| Attribute | Value |
|---|---|
| Product Name | Rosemount 644 Temperature Transmitter |
| Manufacturer | Rosemount |
| Series | HART Smart Family 644 |
| Model | 644HI1Q4 |
| Input | PT100 / 4-Leiter / 0…300°C |
| Part Number | 0064-1360-6003 |
| Product Code | 644H |
| ATEX Certification | II 1 G Ex BAS00ATEX1033X |
| Explosion Protection | EEx ia IIC T4/T5/T6 |
| Revision | AC |
| Specification Code | 00644-1010-0017 |
| Power Supply | 12-42.4 VDC |
| Output Signal | 4-20 mA |
| Patent Number | U.S. Patent No. 5,498,079 |
| Device Type | Temperature Transmitter |
| Country of Manufacture | Singapore |
| Weight | 140 gm |
What is the Rosemount 644 Temperature Transmitter?
The Rosemount 644 is a field-mount or rail-mount transmitter that performs a temperature sensor input (RTD or thermocouple) conversion to a standard output signal. It finds common usage in industrial applications for increasing accuracy, dependability, and simplicity of data integration with control systems.
Main Features of the Rosemount 644HI1Q4
The 644HI1Q4 is a high-performance version with various cutting-edge features:
High Accuracy and Stability
- The HI (High Accuracy) designation guarantees accuracy measurement with minimal long-term drift.
- Improved sensor diagnostics facilitate early failure detection to guarantee process safety.
HART Communication Protocol
- Supports HART 5 & 7 protocols for seamless integration with installed control systems.
- Facilitates remote configuration, diagnostics, and real-time monitoring.
Flexible Sensor Compatibility
- Compatible with RTDs (Resistance Temperature Detectors) and thermocouples.
- Dual-sensor inputs for redundancy and advanced averaging functions.
Rugged and Durable Design
- Ideal for tough environments with extreme temperatures and humidity.
- Offered in head-mount or rail-mount configurations to suit different installations.
Fast Response Time
- Fast update rates provide real-time temperature measurement.
- Assists in critical applications where temperature changes require prompt response.
User-Friendly Configuration
- May be configured using Rosemount AMS Device Manager, Field Communicator, or other HART-based devices.
- Provides local and remote calibration for ease of use.
Advantages of Using the Rosemount 644HI1Q4
Utilizing this transmitter provides various benefits:
✅ Better Process Control – Precise temperature measurement improves process performance.
✅ Lower Maintenance Expenses – Fault detection in advance avoids surprise failures.
✅ Increased Safety – Integrated diagnostics improve operational safety.
✅ Smooth Integration – Compatible with installed control and automation systems.
✅ Long-Term Reliability – Engineered for withstanding harsh industrial conditions.
Applications of Rosemount 644HI1Q4
The 644HI1Q4 temperature transmitter has broad application in several industries:
Oil & Gas: Tracks temperature in pipelines, refineries, and LNG storage facilities.
Chemical Processing: Maintains accurate temperature control in reactors and heat exchangers.
Power Generation: Monitors turbine and boiler temperatures for efficiency and safety.
Food & Beverage: Maintains temperature under perfect conditions in processing and storage facilities.
Pharmaceuticals: Maintains compliance with regulations in drug storage and manufacturing.
