Rosemount 3144P 3144S Temperature Transmitter

Emerson Rosemount 3144 series smart temperature transmitters include 3144P general model and 3144S high-stability model, the industry standard for critical process control and SIS safety loops. It supports single/dual sensor inputs, compatible with RTD, thermocouple, mV, ohm sensors. Equipped with X‑Well non-intrusive temperature measurement technology and full sensor diagnostics. Dual-compartment housing with IP66/IP67 protection, optional HART7 or FOUNDATION Fieldbus communication. Complete explosion-proof, intrinsically safe & SIL2/3 certifications for petrochemical, power, pharmaceutical, oil & gas harsh applications.

1. Unmatched Accuracy and Long-Term Stability

• 3144S: 10-year long-term stability, RTD accuracy of ±0.08°C, and the industry's lowest temperature drift

• 3144P: 5-year stability cycle; transmitter-sensor matching technology; 75% improvement in measurement accuracy

• No minimum range restriction; built-in intelligent filtering to suppress on-site electromagnetic interference (EMI)

2. Flexible single/dual-channel sensor configuration

• Single input: Standard single-point temperature acquisition

• Dual-input: Temperature difference measurement, average temperature measurement, Hot Backup redundancy, automatic failover in case of single-channel failure to prevent downtime

• Fully compatible: Pt100/Pt1000, B/K/S/T/J/R/N thermocouples, millivolt, and resistance signals

3. Comprehensive intelligent diagnostics (reduces on-site inspections by 70%)

• Early warning for thermocouple aging and degradation, sensor drift alarms, and open-circuit fault detection

• Self-calibration for hot and cold junction compensation, loop impedance monitoring, and extreme temperature logging

• Remote reading of fault logs via HART handheld devices or Bluetooth for rapid problem identification

4. X‑Well Non-Intrusive Temperature Measurement Technology (Optional)

No drilling or thermal sleeves required; temperature measurement via external clamping on pipes, up to 650°C. Significantly reduces installation, maintenance, and leakage risks; suitable for clean, high-pressure, and highly corrosive pipelines

5. Communication and User-Friendly Operation

• Dual protocol options: 4–20 mA + HART 7 / FOUNDATION Fieldbus (FF)

• Optional Bluetooth BLE: Wireless configuration via mobile app, no need to open the cover for wiring

• Backlit LCD graphic display, quick local calibration via buttons, supports dual display of mA and temperature

6. Rugged Protection and Safety Certifications

• Dual-chamber isolated housing: Separate circuit and terminal chambers, moisture- and corrosion-resistant, IP66/IP67

• Housing Material: Cast aluminum or 316 stainless steel (optional); electrical interfaces: 1/2 NPT / M20×1.5

• Explosion-Proof Certifications: Ex d flameproof, Ex ia intrinsically safe; ATEX/IECEx, North American CSA/FM

• Safety Instrumented System (SIL2/SIL3) Certification (IEC 61508); compatible with safety interlock systems

Electrical and Output

• Analog Output: 4–20 mA, HART 7 digital overlay

• Bus Version: FOUNDATION Fieldbus FF (3 analog function blocks)

• Supply Voltage: 12–42 VDC, two-wire loop-powered

• Electromagnetic Compatibility: EMI-resistant, compliant with IEC 61000 industrial standards

Mechanical Design

• Housing: Dual-chamber isolated housing, cast aluminum (low-copper) / 316 stainless steel

• Protection Rating: IP66 / IP67

• Electrical Threads: 1/2‑14 NPT / M20×1.5 / PG13.5

• Mounting Brackets: U-clamp, L-shaped wall mount (316 stainless steel)

• Display: M5/M6 backlit LCD with local control buttons (display-less version available)

Safety Certifications

• SIL2/SIL3 IEC 61508 safety certification

• FM/ATEX/IECEx certified for flameproof, intrinsically safe, and dust-ignition-proof applications

• Lead-free, low-copper housing, suitable for low-sulfur oil and gas applications

1. Oil and Gas: Redundant temperature measurement at wellheads, pipelines, and furnaces

2. Fine Chemicals/Pharmaceuticals: Sheathless temperature measurement in clean pipelines; temperature monitoring in explosion-proof workshops

3. Thermal Power/Nuclear Power: SIS-compliant safety temperature measurement for boilers, steam turbines, and heat exchangers

4. Food and Beverage: Sanitary clamp-on temperature measurement with no risk of medium contamination

5. Water Treatment, Metallurgy, and Papermaking: Long-term monitoring in harsh, humid, and corrosive environments

Explanation of the Model Number 3144P1A1B1M5 by Segment

1. Model Base: 3144P (General Purpose) / 3144S (High Precision, Long-Term Stability)

2. Number of Sensor Channels: 1 = Single Input / 2 = Dual Input

3. Output Protocol: A = 4–20 mA + HART / F = FF Fieldbus

4. Housing Material: A = Cast Aluminum / S = 316 Stainless Steel

5. Mounting Bracket: B1 Universal Pipe Clamp / B4 Stainless Steel U-Clamp / B5 L-Shaped Wall Mount

6. Display Module: M5 LCD with Buttons / M6 LCD without Buttons / No Code = No Display

7. Explosion-Proof Certification: E5 Flameproof / I5 Intrinsically Safe / KB North American Combined Certification

• Brand-new, factory-sealed unit, complete with factory calibration certificate, explosion-proof certification, and SIL safety manual

• Standard packaging: Transmitter body, mounting bracket, sealing gasket, instruction manual

• Optional accessories: 375/475 handheld programmer, X-Well pipe clamp temperature measurement kit, various thermowells, extension connectors

• Warranty: Standard 5-year manufacturer's warranty; 10-year warranty for the high-end 3144S model

Q1: How do I choose between the 3144P and 3144S?

A: Choose the 3144P for standard control loops-it offers excellent value for money. For critical SIS safety loops, high-precision metering, and long-term maintenance-free applications, select the 3144S, which features a 10-year stability period and higher accuracy.

Q2: What is the purpose of the dual-sensor input?

A: It enables temperature differential and average temperature measurements. The Hot Backup redundancy feature automatically switches to the other sensor's signal if one fails, preventing production downtime and making it suitable for high-reliability safety processes.

Q3: Does X-Well technology require drilling holes?

A: Absolutely not. It measures by clamping onto the outside of the pipe, eliminating the risk of medium leakage and making it suitable for high-pressure, highly toxic, and clean medium pipelines.

Q4: Can it be configured wirelessly via a smartphone?

A: With the optional BLE Bluetooth module and the Emerson mobile app, you can perform remote calibration and read diagnostic information without a handheld programmer.

Q5: Is it suitable for use in hazardous areas?

A: It supports multiple explosion-proof certifications, including Ex d flameproof and Ex ia intrinsically safe, and meets the requirements for flammable and explosive conditions in Zones 0, 1, and 2, with a SIL 2 safety rating.

All Rosemount 3144 transmitters are 100% original Emerson factory new, complete certificates available, fast global delivery, professional technical support for model selection, calibration and on-site commissioning. Contact us for datasheet, price list and customized order solutions.

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