Original Hart7 Protocol Dual-Sensor Rosemount Temperature Transmitter for Petrochemical Automation Systems

Product Details
Customization: Available
Type: Automation Equipment
Measuring Medium: Temperature
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  • Original Hart7 Protocol Dual-Sensor Rosemount Temperature Transmitter for Petrochemical Automation Systems
  • Original Hart7 Protocol Dual-Sensor Rosemount Temperature Transmitter for Petrochemical Automation Systems
  • Original Hart7 Protocol Dual-Sensor Rosemount Temperature Transmitter for Petrochemical Automation Systems
  • Original Hart7 Protocol Dual-Sensor Rosemount Temperature Transmitter for Petrochemical Automation Systems
  • Original Hart7 Protocol Dual-Sensor Rosemount Temperature Transmitter for Petrochemical Automation Systems
  • Original Hart7 Protocol Dual-Sensor Rosemount Temperature Transmitter for Petrochemical Automation Systems
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  • Overview
  • Product Description
  • Detailed Photos
  • Product Parameters
  • Packaging & Shipping
  • Company Profile
  • Our Advantages
  • After Sales Service
Overview

Basic Info.

Model NO.
644
Display Type
LCD
Site Display
Site Display
Accuracy
0.2
IP Rating
IP68
Certification
CE
Customized
Customized
Brand
Rosemount
Product Name
Temperature Transmitter
Model
644
Warranty
1 Year
Communication Protocol
Hart 7/5 Protocol5, Foundation Fieldbus9, Profib
Sensor Compatibility
Rtd (PT100/PT1000), Thermocouple (T/C), Mv
Output Signal
4-20 Ma (Hart) / Full Digital (FF/Profibus)
Damping Time
Adjustable 0-100 Sec (Default: 5 Sec)
Protection
IP67/IP68
Display Module
LCD (Option M5) / Loi (Local Operator Interface
Safety Certifications
Sil 2/3 (IEC 61508), Fisco, ATEX/Iecex
Power Supply Range
9-42.4 VDC (Wide Voltage Compatibility)
Alarm Levels
High: 21.75 Ma, Low: 3.6 Ma
Saturation Levels
High: 20.5 Ma, Low: 3.8 Ma
Housing Material
Aluminum / Stainless Steel (Sst)
Transport Package
Box
Specification
21*18*12cm, 1.1kg
Trademark
Rosemount
Origin
China, Singapore
HS Code
9026201090
Production Capacity
100

Packaging & Delivery

Package Size
30.00cm * 30.00cm * 30.00cm
Package Gross Weight
2.000kg

Product Description

 

Product Description

Original Hart7 Protocol Dual-Sensor Rosemount Temperature Transmitter for Petrochemical Automation Systems

Rosemount 644 Temperature Transmitter - Precision Temperature Measurement for Demanding Industrial Applications

The Rosemount 644 Temperature Transmitter is a high-performance, rugged device designed to deliver accurate and reliable temperature monitoring in critical industrial processes. Engineered by Emerson, a global leader in automation solutions, this transmitter is widely used in industries such as oil & gas, chemical processing, power generation, and pharmaceuticals, where precise temperature control is essential for safety and efficiency.

Featuring advanced sensor technology, the Rosemount 644 supports a wide range of RTDs (Resistance Temperature Detectors) and thermocouples, ensuring compatibility with various temperature measurement needs. Its intuitive configuration via the local interface or Emerson's AMS Device Manager simplifies setup and calibration, reducing downtime during installation and maintenance.

Built to withstand harsh environments, the transmitter boasts an IP66/NEMA 4X-rated enclosure, protecting it from dust, moisture, and corrosive elements. With HART® 7, FOUNDATION Fieldbus, and PROFIBUS PA communication protocols, the Rosemount 644 enables seamless integration into modern control systems, supporting real-time diagnostics, remote monitoring, and predictive maintenance.

Whether used in high-temperature reactors, pipelines, or HVAC systems, the Rosemount 644 ensures long-term stability, minimal drift, and exceptional measurement accuracy, making it a trusted choice for engineers worldwide.

Key Advantages of the Rosemount 644 Temperature Transmitter

1. Unmatched Accuracy & Stability

  • High-precision signal conditioning minimizes measurement errors, even in fluctuating environments.
  • Advanced drift detection ensures consistent performance over time, reducing calibration frequency.

2. Robust & Durable Construction

  • Stainless steel or aluminum housing with IP66/NEMA 4X protection for resistance against harsh conditions.
  • Wide operating temperature range (-40°C to +85°C) for reliable performance in extreme climates.

3. Easy Configuration & Diagnostics

  • Local push-button interface for quick setup without additional tools.
  • AMS Device Manager compatibility enables remote configuration, calibration, and troubleshooting.

4. Seamless Communication & Integration

  • Supports HART® 7, FOUNDATION Fieldbus, and PROFIBUS PA for flexible connectivity.
  • Digital signal processing enhances noise immunity, ensuring reliable data transmission.

5. Versatile Sensor Compatibility

  • Works with all major RTDs (Pt100, Pt1000) and thermocouples (J, K, T, E, etc.).
  • Dual-sensor input option for redundancy or differential temperature measurement.

6. Enhanced Safety & Compliance

  • ATEX, IECEx, and FM certifications for use in hazardous areas (Zone 0/1/2).
  • SIL 2/3 compliance for safety-critical applications.

7. Energy Efficiency & Cost Savings

  • Low power consumption reduces operational costs.
  • Long-term reliability minimizes maintenance and replacement expenses.

Detailed Photos

Original Hart7 Protocol Dual-Sensor Rosemount Temperature Transmitter for Petrochemical Automation Systems
Original Hart7 Protocol Dual-Sensor Rosemount Temperature Transmitter for Petrochemical Automation Systems
Original Hart7 Protocol Dual-Sensor Rosemount Temperature Transmitter for Petrochemical Automation Systems

 

Product Parameters

Product Name Rosemount 644 Temperature Transmitter

Communication Protocol

HART 7/5 protocol, FOUNDATION Fieldbus, PROFIBUS PA
Sensor Compatibility RTD (Pt100/Pt1000), Thermocouple (T/C), mV
Output Signal 4-20 mA (HART)  / Full digital (FF/PROFIBUS)
Damping Time Adjustable 0-100 sec (default: 5 sec)
Protection IP67/IP68
Display Module LCD (Option M5)  / LOI (Local Operator Interface,
Safety Certifications SIL 2/3 (IEC 61508) , FISCO , ATEX/IECEx
Power Supply Range 9-42.4 VDC (wide voltage compatibility)

Packaging & Shipping

Original Hart7 Protocol Dual-Sensor Rosemount Temperature Transmitter for Petrochemical Automation Systems

Company Profile

Original Hart7 Protocol Dual-Sensor Rosemount Temperature Transmitter for Petrochemical Automation Systems
KeRui (WeiFang) Automation Equipment Co., Ltd. is specialized in industrial automation instrument development, production and sales, technical services and supporting equipment supply of specialized companies. The main products are flow meters, level meters, temperature meters, pressure meters, electrical meters, thermal meters, programmable controller (PLC), DCS distributed control system, eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemical, environ- mental protection, plastics, food,I printing, tobacco, textile, dyeing and other fields.

 

Our Advantages

Company Advantages of KeRui (WeiFang) Automation Equipment Co., Ltd.

KeRui (WeiFang) Automation Equipment Co., Ltd. is a leading manufacturer and innovator in industrial automation solutions, specializing in pressure transmitters, flowmeters, handheld communicators, valve positioners, and related instrumentation. With decades of expertise and a global reputation for quality, we are committed to delivering cutting-edge products tailored to meet diverse industrial demands. Below are our core competitive advantages:

1. Advanced Technology & Precision Engineering

High-Accuracy Pressure Transmitters: Our pressure transmitters achieve ±0.075% reference accuracy (digital) and ±0.1% (analog), ensuring reliable measurements even in extreme conditions (-40°C to 150°C). Leveraging 18-bit ADC technology, they minimize environmental temperature drift for long-term stability. Smart Flowmeters: Our variable area flowmeters (e.g., ZYZZ series) feature geomagnetic compensation, LCDs, and Exd II CT6 explosion-proof certification, suitable for hazardous environments like oil & gas and chemical plants.Valve Positioners with Auto-Calibration: Equipped with Foundation Fieldbus protocol compatibility, our valve positioners enable automatic zero/span adjustment and reduce commissioning time by 50%, ensuring optimal control loop performance

2. Robust Quality Control & Certifications

ISO 9001 & API Compliance: Adhering to ISO 9001:2015 and API standards, we implement rigorous quality checks from raw material selection to final testing. Durable Construction: Products feature 316L stainless steel, PTFE/PFA coatings, and IP67/IP68 protection, ensuring corrosion resistance and longevity in harsh environments. Global Certifications: Our devices meet ATEX/IECEx, SIL 2/3, and NAMUR NE 21/43 standards, making them compatible with international safety and regulatory requirements

3. Customization & Versatility

Tailored Solutions: We offer custom sensor matching (e.g., RTD, thermocouple) and output signal customization (4-20mA, HART, PROFIBUS) to align with specific application needs Wide Application Coverage: Products are designed for industries including oil & gas, water treatment, chemical processing, and HVAC systems, with flowmeters supporting flow rates from 20Nm³/h to 5000Nm³/h Multi-Function Handheld Communators: Our handheld devices provide intuitive configuration, real-time diagnostics, and PID control integration, streamlining field operations.

4. Innovation & R&D Excellence

In-House R&D Team: With 6+ dedicated engineers, we continuously innovate in materials (e.g., H-alloy sensors) and software (e.g., predictive maintenance algorithms).Smart Features: Products integrate self-diagnostic alerts (e.g., sensor drift detection) and IoT readiness, enabling seamless integration into Industry 4.0 systems.

5. Efficient Production & Global Service

Large-Scale Manufacturing: Operating 7 production bases with 5,000+ annual capacity, we ensure fast delivery and cost-effectiveness Comprehensive Support: Our 51% localized overseas teams provide 24/7 technical assistance, onsite training, and spare parts supply Warranty & Traceability: All products come with a 1-year warranty and full lifecycle traceability, backed by digital documentation for easy maintenance.

6. Sustainable & User-Centric Design

Energy Efficiency: Devices like low-power flowmeters (3.6V lithium battery option) reduce operational costs

Ergonomic Interfaces: Features like dual-indication displays (LCD + analog) and WAGO spring-clamp terminals simplify installation and reduce downtime.

After Sales Service

 

Q: How long will you to give me the reply?

A: We will reply to you as soon as we see the information

Q: What is the delivery time?
A: The products in stock will be shipped after receiving the payment, and the products that need to be ordered are subject to the factory's time.

Q: How about your package?
A: Do not worry about the package; we have a lot of experience packing.

Q: How about the payment terms?
A: You can choose T/T.

Q: What is the MOQ?
A: 1 PC.

 
Q: Can I get a lower price if I order large quantities?
A: Yes, cheaper prices with larger orders.

Q: After sales and warranty?
A: We provide a one-year warranty and lifetime technical support services

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