/HART or completely digital FOUNDATION Fieldbus protocol, the 3144P accepts either single-sensor or dual-sensor inputs, with dual-sensor capability enabling differential temperature measurement, averaging temperature, or redundant temperature measurement from two independent sensors.

As an authorized supplier of Emerson instrumentation, Seven Star LLC proudly offers the Rosemount 3144P to oil and gas, petrochemical, pharmaceutical, and utility facilities across the Sultanate of Oman, Muscat, and the wider GCC. The HART version of the 3144P is approved for use in Safety Instrumented Systems, with third-party validated metrics tested per IEC 61508, giving safety engineers confidence in critical temperature monitoring loops.

Measurement Principle

The Rosemount 3144P can be configured for a variety of sensor inputs, including RTD, thermocouple, millivolt, or ohm, with support for 2-, 3-, and 4-wire RTD configurations. Accuracy reaches ±0.18°F for Pt100 RTD inputs, delivered through 3 analog inputs and 1 input selector, with a 9.0 to 32VDC supply drawing a maximum of 11mA.

The Transmitter-Sensor Matching feature eliminates interchangeability error, improving accuracy by 75% by trimming the transmitter to the specific sensor’s Callendar-Van Dusen calibration constants. Sensor Drift Alert continuously monitors the differential temperature between two sensors; when one sensor drifts and the differential exceeds defined limits, the user is alerted to an unreliable measurement before it affects process control.

Engineering Design of the Rosemount 3144P

The Rosemount 3144P features a dual-compartment housing that isolates the electronics and terminal compartments, protecting sensitive electronics from field wiring disturbances. The Hot Backup feature reduces the risk of losing important temperature measurements by 80%, automatically switching the measurement to a backup sensor if the primary sensor fails—a critical safeguard for continuous process control loops.

Meeting NAMUR NE 21 recommendations, the 3144P ensures top transmitter performance in harsh EMC environments, while the HART version additionally meets NAMUR NE 43 and NE 89 recommendations. High-performance diagnostics available with both HART and FOUNDATION Fieldbus communication provide continuous measurement status (good, bad, or uncertain) and sensor failure indication, with performance information available to AMS asset management software.

Key Features

The Rosemount 3144P combines dual-sensor flexibility with industry-leading accuracy and diagnostics. Core capabilities include:

• Single- or dual-sensor input supporting RTD, thermocouple, millivolt, or ohm sensor types.
• ±0.18°F accuracy for Pt100 RTD inputs.
• Transmitter-Sensor Matching improving accuracy by 75% by eliminating interchangeability error.
• Hot Backup feature reducing risk of measurement loss by 80% via automatic sensor switchover.
• Sensor Drift Alert for continuous monitoring of dual-sensor differential temperature.
• HART version approved for use in Safety Instrumented Systems (IEC 61508 tested).
• Dual-compartment housing isolating electronics and terminal wiring compartments.
• Compliant with NAMUR NE 21, NE 43, and NE 89 recommendations for EMC and diagnostics.

Industrial Applications

The Rosemount 3144P is well suited to oil and gas processing, petrochemical facilities, pharmaceutical manufacturing, food and beverage production, and utility plants across Oman requiring precise, reliable temperature measurement in critical control and safety loops. Its dual-sensor and Hot Backup capabilities make it especially valuable in processes where continuous temperature visibility cannot be interrupted.

As an authorized supplier of Emerson instrumentation, Seven Star LLC supports refineries, petrochemical plants, and utilities throughout the Sohar and Salalah economic zones and the broader GCC region with the Rosemount 3144P’s industry-leading temperature measurement reliability.

Technical Specifications

Full technical parameters for the Rosemount 3144P temperature transmitter:

Call To Action

To submit a formal Request for Quote (RFQ), check regional stock availability, or arrange technical consultation for the Rosemount 3144P Temperature Transmitter, please contact the official instrumentation division at Seven Star LLC today. As an authorized supplier of Emerson instrumentation in Oman and the GCC, our engineers are ready to assist with rapid sourcing for your temperature measurement and safety instrumented system projects.