| Customization: | Available |
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| Type: | Network Type |
| Measuring Medium: | Temperature |
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The Rosemount 248 Rail-Mounted Temperature Transmitter is a high-performance, versatile solution designed for precise temperature measurement and signal conditioning in industrial applications. Engineered by Emerson, a global leader in automation technologies, this transmitter combines reliability, ease of installation, and advanced functionality to meet the demands of modern process control systems. It is widely used in industries such as oil and gas, chemical processing, power generation, pharmaceuticals, and HVAC, where accurate temperature monitoring is critical for safety, efficiency, and operational excellence.
Key Features
Robust Design and Installation Flexibility
The Rosemount 248 is designed for DIN rail mounting, enabling quick and secure installation in control cabinets or enclosures. Its compact form factor minimizes space requirements while ensuring compatibility with standard industrial infrastructure. The transmitter's rugged construction ensures durability in harsh environments, with resistance to vibration, electrical noise, and temperature extremes.
Wide Sensor Compatibility
This transmitter supports a broad range of temperature sensors, including thermocouples (Types J, K, T, E, R, S, B, N), RTDs (Pt100, Pt200, Pt500, Pt1000, Ni120, Cu10), and millivolt/resistance inputs. This flexibility allows seamless integration with existing sensor types, reducing the need for system redesign during upgrades or replacements.
Advanced Signal Processing
The Rosemount 248 features advanced signal conditioning algorithms to ensure high accuracy (±0.1% of span) and stability over time. It includes linearization, cold-junction compensation (for thermocouples), and sensor diagnostics to detect faults such as open circuits or drift. The transmitter's microprocessor-based design enables configurable scaling, damping, and custom characterization curves to match application-specific requirements.
HART and Analog Communication
Equipped with HART 7 protocol compatibility, the transmitter supports bidirectional digital communication without interrupting the 4-20 mA analog output. This allows for remote configuration, calibration, and diagnostics using HART-compatible tools, enhancing maintenance efficiency. The analog output can be configured for linear, square root, or custom curve responses.
Intrinsic Safety and Certifications
The Rosemount 248 meets global safety and performance standards, including ATEX, IECEx, FM, CSA, and SIL 2 compliance (per IEC 61508). Its intrinsically safe design enables deployment in hazardous areas where flammable gases or dust may be present, ensuring safe operation in critical environments.
User-Friendly Configuration
Configuration is simplified via Emerson's AMS Device Manager, the Rosemount 248 Configurator software, or a local interface with a magnetic programming tool. Users can adjust parameters such as sensor type, range, damping, and alarm thresholds without removing the transmitter from the rail, minimizing downtime.
Technical Specifications
Input Types:Thermocouples, RTDs, mV, ohms
Output:4-20 mA with HART 7
Accuracy:±0.1% of span (RTD), ±0.5°C (thermocouples)
Operating Temperature:-40°C to +85°C (-40°F to +185°F)
Power Supply:12-35 V DC (loop-powered)
Communication:HART 7, Foundation Fieldbus (optional)
Enclosure Rating:IP20 (standard); higher protection with optional housings
Certifications:ATEX, IECEx, FM, CSA, SIL 2
Applications:The Rosemount 248 is ideal for applications requiring reliable temperature monitoring and signal transmission, including:Process heating/cooling systems.Steam and gas turbine monitoring.Reactor temperature control in chemical plants.Environmental chambers and HVAC systems.Energy management and heat exchangers
BenefitsEnhanced Process Efficiency:Precise temperature data supports optimal control, reducing energy waste and improving product quality.
Reduced Maintenance Costs:Diagnostics and remote management capabilities minimize unplanned downtime.
Future-Proof Design:Compatibility with legacy sensors and modern protocols ensures long-term usability.
Safety Compliance:Certifications for hazardous areas align with stringent industry regulations.
Conclusion
The Rosemount 248 Rail-Mounted Temperature Transmitter delivers a blend of precision, adaptability, and robustness, making it a trusted choice for industrial temperature measurement. Its user-centric design, coupled with Emerson's legacy of innovation, ensures seamless integration into both new installations and retrofit projects. By providing reliable data and reducing lifecycle costs, the Rosemount 248 empowers industries to achieve higher operational standards while maintaining safety and compliance.
| Product Name | 248 Rail-Mounted Temperature Transmitter |
| Brand | Rosemount |
| Model | 248 |
| Warranty | 1 Year |
| 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 textile, dyeing, and other fields.protection, plastics, food, printing, tobacco,textile, dyeing, and other fields. |
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