100% Original Emerson Rosemount 3144p Temperature Transmitter Wiring Terminals

• Customization: Available
• After-sales Service: Offer After-Sales Service
• Warranty: 1 Year
• Model NO.: 3144P Wiring Terminals
• Output Signal: 4–20 Ma
• Power Supply: 100-240V AC, 50/60Hz or 24V DC
• Brand: Rosemount
• Source Area: USA
• Protection Rating: IP66/NEMA 4X
• Operating Temperature: -40°c to +85°c
• Type: DIN B or M12 Connector
• Wire Gauge Range: 0.14–2.5 mm²
• Max Torque: 0.5 N·m
• Isolation: 250V AC RMS
• Humidity: 0–100% Rh
• EMC: En 61326-1
• Safety: ATEX, Iecex, FM, CSA, Sil 2
• Housing Material: Polycarbonate
• Terminal Type: Spring Clamp or Screw Terminal
• Transport Package: with Carton Package
• Specification: 20X15X15 cm
• Trademark: Rosemount
• Origin: USA
• HS Code: 9026201090
• Production Capacity: 100/Month
• Package Size: 20.00cm * 20.00cm * 20.00cm
• Package Gross Weight: 0.500kg

Product Description

Product Description

Rosemount 3144P Temperature Transmitter: Terminal Block Technical Overview
The Rosemount™ 3144P Temperature Transmitter is a state-of-the-art device designed for precision temperature measurement across industrial applications. Its terminal block and wiring system are engineered for reliability, safety, and flexibility, supporting both HART® and FOUNDATION™ Fieldbus protocols. This document details the terminal block's design, specifications, wiring configurations, and safety features.
1. Terminal Block Design and Physical Specifications
The terminal block is housed in a robust, dual-compartment enclosure that separates electronics from wiring, enhancing durability and simplifying maintenance. Key features include:
Conduit/Cable Entries: ½-14 NPT threaded entries for secure conduit or cable gland connections. Hazardous area installations require Ex-certified plugs or seals 
Terminal Material: Nickel-plated brass terminals ensure corrosion resistance and reliable electrical contact.
Safety Isolation: Physical separation between power/signal terminals and sensor terminals prevents cross-circuit faults.
Integrated Wiring Diagram: A comprehensive diagram is affixed inside the housing cover for quick reference during installation 

Detailed Photos

2. Electrical Specifications

Parameter	Specification
Power Supply	12-42 V DC (HART); 9-45 V DC (FF)
Loop Resistance	250-1100 Ω (required for HART communication)
Min. Operating Voltage	12 V DC at terminals (below this voltage, operation is unstable)
Sensor Excitation	1 mA constant current for RTDs; adjustable for mV/Ω inputs

3. Wiring Configurations
The terminal block supports universal input types via a 6-pin design:
Power/Signal Terminals (2 pins):
+/- for DC power and 4-20 mA HART/FF output.
Polarity protection for reverse-connection tolerance.
Sensor Terminals (4 pins):
Configurable for RTDs (2-/3-/4-wire), thermocouples (T/C), mV, or Ω inputs.
Dedicated terminals for sensor redundancy (e.g., dual RTDs or T/Cs).
Supported Sensor Types:

Sensor Type	Wiring Method	Terminal Assignment
4-Wire RTD	Direct connection	S1+, S1-, S2+, S2-
3-Wire RTD	Compensated lead resistance	S1+, S1-, S2- (jumper S2+ to S1+)
Thermocouple	Single/Dual with cold-junction compensation	S1+, S1- (S2+, S2- for backup)

Note: For 3-wire RTDs, unused leads must be insulated and secured to prevent contact
4. Safety and Hazardous Area Compliance
Explosion Protection: Terminal covers must be fully engaged to maintain Ex ratings (ATEX, IECEx, FM). Removal in explosive atmospheres is prohibited 
Electrical Shock Prevention: High-voltage warnings (e.g., 42 V DC max) are mandated on terminals.
Process Leak Prevention: Thermowells/sensors must be tightened before pressurization; removal during operation is unsafe 
Grounding: A dedicated grounding terminal (½-14 NPT) mitigates electrostatic discharge (ESD) and surge risks .
5. HART Protocol Integration
The terminal block enables seamless HART communication:
HART Revisions: Switchable between Rev 5 (legacy systems) and Rev 7 (enhanced diagnostics) via the Message field in Device Information (HART5 or HART7) 
Field Communicator Setup:
Requires Device Descriptor (DD) v1 or later for full functionality (e.g., Rosemount X-well™ diagnostics).
Communicators connect across loop resistors (250-1100 Ω) or directly to power terminals
Figure 1: Field communicator connection to terminals *
6. Special Features via Terminal Configuration
Rosemount X-well™ Technology:
Measures surface temperature without thermowells via terminal-assigned diagnostics (DD v7 required).
Hot Backup™ Redundancy:
Dual-sensor inputs allow automatic failover if primary sensor fails. Configured via Configure Hot Backup in HART menus .
Diagnostics:
Terminal-level alerts for sensor drift, open circuits, or degradation (e.g., thermocouple diagnostics).
7. Installation Best Practices
Pre-Wiring Checks:
Verify loop resistance (≥250 Ω) for HART.
Confirm sensor type matches terminal configuration.
Terminal Tightening:
Torque terminals to 0.5-0.6 N·m (4.5-5.3 lb-in) to avoid loose connections.
Conduit Sealing:
Use Ex-certified seals in hazardous areas.
8. Troubleshooting Terminal Issues

Symptom	Probable Cause	Solution
No HART communication	Loop resistance <250 Ω	Add resistor to meet 250-1100 Ω
Sensor reading error	Incorrect wiring (e.g., 3-wire RTD jumpers)	Recheck terminal assignments
Low output (<4 mA)	Voltage <12 V at terminals	Verify power supply stability

9. Certifications and Compliance
The terminal block meets global standards:
Hazardous Locations: ATEX, IECEx, FM, CSA.
Electrical Safety: IEC 61010-1.
Environmental: IP66/IP68 (NEMA 4X) 
Conclusion
The Rosemount 3144P's terminal block combines versatility, safety, and advanced diagnostics, making it ideal for critical temperature applications. Its universal input support, HART/FF flexibility, and robust hazardous-area design ensure reliable performance in demanding environments. For detailed wiring diagrams or protocol-specific guides, consult the Reference Manual (00809-0106-4021) or Quick Start Guide (00825-0100-4021)

Company Profile

KeRui (weifang) Automation Equipment Co., Ltd.specializes in industrial automation instrument development, production and sales, technical services, and supportingequipment supply of specialized companies. The main products are flow meters, level meters, temperature meters,pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC)DCS distributed control systems,and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco,textile, dyeing, and other felds.

 

 

Company Achievements

KeRui (Weifang) Automation Equipment Co. Ltd. Has maintained a cooperatve relationship with Rosemount for 15 years, and our purchase quantity has reached 20,000 units.
We supplied the tuning fork level gauge to the Rosemount factory and have been well received by the Beijing factory. We have cooperated with Yokowaga and maintained a cooperative relationship for 8 years, and our purchase quality has reached 7000 units.
The companies we have cooperated with:
1. Awarded "Outstanding Supplier by Yanchang Petroleum in 2008
2. In December 2012, our company was awarded the "Excellent Equipment Service Award" for the expansion project of units 6 and 7 of the Guangdong Guohua Yuedaishan Power Plant
3. Awarded "Outstanding Supplier by Yaxing Group in 2013
4.200 transmitters for Haihua Group's ethylene debottlenecking transformation project in 2015.
5. In 2018, we were rewarded as a National Nuclear Power Instrumentation Industry Measurement and Testing Alliance member.
6.160 transmitters and 20 electric autuators for the Shandong Laigang Yongfeng Steel expansion project in 2019
7.In 2022, Jinneng Chemical (Qingdao) Co., Led/ Jinneng 2x450,000 tons/ year high-performance polypropylene project (newly built) equipped 460 transmitters from our company.
8. In 2022, Shandong Qinghe Chemical Technology Co., Ltd.s hydrogen peroxide method epoxy propane device and supporting hydrogen peroxide device expansion project used 253 pressure transmitters.
9.In 2022, the Wanhua Chemical HTN project NPG installed 320 transmitters and 50 sets of valve positioners.

 

 

 

 

Packaging & Shipping

The packaging and transportation of instrumentation in global trade hinges on a synergy of advanced materials, rigorous testing, regulatory compliance, and smart logistics. By adopting hybrid structural designs, leveraging real-time monitoring technologies, and prioritizing sustainability, exporters can ensure the safe, efficient, and cost-effective delivery of precision instruments. Continuous innovation in materials science and IoT integration will further redefine industry standards, enhancing resilience in an increasingly interconnected market.

FAQ

Q: How long will you give me the reply?
A: We will reply to you as soon as we see the information.
Q: What is the delivery time?
A: Our delivery time is within 3-7 days after we get your payment;
for large qty mass orders, the time should be confirmed again for you.
Q: How about your package?
A: Do not worry about the package, we have rich experience in packing, and all our package is wooden case package.
Q: How about the payment terms?
A: You can choose T/T.
Q: Do you provide samples?
A: Yes, we have materials in stock to help you to get the samples as soon as we can.
Q: What is the MOQ?
A:1PC.
Q: Can I get a lower price if I order large quantities?
A: Yes, cheaper prices with more bigger size orders.